./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.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_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/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_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/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_338d7225-f7ff-476e-a023-136bd29dc8b7/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 ae87ed11769153d118b606184b0208d26c3c2750 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 00:49:09,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:49:09,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:49:09,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:49:09,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:49:09,516 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:49:09,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:49:09,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:49:09,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:49:09,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:49:09,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:49:09,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:49:09,539 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:49:09,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:49:09,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:49:09,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:49:09,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:49:09,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:49:09,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:49:09,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:49:09,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:49:09,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:49:09,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:49:09,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:49:09,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:49:09,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:49:09,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:49:09,589 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:49:09,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:49:09,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:49:09,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:49:09,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:49:09,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:49:09,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:49:09,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:49:09,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:49:09,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:49:09,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:49:09,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:49:09,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:49:09,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:49:09,602 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:49:09,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:49:09,634 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:49:09,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:49:09,635 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:49:09,637 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:49:09,637 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:49:09,638 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:49:09,638 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:49:09,639 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:49:09,639 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:49:09,639 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:49:09,640 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:49:09,640 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:49:09,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:49:09,641 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:49:09,641 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:49:09,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:49:09,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:49:09,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:49:09,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:49:09,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:49:09,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:49:09,643 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:49:09,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:49:09,643 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:49:09,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:49:09,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:49:09,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:49:09,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:49:09,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:49:09,645 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:49:09,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:49:09,646 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:49:09,646 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_338d7225-f7ff-476e-a023-136bd29dc8b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae87ed11769153d118b606184b0208d26c3c2750 [2021-10-13 00:49:09,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:49:09,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:49:09,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:49:09,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:49:09,963 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:49:09,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-13 00:49:10,060 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/data/a0c3131f8/8613f933393646009c81129bd47248e6/FLAG033313b60 [2021-10-13 00:49:10,629 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:49:10,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2021-10-13 00:49:10,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/data/a0c3131f8/8613f933393646009c81129bd47248e6/FLAG033313b60 [2021-10-13 00:49:10,938 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/data/a0c3131f8/8613f933393646009c81129bd47248e6 [2021-10-13 00:49:10,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:49:10,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:49:10,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:49:10,946 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:49:10,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:49:10,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:49:10" (1/1) ... [2021-10-13 00:49:10,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3520fe65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:10, skipping insertion in model container [2021-10-13 00:49:10,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:49:10" (1/1) ... [2021-10-13 00:49:10,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:49:11,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:49:11,293 