./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product21.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_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/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_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/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_7261e93a-0597-4021-a29b-ffc4a14f713d/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 0e76649cac6515f08270152166e80012375eb96b6ec0655501fc67165d9b0051 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:21:47,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:21:47,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:21:47,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:21:47,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:21:47,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:21:47,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:21:47,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:21:47,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:21:47,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:21:47,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:21:47,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:21:47,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:21:47,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:21:47,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:21:47,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:21:47,887 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:21:47,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:21:47,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:21:47,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:21:47,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:21:47,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:21:47,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:21:47,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:21:47,924 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:21:47,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:21:47,925 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:21:47,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:21:47,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:21:47,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:21:47,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:21:47,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:21:47,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:21:47,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:21:47,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:21:47,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:21:47,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:21:47,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:21:47,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:21:47,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:21:47,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:21:47,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:21:47,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:21:47,987 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:21:47,987 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:21:47,987 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:21:47,989 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:21:47,989 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:21:47,993 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:21:47,994 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:21:47,994 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:21:47,994 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:21:47,996 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:21:47,996 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:21:47,996 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:21:47,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:21:47,997 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:21:47,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:21:47,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:21:47,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:21:47,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:21:47,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:21:47,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:21:47,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:21:47,999 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:21:47,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:21:48,000 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:21:48,000 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:21:48,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:21:48,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:21:48,001 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:21:48,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:21:48,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:21:48,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:21:48,003 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:21:48,003 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_7261e93a-0597-4021-a29b-ffc4a14f713d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e76649cac6515f08270152166e80012375eb96b6ec0655501fc67165d9b0051 [2021-11-02 22:21:48,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:21:48,359 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:21:48,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:21:48,365 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:21:48,367 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:21:48,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2021-11-02 22:21:48,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/data/800fba807/233ad630ddce480f85c50402694a92f1/FLAG0712e1640 [2021-11-02 22:21:49,165 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:21:49,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2021-11-02 22:21:49,198 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/data/800fba807/233ad630ddce480f85c50402694a92f1/FLAG0712e1640 [2021-11-02 22:21:49,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/data/800fba807/233ad630ddce480f85c50402694a92f1 [2021-11-02 22:21:49,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:21:49,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:21:49,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:21:49,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:21:49,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:21:49,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:21:49" (1/1) ... [2021-11-02 22:21:49,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2802af83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:49, skipping insertion in model container [2021-11-02 22:21:49,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:21:49" (1/1) ... [2021-11-02 22:21:49,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:21:49,499 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:21:49,897 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_7261e93a-0597-4021-a29b-ffc4a14f713d/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c[17902,17915] [2021-11-02 22:21:49,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:21:49,913 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:21:50,026 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_7261e93a-0597-4021-a29b-ffc4a14f713d/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c[17902,17915] [2021-11-02 22:21:50,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:21:50,048 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:21:50,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50 WrapperNode [2021-11-02 22:21:50,049 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:21:50,050 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:21:50,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:21:50,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:21:50,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,094 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:21:50,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:21:50,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:21:50,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:21:50,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,164 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,191 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:21:50,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:21:50,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:21:50,198 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:21:50,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (1/1) ... [2021-11-02 22:21:50,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:21:50,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:21:50,247 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:21:50,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:21:50,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:21:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:21:50,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:21:50,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:21:51,563 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:21:51,563 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-11-02 22:21:51,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:21:51 BoogieIcfgContainer [2021-11-02 22:21:51,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:21:51,570 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:21:51,571 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:21:51,577 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:21:51,578 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:21:51,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:21:49" (1/3) ... [2021-11-02 22:21:51,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c80081d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:21:51, skipping insertion in model container [2021-11-02 22:21:51,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:21:51,581 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:21:50" (2/3) ... [2021-11-02 22:21:51,581 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c80081d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:21:51, skipping insertion in model container [2021-11-02 22:21:51,581 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:21:51,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:21:51" (3/3) ... [2021-11-02 22:21:51,583 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product21.cil.c [2021-11-02 22:21:51,648 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:21:51,648 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:21:51,648 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:21:51,648 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:21:51,649 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:21:51,649 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:21:51,649 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:21:51,649 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:21:51,677 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 22:21:51,720 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-11-02 22:21:51,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:21:51,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:21:51,733 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:21:51,733 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:51,733 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:21:51,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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 22:21:51,759 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-11-02 22:21:51,759 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:21:51,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:21:51,761 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:21:51,761 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:51,774 INFO L791 eck$LassoCheckResult]: Stem: 91#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 24#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 22#L664true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 82#L672true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 58#L535true assume 0 != main_~tmp~4; 20#L508true havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 41#L427-1true [2021-11-02 22:21:51,775 INFO L793 eck$LassoCheckResult]: Loop: 41#L427-1true assume !false; 72#L688true assume test_~splverifierCounter~0 < 4; 55#L689true test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 21#L697true assume !