./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU --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 adc521790d868e8902785ea29b51f549e45d9404af4185d7531e4ae8ae0e6ca8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 23:20:17,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 23:20:17,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 23:20:18,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 23:20:18,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 23:20:18,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 23:20:18,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 23:20:18,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 23:20:18,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 23:20:18,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 23:20:18,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 23:20:18,028 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 23:20:18,029 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 23:20:18,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 23:20:18,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 23:20:18,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 23:20:18,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 23:20:18,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 23:20:18,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 23:20:18,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 23:20:18,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 23:20:18,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 23:20:18,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 23:20:18,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 23:20:18,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 23:20:18,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 23:20:18,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 23:20:18,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 23:20:18,072 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 23:20:18,073 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 23:20:18,074 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 23:20:18,075 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 23:20:18,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 23:20:18,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 23:20:18,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 23:20:18,080 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 23:20:18,081 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 23:20:18,081 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 23:20:18,081 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 23:20:18,082 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 23:20:18,083 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 23:20:18,084 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 23:20:18,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 23:20:18,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 23:20:18,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 23:20:18,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 23:20:18,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 23:20:18,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 23:20:18,137 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 23:20:18,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 23:20:18,138 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 23:20:18,138 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 23:20:18,139 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 23:20:18,139 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 23:20:18,140 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 23:20:18,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 23:20:18,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 23:20:18,140 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 23:20:18,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 23:20:18,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 23:20:18,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 23:20:18,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 23:20:18,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 23:20:18,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 23:20:18,142 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 23:20:18,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 23:20:18,142 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 23:20:18,143 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 23:20:18,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 23:20:18,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 23:20:18,143 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 23:20:18,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 23:20:18,144 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 23:20:18,144 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 23:20:18,146 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 23:20:18,146 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_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adc521790d868e8902785ea29b51f549e45d9404af4185d7531e4ae8ae0e6ca8 [2021-11-02 23:20:18,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 23:20:18,456 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 23:20:18,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 23:20:18,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 23:20:18,463 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 23:20:18,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec1_product08.cil.c [2021-11-02 23:20:18,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/data/42382e4de/922f64a53bb0482b9df582adefb361ad/FLAGe65230804 [2021-11-02 23:20:19,089 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 23:20:19,090 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/sv-benchmarks/c/product-lines/minepump_spec1_product08.cil.c [2021-11-02 23:20:19,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/data/42382e4de/922f64a53bb0482b9df582adefb361ad/FLAGe65230804 [2021-11-02 23:20:19,383 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/data/42382e4de/922f64a53bb0482b9df582adefb361ad [2021-11-02 23:20:19,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 23:20:19,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 23:20:19,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 23:20:19,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 23:20:19,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 23:20:19,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:19,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a52c268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19, skipping insertion in model container [2021-11-02 23:20:19,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:19,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 23:20:19,449 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 23:20:19,812 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_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/sv-benchmarks/c/product-lines/minepump_spec1_product08.cil.c[14923,14936] [2021-11-02 23:20:19,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:20:19,836 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 23:20:19,896 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_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/sv-benchmarks/c/product-lines/minepump_spec1_product08.cil.c[14923,14936] [2021-11-02 23:20:19,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 23:20:19,935 INFO L208 MainTranslator]: Completed translation [2021-11-02 23:20:19,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19 WrapperNode [2021-11-02 23:20:19,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 23:20:19,937 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 23:20:19,937 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 23:20:19,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 23:20:19,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:19,967 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 23:20:20,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 23:20:20,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 23:20:20,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 23:20:20,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 23:20:20,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 23:20:20,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 23:20:20,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 23:20:20,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (1/1) ... [2021-11-02 23:20:20,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 23:20:20,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:20:20,107 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 23:20:20,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 23:20:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 23:20:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 23:20:20,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 23:20:20,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 23:20:21,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 