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_338d7225-f7ff-476e-a023-136bd29dc8b7/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-10-13 00:49:11,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:49:11,439 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:49:11,473 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_338d7225-f7ff-476e-a023-136bd29dc8b7/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c[6057,6070] [2021-10-13 00:49:11,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:49:11,547 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:49:11,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11 WrapperNode [2021-10-13 00:49:11,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:49:11,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:49:11,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:49:11,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:49:11,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:49:11,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:49:11,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:49:11,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:49:11,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:49:11,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:49:11,709 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:49:11,709 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:49:11,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (1/1) ... [2021-10-13 00:49:11,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:49:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:49:11,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:49:11,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:49:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:49:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:49:11,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:49:11,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:49:12,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:49:12,686 INFO L299 CfgBuilder]: Removed 118 assume(true) statements. [2021-10-13 00:49:12,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:49:12 BoogieIcfgContainer [2021-10-13 00:49:12,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:49:12,690 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:49:12,690 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:49:12,697 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:49:12,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:49:12,698 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:49:10" (1/3) ... [2021-10-13 00:49:12,700 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53b52d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:49:12, skipping insertion in model container [2021-10-13 00:49:12,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:49:12,701 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:49:11" (2/3) ... [2021-10-13 00:49:12,701 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@53b52d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:49:12, skipping insertion in model container [2021-10-13 00:49:12,701 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:49:12,702 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:49:12" (3/3) ... [2021-10-13 00:49:12,704 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2021-10-13 00:49:12,763 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:49:12,763 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:49:12,764 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:49:12,764 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:49:12,764 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:49:12,764 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:49:12,764 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:49:12,764 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:49:12,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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 00:49:12,810 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:49:12,810 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:49:12,811 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:49:12,819 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:49:12,819 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:49:12,820 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:49:12,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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 00:49:12,827 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 00:49:12,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:49:12,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:49:12,828 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:49:12,829 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:49:12,834 INFO L791 eck$LassoCheckResult]: Stem: 73#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 52#L-1true havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 15#L925true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 28#L933true main_#t~ret43 := valid_product_#res;main_~tmp~5 := main_#t~ret43;havoc main_#t~ret43; 12#L523true assume 0 != main_~tmp~5; 75#L497true havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L420-1true [2021-10-13 00:49:12,835 INFO L793 eck$LassoCheckResult]: Loop: 62#L420-1true assume !false; 61#L347true assume test_~splverifierCounter~0 < 4; 60#L348true test_~tmp~3 := test_#t~nondet37;havoc test_#t~nondet37; 31#L356true assume !(0 != test_~tmp~3); 39#L356-1true test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 53#L366true assume !(0 != test_~tmp___0~1); 23#L366-1true test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 8#L376true assume 0 != test_~tmp___2~0; 34#L382-1true assume !(0 != ~pumpRunning~0); 7#L157true assume !(0 != ~systemActive~0); 27#L164true havoc __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 49#L92-1true __utac_acc__Specification1_spec__1_#t~ret41 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret41;havoc __utac_acc__Specification1_spec__1_#t~ret41; 50#L420true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 62#L420-1true [2021-10-13 00:49:12,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:12,841 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:49:12,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:12,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150599070] [2021-10-13 00:49:12,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:12,854 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:13,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:13,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:49:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:13,391 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:49:13,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:13,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1672602485, now