./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF --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 ecbd3b7927e701d55fc39288fc091a7415141c93c89521192fc4dc52b10e4c6c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:41:47,477 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:41:47,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:41:47,546 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:41:47,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:41:47,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:41:47,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:41:47,561 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:41:47,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:41:47,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:41:47,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:41:47,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:41:47,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:41:47,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:41:47,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:41:47,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:41:47,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:41:47,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:41:47,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:41:47,603 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:41:47,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:41:47,607 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:41:47,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:41:47,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:41:47,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:41:47,621 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:41:47,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:41:47,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:41:47,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:41:47,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:41:47,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:41:47,630 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:41:47,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:41:47,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:41:47,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:41:47,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:41:47,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:41:47,638 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:41:47,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:41:47,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:41:47,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:41:47,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:41:47,698 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:41:47,700 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:41:47,701 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:41:47,701 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:41:47,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:41:47,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:41:47,704 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:41:47,704 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:41:47,704 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:41:47,704 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:41:47,705 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:41:47,706 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:41:47,706 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:41:47,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:41:47,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:41:47,707 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:41:47,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:41:47,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:41:47,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:41:47,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:41:47,708 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:41:47,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:41:47,708 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:41:47,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:41:47,709 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:41:47,709 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:41:47,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:41:47,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:41:47,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:41:47,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:41:47,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:41:47,712 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:41:47,713 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:41:47,714 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_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecbd3b7927e701d55fc39288fc091a7415141c93c89521192fc4dc52b10e4c6c [2021-11-20 07:41:48,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:41:48,116 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:41:48,119 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:41:48,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:41:48,122 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:41:48,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2021-11-20 07:41:48,229 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/data/24fe21dba/01fb69e5eb2e4e2fa6981b5dd27e0ad0/FLAGdc39c03c2 [2021-11-20 07:41:48,813 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:41:48,814 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c [2021-11-20 07:41:48,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/data/24fe21dba/01fb69e5eb2e4e2fa6981b5dd27e0ad0/FLAGdc39c03c2 [2021-11-20 07:41:49,073 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/data/24fe21dba/01fb69e5eb2e4e2fa6981b5dd27e0ad0 [2021-11-20 07:41:49,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:41:49,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:41:49,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:41:49,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:41:49,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:41:49,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f9df597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49, skipping insertion in model container [2021-11-20 07:41:49,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:41:49,182 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:41:49,455 WARN L230 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_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c[1605,1618] [2021-11-20 07:41:49,585 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:41:49,596 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:41:49,619 WARN L230 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_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/sv-benchmarks/c/product-lines/minepump_spec1_product28.cil.c[1605,1618] [2021-11-20 07:41:49,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:41:49,781 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:41:49,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49 WrapperNode [2021-11-20 07:41:49,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:41:49,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:41:49,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:41:49,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:41:49,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,836 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,907 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 50, statements flattened = 387 [2021-11-20 07:41:49,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:41:49,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:41:49,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:41:49,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:41:49,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:49,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:41:49,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:41:49,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:41:49,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:41:49,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (1/1) ... [2021-11-20 07:41:50,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:41:50,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:41:50,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:41:50,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:41:50,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:41:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:41:50,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:41:50,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:41:50,236 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:41:50,238 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:41:50,837 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:41:50,850 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:41:50,852 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:41:50,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:50 BoogieIcfgContainer [2021-11-20 07:41:50,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:41:50,857 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:41:50,857 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:41:50,861 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:41:50,862 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:41:50,862 