23:20:21,067 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-11-02 23:20:21,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:21 BoogieIcfgContainer [2021-11-02 23:20:21,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 23:20:21,071 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 23:20:21,071 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 23:20:21,079 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 23:20:21,080 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:20:21,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 11:20:19" (1/3) ... [2021-11-02 23:20:21,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cdf792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:20:21, skipping insertion in model container [2021-11-02 23:20:21,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:20:21,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:20:19" (2/3) ... [2021-11-02 23:20:21,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3cdf792f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 11:20:21, skipping insertion in model container [2021-11-02 23:20:21,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 23:20:21,083 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:21" (3/3) ... [2021-11-02 23:20:21,085 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product08.cil.c [2021-11-02 23:20:21,143 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 23:20:21,143 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 23:20:21,144 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 23:20:21,144 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 23:20:21,144 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 23:20:21,144 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 23:20:21,144 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 23:20:21,144 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 23:20:21,166 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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) [2021-11-02 23:20:21,196 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-11-02 23:20:21,196 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:21,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:21,206 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 23:20:21,206 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:20:21,207 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 23:20:21,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 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) [2021-11-02 23:20:21,221 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-11-02 23:20:21,221 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:21,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:21,222 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 23:20:21,223 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:20:21,234 INFO L791 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 41#L-1true havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 58#L680true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 34#L688true main_#t~ret65 := valid_product_#res;main_~tmp~5 := main_#t~ret65;havoc main_#t~ret65; 51#L784true assume 0 != main_~tmp~5; 27#L761true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L806-1true [2021-11-02 23:20:21,235 INFO L793 eck$LassoCheckResult]: Loop: 10#L806-1true assume !false; 52#L67true assume test_~splverifierCounter~0 < 4; 60#L68true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 69#L76true assume !(0 != test_~tmp~0); 49#L76-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 4#L86true assume !(0 != test_~tmp___0~0); 11#L86-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 44#L96true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 67#L104-1true assume !(0 != ~pumpRunning~0); 57#L140true assume !(0 != ~systemActive~0); 50#L147true havoc __utac_acc__Specification1_spec__1_#t~ret66, __utac_acc__Specification1_spec__1_#t~ret67, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 17#L868-1true __utac_acc__Specification1_spec__1_#t~ret66 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret66;havoc __utac_acc__Specification1_spec__1_#t~ret66; 6#L806true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 10#L806-1true [2021-11-02 23:20:21,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:21,242 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 23:20:21,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:21,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962943282] [2021-11-02 23:20:21,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:21,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:21,491 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:21,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:21,693 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:21,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:21,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1672356212, now seen corresponding path program 1 times [2021-11-02 23:20:21,695 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:21,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899181287] [2021-11-02 23:20:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:21,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:21,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:20:21,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:20:21,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:20:21,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899181287] [2021-11-02 23:20:21,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899181287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 23:20:21,836 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 23:20:21,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 23:20:21,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481313952] [2021-11-02 23:20:21,843 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 23:20:21,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:20:21,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 23:20:21,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 23:20:21,870 INFO L87 Difference]: Start difference. First operand has 68 states, 67 states have (on average 1.5223880597014925) internal successors, (102), 67 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:20:21,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:20:21,941 INFO L93 Difference]: Finished difference Result 130 states and 180 transitions. [2021-11-02 23:20:21,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 23:20:21,943 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 180 transitions. [2021-11-02 23:20:21,947 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 82 [2021-11-02 23:20:21,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 116 states and 165 transitions. [2021-11-02 23:20:21,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2021-11-02 23:20:21,955 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2021-11-02 23:20:21,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 165 transitions. [2021-11-02 23:20:21,957 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 23:20:21,958 INFO L681 BuchiCegarLoop]: Abstraction has 116 states and 165 transitions. [2021-11-02 23:20:21,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 165 transitions. [2021-11-02 23:20:21,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-11-02 23:20:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.4210526315789473) internal successors, (162), 113 states have internal predecessors, (162), 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) [2021-11-02 23:20:21,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2021-11-02 23:20:21,994 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-11-02 23:20:21,994 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-11-02 23:20:21,994 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 23:20:21,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2021-11-02 23:20:21,997 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2021-11-02 23:20:21,997 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 23:20:21,997 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 23:20:21,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 23:20:21,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 23:20:21,999 INFO L791 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 260#L-1 havoc main_#res;havoc main_#t~ret65, main_~retValue_acc~7, main_~tmp~5;havoc main_~retValue_acc~7;havoc main_~tmp~5; 261#L680 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 254#L688 main_#t~ret65 := valid_product_#res;main_~tmp~5 := main_#t~ret65;havoc main_#t~ret65; 255#L784 assume 0 != main_~tmp~5; 243#L761 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 211#L806-1 [2021-11-02 23:20:21,999 INFO L793 eck$LassoCheckResult]: Loop: 211#L806-1 assume !false; 218#L67 assume test_~splverifierCounter~0 < 4; 271#L68 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 276#L76 assume !(0 != test_~tmp~0); 215#L76-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 207#L86 assume !