seen corresponding path program 1 times [2021-10-13 00:49:13,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:13,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266843521] [2021-10-13 00:49:13,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:13,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:13,403 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:49:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:13,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:49:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:13,417 INFO L82 PathProgramCache]: Analyzing trace with hash 41676453, now seen corresponding path program 1 times [2021-10-13 00:49:13,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:13,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411949264] [2021-10-13 00:49:13,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:13,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:13,658 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 00:49:13,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:49:13,659 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411949264] [2021-10-13 00:49:13,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411949264] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:49:13,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:49:13,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:49:13,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157351071] [2021-10-13 00:49:13,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:49:13,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:49:13,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:49:13,868 INFO L87 Difference]: Start difference. First operand has 86 states, 85 states have (on average 1.5176470588235293) internal successors, (129), 85 states have internal predecessors, (129), 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) [2021-10-13 00:49:14,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:49:14,125 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2021-10-13 00:49:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:49:14,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 300 transitions. [2021-10-13 00:49:14,138 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 137 [2021-10-13 00:49:14,145 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 195 states and 279 transitions. [2021-10-13 00:49:14,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 195 [2021-10-13 00:49:14,148 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 195 [2021-10-13 00:49:14,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 195 states and 279 transitions. [2021-10-13 00:49:14,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:49:14,151 INFO L681 BuchiCegarLoop]: Abstraction has 195 states and 279 transitions. [2021-10-13 00:49:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states and 279 transitions. [2021-10-13 00:49:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 120. [2021-10-13 00:49:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 120 states have (on average 1.425) internal successors, (171), 119 states have internal predecessors, (171), 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 00:49:14,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 171 transitions. [2021-10-13 00:49:14,195 INFO L704 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-13 00:49:14,195 INFO L587 BuchiCegarLoop]: Abstraction has 120 states and 171 transitions. [2021-10-13 00:49:14,195 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:49:14,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 120 states and 171 transitions. [2021-10-13 00:49:14,198 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-10-13 00:49:14,198 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:49:14,199 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:49:14,199 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:49:14,200 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:49:14,200 INFO L791 eck$LassoCheckResult]: Stem: 398#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 384#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 340#L925 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 341#L933 main_#t~ret43 := valid_product_#res;main_~tmp~5 := main_#t~ret43;havoc main_#t~ret43; 336#L523 assume 0 != main_~tmp~5; 337#L497 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 383#L420-1 [2021-10-13 00:49:14,200 INFO L793 eck$LassoCheckResult]: Loop: 383#L420-1 assume !false; 393#L347 assume test_~splverifierCounter~0 < 4; 392#L348 test_~tmp~3 := test_#t~nondet37;havoc test_#t~nondet37; 359#L356 assume !(0 != test_~tmp~3); 361#L356-1 test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 369#L366 assume !(0 != test_~tmp___0~1); 349#L366-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 329#L376 assume 0 != test_~tmp___2~0; 330#L382-1 assume !(0 != ~pumpRunning~0); 327#L157 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 328#L189 assume !(0 == ~pumpRunning~0); 335#L164 havoc __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 356#L92-1 __utac_acc__Specification1_spec__1_#t~ret41 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret41;havoc __utac_acc__Specification1_spec__1_#t~ret41; 381#L420 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 383#L420-1 [2021-10-13 00:49:14,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:14,201 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:49:14,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:14,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60160519] [2021-10-13 00:49:14,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:14,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:14,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,257 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:49:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:49:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:14,329 INFO L82 PathProgramCache]: Analyzing trace with hash -352838725, now seen corresponding path program 1 times [2021-10-13 00:49:14,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:14,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352448793] [2021-10-13 00:49:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:14,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:49:14,375 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 00:49:14,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:49:14,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352448793] [2021-10-13 00:49:14,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352448793] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:49:14,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:49:14,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:49:14,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866704939] [2021-10-13 