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:41:49" (1/3) ... [2021-11-20 07:41:50,864 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33758890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:41:50, skipping insertion in model container [2021-11-20 07:41:50,864 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:41:50,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:41:49" (2/3) ... [2021-11-20 07:41:50,865 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33758890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:41:50, skipping insertion in model container [2021-11-20 07:41:50,865 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:41:50,865 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:50" (3/3) ... [2021-11-20 07:41:50,867 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product28.cil.c [2021-11-20 07:41:50,921 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:41:50,921 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:41:50,921 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:41:50,921 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:41:50,921 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:41:50,921 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:41:50,922 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:41:50,922 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:41:50,939 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2021-11-20 07:41:50,967 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-11-20 07:41:50,967 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:41:50,967 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:41:50,975 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:50,975 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:50,976 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:41:50,977 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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) [2021-11-20 07:41:50,985 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-11-20 07:41:50,985 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:41:50,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:41:50,987 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:50,987 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:50,993 INFO L791 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 31#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 55#L843true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 13#L836true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 65#L851true main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 93#L938true assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 77#L915true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 103#L535-2true [2021-11-20 07:41:50,994 INFO L793 eck$LassoCheckResult]: Loop: 103#L535-2true assume !false; 49#L536true assume test_~splverifierCounter~0#1 < 4; 70#L537true test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 20#L545true assume !(0 != test_~tmp~3#1); 58#L545-2true test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 105#L555true assume !(0 != test_~tmp___0~0#1); 43#L555-2true test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 18#L565true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 40#L573true assume !(0 != test_~tmp___1~0#1); 91#L573-2true assume { :begin_inline_timeShift } true; 17#L606true assume !(0 != ~pumpRunning~0); 75#L606-2true assume !(0 != ~systemActive~0); 101#L613-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 56#L475true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 15#L800true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 98#L800-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 6#L623true assume { :end_inline_timeShift } true; 103#L535-2true [2021-11-20 07:41:51,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:51,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-20 07:41:51,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:51,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640206062] [2021-11-20 07:41:51,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:51,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:51,140 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:41:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:51,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:41:51,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:51,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1380834287, now seen corresponding path program 1 times [2021-11-20 07:41:51,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:51,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154944549] [2021-11-20 07:41:51,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:51,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:51,260 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:41:51,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:51,269 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:41:51,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:51,271 INFO L85 PathProgramCache]: Analyzing trace with hash 449152683, now seen corresponding path program 1 times [2021-11-20 07:41:51,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:51,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638993209] [2021-11-20 07:41:51,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:51,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:41:51,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:41:51,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:41:51,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638993209] [2021-11-20 07:41:51,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638993209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:41:51,438 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:41:51,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:41:51,439 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144151838] [2021-11-20 07:41:51,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:41:51,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:41:51,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:41:51,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:41:51,678 INFO L87 Difference]: Start difference. First operand has 107 states, 106 states have (on average 1.3584905660377358) internal successors, (144), 106 states have internal predecessors, (144), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 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) [2021-11-20 07:41:51,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:41:51,884 INFO L93 Difference]: Finished difference Result 360 states and 458 transitions. [2021-11-20 07:41:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:41:51,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 360 states and 458 transitions. [2021-11-20 07:41:51,922 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 232 [2021-11-20 07:41:51,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 360 states to 320 states and 418 transitions. [2021-11-20 07:41:51,943 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 320 [2021-11-20 07:41:51,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 320 [2021-11-20 07:41:51,945 INFO L73 IsDeterministic]: Start isDeterministic. Operand 320 states and 418 transitions. [2021-11-20 07:41:51,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:41:51,949 INFO L681 BuchiCegarLoop]: Abstraction has 320 states and 418 transitions. [2021-11-20 07:41:51,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states and 418 transitions. [2021-11-20 07:41:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 146. [2021-11-20 07:41:51,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.3082191780821917) internal successors, (191), 145 states have internal predecessors, (191), 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) [2021-11-20 07:41:51,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 191 transitions. [2021-11-20 07:41:51,991 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2021-11-20 07:41:51,991 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 191 transitions. [2021-11-20 07:41:51,991 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:41:51,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 191 transitions. [2021-11-20 07:41:51,993 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 105 [2021-11-20 07:41:51,993 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:41:51,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:41:51,994 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:41:51,994 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] [2021-11-20 07:41:51,995 INFO L791 eck$LassoCheckResult]: Stem: 576#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 567#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~8#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true; 503#L843 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 504#L836 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 525#L851 main_#t~ret51#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret51#1;havoc main_#t~ret51#1; 526#L938 assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true; 552#L915 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet32#1, test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 491#L535-2 [2021-11-20 07:41:51,995 INFO L793 eck$LassoCheckResult]: Loop: 491#L535-2 assume !false; 578#L536 assume test_~splverifierCounter~0#1 < 4; 538#L537 test_~tmp~3#1 := test_#t~nondet32#1;havoc test_#t~nondet32#1; 539#L545 assume !