(0 != test_~tmp___0~0); 208#L86-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 219#L96 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 230#L104-1 assume !(0 != ~pumpRunning~0); 237#L140 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 275#L172 assume !(0 != ~pumpRunning~0); 270#L147 havoc __utac_acc__Specification1_spec__1_#t~ret66, __utac_acc__Specification1_spec__1_#t~ret67, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~1;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 225#L868-1 __utac_acc__Specification1_spec__1_#t~ret66 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret66;havoc __utac_acc__Specification1_spec__1_#t~ret66; 210#L806 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 211#L806-1 [2021-11-02 23:20:22,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:22,000 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 23:20:22,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:22,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141734429] [2021-11-02 23:20:22,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:22,001 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:22,051 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:22,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:22,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:22,115 INFO L85 PathProgramCache]: Analyzing trace with hash -323963301, now seen corresponding path program 1 times [2021-11-02 23:20:22,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:22,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809872417] [2021-11-02 23:20:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:22,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:22,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:22,121 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:22,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:20:22,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:20:22,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1279076225, now seen corresponding path program 1 times [2021-11-02 23:20:22,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:20:22,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925783841] [2021-11-02 23:20:22,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:20:22,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:20:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:22,177 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 23:20:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 23:20:22,290 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 23:21:17,365 WARN L207 SmtUtils]: Spent 54.91 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 23:22:13,612 WARN L207 SmtUtils]: Spent 26.60 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 23:22:13,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 11:22:13 BoogieIcfgContainer [2021-11-02 23:22:13,770 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 23:22:13,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 23:22:13,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 23:22:13,771 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 23:22:13,771 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:20:21" (3/4) ... [2021-11-02 23:22:13,774 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 23:22:13,824 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 23:22:13,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 23:22:13,834 INFO L168 Benchmark]: Toolchain (without parser) took 114444.26 ms. Allocated memory was 100.7 MB in the beginning and 157.3 MB in the end (delta: 56.6 MB). Free memory was 71.4 MB in the beginning and 99.7 MB in the end (delta: -28.3 MB). Peak memory consumption was 26.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,835 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory was 58.4 MB in the beginning and 58.3 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 23:22:13,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 545.46 ms. Allocated memory is still 100.7 MB. Free memory was 71.2 MB in the beginning and 66.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.34 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 63.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,837 INFO L168 Benchmark]: Boogie Preprocessor took 42.96 ms. Allocated memory is still 100.7 MB. Free memory was 63.9 MB in the beginning and 61.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,837 INFO L168 Benchmark]: RCFGBuilder took 1006.20 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 61.8 MB in the beginning and 87.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,838 INFO L168 Benchmark]: BuchiAutomizer took 112698.90 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 87.5 MB in the beginning and 101.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 78.6 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,838 INFO L168 Benchmark]: Witness Printer took 62.78 ms. Allocated memory is still 157.3 MB. Free memory was 101.8 MB in the beginning and 99.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 23:22:13,844 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory was 58.4 MB in the beginning and 58.3 MB in the end (delta: 117.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 545.46 ms. Allocated memory is still 100.7 MB. Free memory was 71.2 MB in the beginning and 66.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.34 ms. Allocated memory is still 100.7 MB. Free memory was 66.7 MB in the beginning and 63.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.96 ms. Allocated memory is still 100.7 MB. Free memory was 63.9 MB in the beginning and 61.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1006.20 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 61.8 MB in the beginning and 87.5 MB in the end (delta: -25.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 112698.90 ms. Allocated memory was 130.0 MB in the beginning and 157.3 MB in the end (delta: 27.3 MB). Free memory was 87.5 MB in the beginning and 101.8 MB in the end (delta: -14.3 MB). Peak memory consumption was 78.6 MB. Max. memory is 16.1 GB. * Witness Printer took 62.78 ms. Allocated memory is still 157.3 MB. Free memory was 101.8 MB in the beginning and 99.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 locations. The remainder module has 114 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 112.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 112.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 114 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 88 SDslu, 80 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 66]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=356} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48d95c63=81, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3293dd3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bd6b2d3=0, NULL=356, NULL=369, NULL=0, NULL=0, retValue_acc=0, NULL=384, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41f5698d=0, NULL=375, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19bfc25d=0, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=383, NULL=368, cleanupTimeShifts=4, tmp=0, NULL=367, NULL=377, NULL=0, systemActive=1, waterLevel=1, NULL=378, NULL=0, NULL=362, retValue_acc=0, NULL=0, NULL=373, tmp___0=0, NULL=0, NULL=0, NULL=363, NULL=0, NULL=0, NULL=0, NULL=359, \result=1, NULL=357, head=0, pumpRunning=0, NULL=380, NULL=379, \result=0, NULL=371, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3789ccc6=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d199848=0, NULL=0, tmp=1, NULL=0, NULL=381, retValue_acc=1, NULL=374, NULL=376, NULL=0, NULL=0, NULL=365, NULL=0, NULL=360, tmp___2=81, NULL=0, NULL=372, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=382, NULL=361, NULL=366, tmp=0, head=0, NULL=0, NULL=0, NULL=364, NULL=0, NULL=0, NULL=358, NULL=0, NULL=0, NULL=370, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c962e1d=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L132] int pumpRunning = 0; [L133] int systemActive = 1; [L458] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L702] int cleanupTimeShifts = 4; [L825] int waterLevel = 1; [L826] int methaneLevelCritical = 0; [L775] int retValue_acc ; [L776] int tmp ; [L684] int retValue_acc ; [L687] retValue_acc = 1 [L688] return (retValue_acc); [L782] tmp = valid_product() [L784] COND TRUE \read(tmp) [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 Loop: [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND FALSE !(\read(tmp)) [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L284] systemActive = 1 [L140] COND FALSE !(\read(pumpRunning)) [L147] COND TRUE \read(systemActive) [L169] int tmp ; [L172] COND FALSE !(\read(pumpRunning)) [L799] int tmp ; [L800] int tmp___0 ; [L864] int retValue_acc ; [L867] retValue_acc = methaneLevelCritical [L868] return (retValue_acc); [L804] tmp = isMethaneLevelCritical() [L806] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 23:22:13,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ac79b0e-d5f0-4026-9c07-0cf7243e55d9/bin/uautomizer-tBqnrhUYjU/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)