00:49:14,385 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:49:14,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:49:14,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:49:14,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:49:14,389 INFO L87 Difference]: Start difference. First operand 120 states and 171 transitions. cyclomatic complexity: 54 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) [2021-10-13 00:49:14,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:49:14,479 INFO L93 Difference]: Finished difference Result 159 states and 214 transitions. [2021-10-13 00:49:14,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:49:14,480 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 159 states and 214 transitions. [2021-10-13 00:49:14,488 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-13 00:49:14,497 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 159 states to 159 states and 214 transitions. [2021-10-13 00:49:14,497 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 159 [2021-10-13 00:49:14,499 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 159 [2021-10-13 00:49:14,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 159 states and 214 transitions. [2021-10-13 00:49:14,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:49:14,502 INFO L681 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-13 00:49:14,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states and 214 transitions. [2021-10-13 00:49:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-10-13 00:49:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 159 states have (on average 1.3459119496855345) internal successors, (214), 158 states have internal predecessors, (214), 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 00:49:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2021-10-13 00:49:14,523 INFO L704 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-13 00:49:14,523 INFO L587 BuchiCegarLoop]: Abstraction has 159 states and 214 transitions. [2021-10-13 00:49:14,523 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:49:14,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states and 214 transitions. [2021-10-13 00:49:14,526 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2021-10-13 00:49:14,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:49:14,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:49:14,529 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:49:14,530 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] [2021-10-13 00:49:14,530 INFO L791 eck$LassoCheckResult]: Stem: 693#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 675#L-1 havoc main_#res;havoc main_#t~ret43, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5; 626#L925 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 627#L933 main_#t~ret43 := valid_product_#res;main_~tmp~5 := main_#t~ret43;havoc main_#t~ret43; 622#L523 assume 0 != main_~tmp~5; 623#L497 havoc test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_#t~nondet40, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 673#L420-1 [2021-10-13 00:49:14,531 INFO L793 eck$LassoCheckResult]: Loop: 673#L420-1 assume !false; 685#L347 assume test_~splverifierCounter~0 < 4; 686#L348 test_~tmp~3 := test_#t~nondet37;havoc test_#t~nondet37; 763#L356 assume !(0 != test_~tmp~3); 761#L356-1 test_~tmp___0~1 := test_#t~nondet38;havoc test_#t~nondet38; 760#L366 assume !(0 != test_~tmp___0~1); 758#L366-1 test_~tmp___2~0 := test_#t~nondet39;havoc test_#t~nondet39; 755#L376 assume 0 != test_~tmp___2~0; 654#L382-1 assume !(0 != ~pumpRunning~0); 612#L157 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 613#L189 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret36, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 645#L132 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 697#L137 isHighWaterLevel_#t~ret36 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret36;havoc isHighWaterLevel_#t~ret36; 642#L309 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 643#L309-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 682#L315 processEnvironment_#t~ret17 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret17;havoc processEnvironment_#t~ret17; 683#L193 assume !(0 != processEnvironment_~tmp~0); 620#L164 havoc __utac_acc__Specification1_spec__1_#t~ret41, __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 644#L92-1 __utac_acc__Specification1_spec__1_#t~ret41 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret41;havoc __utac_acc__Specification1_spec__1_#t~ret41; 671#L420 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 673#L420-1 [2021-10-13 00:49:14,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:14,533 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:49:14,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:14,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120548835] [2021-10-13 00:49:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:14,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:49:14,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,712 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:49:14,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:14,713 INFO L82 PathProgramCache]: Analyzing trace with hash -539212889, now seen corresponding path program 1 times [2021-10-13 00:49:14,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:14,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617699452] [2021-10-13 00:49:14,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:14,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,721 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:49:14,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,734 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:49:14,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:49:14,735 INFO L82 PathProgramCache]: Analyzing trace with hash -524500915, now seen corresponding path program 1 times [2021-10-13 00:49:14,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:49:14,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274356863] [2021-10-13 00:49:14,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:49:14,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:49:14,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,784 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:49:14,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:49:14,836 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:50:24,593 WARN L207 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:51:30,919 WARN L207 SmtUtils]: Spent 30.97 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:51:31,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:51:31 BoogieIcfgContainer [2021-10-13 00:51:31,095 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:51:31,096 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:51:31,096 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:51:31,096 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:51:31,097 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:49:12" (3/4) ... [2021-10-13 00:51:31,099 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:51:31,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:51:31,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:51:31,149 INFO L168 Benchmark]: Toolchain (without parser) took 140206.48 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 91.9 MB in the beginning and 60.9 MB in the end (delta: 31.0 MB). Peak memory consumption was 59.