(0 != test_~tmp~3#1); 510#L545-2 test_~tmp___0~0#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 511#L555 assume !(0 != test_~tmp___0~0#1); 529#L555-2 test_~tmp___2~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 540#L565 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 541#L573 assume !(0 != test_~tmp___1~0#1); 569#L573-2 assume { :begin_inline_timeShift } true; 535#L606 assume !(0 != ~pumpRunning~0); 536#L606-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret36#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 549#L638 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 565#L630-1 assume { :end_inline_processEnvironment__wrappee__base } true; 517#L638-1 assume { :end_inline_processEnvironment } true; 572#L613-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 505#L475 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 506#L800 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 521#L800-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 490#L623 assume { :end_inline_timeShift } true; 491#L535-2 [2021-11-20 07:41:51,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:51,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-20 07:41:51,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:51,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905043931] [2021-11-20 07:41:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:51,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:52,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:41:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:52,062 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:41:52,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash 171627365, now seen corresponding path program 1 times [2021-11-20 07:41:52,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:52,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769395364] [2021-11-20 07:41:52,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:52,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:52,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:52,076 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:41:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:52,091 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:41:52,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:41:52,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1476370647, now seen corresponding path program 1 times [2021-11-20 07:41:52,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:41:52,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667285978] [2021-11-20 07:41:52,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:41:52,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:41:52,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:52,138 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:41:52,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:41:52,166 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:41:55,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:41:55 BoogieIcfgContainer [2021-11-20 07:41:55,994 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:41:55,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:41:55,995 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:41:55,995 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:41:55,996 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:41:50" (3/4) ... [2021-11-20 07:41:55,998 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 07:41:56,104 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:41:56,109 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:41:56,110 INFO L158 Benchmark]: Toolchain (without parser) took 7030.14ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 99.1MB in the beginning and 154.3MB in the end (delta: -55.2MB). Peak memory consumption was 89.1MB. Max. memory is 16.1GB. [2021-11-20 07:41:56,112 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:41:56,112 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.99ms. Allocated memory is still 136.3MB. Free memory was 99.1MB in the beginning and 99.6MB in the end (delta: -542.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:41:56,113 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.46ms. Allocated memory is still 136.3MB. Free memory was 99.6MB in the beginning and 96.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:41:56,114 INFO L158 Benchmark]: Boogie Preprocessor took 78.12ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:41:56,115 INFO L158 Benchmark]: RCFGBuilder took 868.58ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 77.9MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-20 07:41:56,115 INFO L158 Benchmark]: BuchiAutomizer took 5136.82ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 77.9MB in the beginning and 61.6MB in the end (delta: 16.3MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2021-11-20 07:41:56,116 INFO L158 Benchmark]: Witness Printer took 114.92ms. Allocated memory is still 184.5MB. Free memory was 61.6MB in the beginning and 154.3MB in the end (delta: -92.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-11-20 07:41:56,119 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 86.0MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 44.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 697.99ms. Allocated memory is still 136.3MB. Free memory was 99.1MB in the beginning and 99.6MB in the end (delta: -542.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.46ms. Allocated memory is still 136.3MB. Free memory was 99.6MB in the beginning and 96.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.12ms. Allocated memory is still 136.3MB. Free memory was 96.8MB in the beginning and 95.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 868.58ms. Allocated memory is still 136.3MB. Free memory was 95.2MB in the beginning and 77.9MB in the end (delta: 17.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 5136.82ms. Allocated memory was 136.3MB in the beginning and 184.5MB in the end (delta: 48.2MB). Free memory was 77.9MB in the beginning and 61.6MB in the end (delta: 16.3MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. * Witness Printer took 114.92ms. Allocated memory is still 184.5MB. Free memory was 61.6MB in the beginning and 154.3MB in the end (delta: -92.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 4.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 174 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 712 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 712 mSDsluCounter, 936 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 808 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 48 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 128 mSDtfsCounter, 48 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 535]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e678326=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46169d39=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67566f73=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dcc02c6=0, tmp___0=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, \result=0, retValue_acc=0, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f6a19c9=0, tmp=1, tmp___2=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18803d1b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@560c2668=0, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29547b7c=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 535]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L432] int waterLevel = 1; [L433] int methaneLevelCritical = 0; [L598] int pumpRunning = 0; [L599] int systemActive = 1; [L856] int cleanupTimeShifts = 4; [L929] int retValue_acc ; [L930] int tmp ; [L934] FCALL select_helpers() [L935] FCALL select_features() [L936] CALL, EXPR valid_product() [L847] int retValue_acc ; [L850] retValue_acc = 1 [L851] return (retValue_acc); [L936] RET, EXPR valid_product() [L936] tmp = valid_product() [L938] COND TRUE \read(tmp) [L940] FCALL setup() [L941] CALL runTest() [L923] CALL test() [L526] int splverifierCounter ; [L527] int tmp ; [L528] int tmp___0 ; [L529] int tmp___1 ; [L530] int tmp___2 ; [L533] splverifierCounter = 0 Loop: [L535] COND TRUE 1 [L537] COND TRUE splverifierCounter < 4 [L543] tmp = __VERIFIER_nondet_int() [L545] COND FALSE !(\read(tmp)) [L553] tmp___0 = __VERIFIER_nondet_int() [L555] COND FALSE !(\read(tmp___0)) [L563] tmp___2 = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp___2)) [L571] tmp___1 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___1)) [L582] CALL timeShift() [L606] COND FALSE !(\read(pumpRunning)) [L613] COND TRUE \read(systemActive) [L615] CALL processEnvironment() [L635] int tmp ; [L638] COND FALSE !(\read(pumpRunning)) [L653] FCALL processEnvironment__wrappee__base() [L615] RET processEnvironment() [L621] CALL __utac_acc__Specification1_spec__1() [L793] int tmp ; [L794] int tmp___0 ; [L798] CALL, EXPR isMethaneLevelCritical() [L471] int retValue_acc ; [L474] retValue_acc = methaneLevelCritical [L475] return (retValue_acc); [L798] RET, EXPR isMethaneLevelCritical() [L798] tmp = isMethaneLevelCritical() [L800] COND FALSE !(\read(tmp)) [L621] RET __utac_acc__Specification1_spec__1() [L582] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:41:56,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d14ecfc8-dfad-47e4-8ae6-59bf459e6ed9/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)