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,150 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 57.2 MB in the beginning and 57.2 MB in the end (delta: 21.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:51:31,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 602.87 ms. Allocated memory is still 125.8 MB. Free memory was 91.7 MB in the beginning and 95.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,151 INFO L168 Benchmark]: Boogie Procedure Inliner took 114.35 ms. Allocated memory is still 125.8 MB. Free memory was 94.9 MB in the beginning and 92.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,152 INFO L168 Benchmark]: Boogie Preprocessor took 41.90 ms. Allocated memory is still 125.8 MB. Free memory was 92.1 MB in the beginning and 89.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,152 INFO L168 Benchmark]: RCFGBuilder took 980.64 ms. Allocated memory is still 125.8 MB. Free memory was 89.9 MB in the beginning and 52.1 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,153 INFO L168 Benchmark]: BuchiAutomizer took 138405.13 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 52.1 MB in the beginning and 62.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,153 INFO L168 Benchmark]: Witness Printer took 52.68 ms. Allocated memory is still 153.1 MB. Free memory was 62.9 MB in the beginning and 60.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:51:31,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory was 57.2 MB in the beginning and 57.2 MB in the end (delta: 21.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 602.87 ms. Allocated memory is still 125.8 MB. Free memory was 91.7 MB in the beginning and 95.5 MB in the end (delta: -3.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 114.35 ms. Allocated memory is still 125.8 MB. Free memory was 94.9 MB in the beginning and 92.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.90 ms. Allocated memory is still 125.8 MB. Free memory was 92.1 MB in the beginning and 89.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 980.64 ms. Allocated memory is still 125.8 MB. Free memory was 89.9 MB in the beginning and 52.1 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138405.13 ms. Allocated memory was 125.8 MB in the beginning and 153.1 MB in the end (delta: 27.3 MB). Free memory was 52.1 MB in the beginning and 62.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 46.2 MB. Max. memory is 16.1 GB. * Witness Printer took 52.68 ms. Allocated memory is still 153.1 MB. Free memory was 62.9 MB in the beginning and 60.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 159 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 137.7s. Construction of modules took 0.2s. 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 47.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 159 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 227 SDtfs, 641 SDslu, 563 SDs, 0 SdLazy, 60 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 215.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 346]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23670} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=23682, NULL=0, NULL=23670, NULL=23697, retValue_acc=0, NULL=23672, NULL=23692, NULL=23675, methaneLevelCritical=0, NULL=23679, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fffb32b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31ad8be9=0, retValue_acc=1, tmp___0=0, retValue_acc=0, tmp=0, NULL=0, NULL=23687, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@605fc87f=0, NULL=0, tmp___1=0, NULL=23673, NULL=23688, tmp___0=0, NULL=0, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=23676, NULL=23674, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd8f8b8=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@252b2984=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bd2296c=0, NULL=23695, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c3acfec=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=23681, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@422e9914=0, \result=0, NULL=0, NULL=23680, \result=1, head=0, pumpRunning=0, \result=0, NULL=23689, NULL=23671, NULL=23690, retValue_acc=1, NULL=0, tmp=0, NULL=0, NULL=0, tmp=1, NULL=23685, \result=1, NULL=23698, NULL=0, NULL=0, NULL=23693, NULL=0, NULL=0, tmp=1, NULL=23678, NULL=0, tmp___2=61, NULL=0, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, NULL=23696, NULL=23677, NULL=23691, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@281d9134=0, tmp=0, head=0, NULL=23683, NULL=23694, NULL=0, NULL=23684, NULL=23686} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int waterLevel = 1; [L50] int methaneLevelCritical = 0; [L149] int pumpRunning = 0; [L150] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L706] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; [L929] int retValue_acc ; [L932] retValue_acc = 1 [L933] return (retValue_acc); [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) [L337] int splverifierCounter ; [L338] int tmp ; [L339] int tmp___0 ; [L340] int tmp___1 ; [L341] int tmp___2 ; [L344] splverifierCounter = 0 Loop: [L346] COND TRUE 1 [L348] COND TRUE splverifierCounter < 4 [L354] tmp = __VERIFIER_nondet_int() [L356] COND FALSE !(\read(tmp)) [L364] tmp___0 = __VERIFIER_nondet_int() [L366] COND FALSE !(\read(tmp___0)) [L374] tmp___2 = __VERIFIER_nondet_int() [L376] COND TRUE \read(tmp___2) [L157] COND FALSE !(\read(pumpRunning)) [L164] COND TRUE \read(systemActive) [L186] int tmp ; [L189] COND TRUE ! pumpRunning [L301] int retValue_acc ; [L302] int tmp ; [L303] int tmp___0 ; [L129] int retValue_acc ; [L132] COND TRUE waterLevel < 2 [L133] retValue_acc = 1 [L134] return (retValue_acc); [L307] tmp = isHighWaterSensorDry() [L309] COND TRUE \read(tmp) [L310] tmp___0 = 0 [L314] retValue_acc = tmp___0 [L315] return (retValue_acc); [L191] tmp = isHighWaterLevel() [L193] COND FALSE !(\read(tmp)) [L413] int tmp ; [L414] int tmp___0 ; [L88] int retValue_acc ; [L91] retValue_acc = methaneLevelCritical [L92] return (retValue_acc); [L418] tmp = isMethaneLevelCritical() [L420] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:51:31,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_338d7225-f7ff-476e-a023-136bd29dc8b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...