(0 != test_~tmp~5); 13#L697-1true test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 52#L707true assume !(0 != test_~tmp___0~1); 44#L707-1true test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 14#L717true assume 0 != test_~tmp___2~0; 32#L723-2true assume !(0 != ~pumpRunning~0); 15#L751true assume !(0 != ~systemActive~0); 70#L758true havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 61#L596-1true __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 59#L427true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 41#L427-1true [2021-11-02 22:21:51,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:51,784 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:21:51,796 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:51,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566386747] [2021-11-02 22:21:51,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:51,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:52,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:52,183 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:21:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:52,414 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:21:52,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:52,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2021-11-02 22:21:52,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:52,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368373009] [2021-11-02 22:21:52,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:52,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:52,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:52,445 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:21:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:52,462 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:21:52,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:52,467 INFO L85 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2021-11-02 22:21:52,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:52,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202339407] [2021-11-02 22:21:52,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:52,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:52,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:21:52,687 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 22:21:52,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:21:52,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202339407] [2021-11-02 22:21:52,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202339407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:21:52,690 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:21:52,690 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-02 22:21:52,691 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404714555] [2021-11-02 22:21:52,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:21:52,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:21:52,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:21:52,845 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:21:53,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:21:53,090 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2021-11-02 22:21:53,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:21:53,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2021-11-02 22:21:53,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-02 22:21:53,112 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-11-02 22:21:53,113 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-11-02 22:21:53,114 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-11-02 22:21:53,115 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-11-02 22:21:53,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:21:53,116 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-02 22:21:53,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-11-02 22:21:53,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-02 22:21:53,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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 22:21:53,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-11-02 22:21:53,180 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-02 22:21:53,180 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-02 22:21:53,180 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:21:53,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-11-02 22:21:53,182 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-02 22:21:53,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:21:53,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:21:53,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:21:53,183 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:21:53,183 INFO L791 eck$LassoCheckResult]: Stem: 313#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 300#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 295#L664 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 296#L672 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 265#L535 assume 0 != main_~tmp~4; 266#L508 havoc test_#t~nondet56, test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 270#L427-1 [2021-11-02 22:21:53,183 INFO L793 eck$LassoCheckResult]: Loop: 270#L427-1 assume !false; 289#L688 assume test_~splverifierCounter~0 < 4; 256#L689 test_~tmp~5 := test_#t~nondet56;havoc test_#t~nondet56; 257#L697 assume !(0 != test_~tmp~5); 262#L697-1 test_~tmp___0~1 := test_#t~nondet57;havoc test_#t~nondet57; 248#L707 assume !(0 != test_~tmp___0~1); 222#L707-1 test_~tmp___2~0 := test_#t~nondet58;havoc test_#t~nondet58; 223#L717 assume 0 != test_~tmp___2~0; 267#L723-2 assume !(0 != ~pumpRunning~0); 272#L751 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 273#L809 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret60, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 311#L783-1 assume !(0 != ~pumpRunning~0); 252#L758 havoc __utac_acc__Specification1_spec__1_#t~ret42, __utac_acc__Specification1_spec__1_#t~ret43, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~4;havoc isMethaneLevelCritical_~retValue_acc~4;isMethaneLevelCritical_~retValue_acc~4 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~4; 271#L596-1 __utac_acc__Specification1_spec__1_#t~ret42 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret42;havoc __utac_acc__Specification1_spec__1_#t~ret42; 269#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 270#L427-1 [2021-11-02 22:21:53,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:53,184 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:21:53,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:53,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621931955] [2021-11-02 22:21:53,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:53,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:53,252 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:21:53,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:53,358 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:21:53,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:53,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2021-11-02 22:21:53,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:53,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879604408] [2021-11-02 22:21:53,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:53,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:53,376 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:21:53,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:53,387 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:21:53,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:21:53,394 INFO L85 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2021-11-02 22:21:53,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:21:53,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323490576] [2021-11-02 22:21:53,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:21:53,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:21:53,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:53,493 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:21:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:21:53,613 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:23:04,760 WARN L207 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:24:15,344 WARN L207 SmtUtils]: Spent 35.10 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:24:15,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:24:15 BoogieIcfgContainer [2021-11-02 22:24:15,523 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:24:15,524 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:24:15,524 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:24:15,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:24:15,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:21:51" (3/4) ... [2021-11-02 22:24:15,529 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:24:15,598 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:24:15,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:24:15,608 INFO L168 Benchmark]: Toolchain (without parser) took 146196.83 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 67.9 MB in the beginning and 86.3 MB in the end (delta: -18.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,609 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 84.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:24:15,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.49 ms. Allocated memory is still 111.1 MB. Free memory was 67.6 MB in the beginning and 77.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.73 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 74.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,611 INFO L168 Benchmark]: Boogie Preprocessor took 47.91 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 71.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,612 INFO L168 Benchmark]: RCFGBuilder took 1369.30 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 71.7 MB in the beginning and 100.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,613 INFO L168 Benchmark]: BuchiAutomizer took 143953.17 ms. Allocated memory is still 134.2 MB. Free memory was 100.5 MB in the beginning and 88.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,615 INFO L168 Benchmark]: Witness Printer took 82.24 ms. Allocated memory is still 134.2 MB. Free memory was 88.3 MB in the beginning and 86.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:24:15,620 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 111.1 MB. Free memory is still 84.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 637.49 ms. Allocated memory is still 111.1 MB. Free memory was 67.6 MB in the beginning and 77.6 MB in the end (delta: -10.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.73 ms. Allocated memory is still 111.1 MB. Free memory was 77.6 MB in the beginning and 74.2 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.91 ms. Allocated memory is still 111.1 MB. Free memory was 74.2 MB in the beginning and 71.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1369.30 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 71.7 MB in the beginning and 100.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 44.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143953.17 ms. Allocated memory is still 134.2 MB. Free memory was 100.5 MB in the beginning and 88.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 75.1 MB. Max. memory is 16.1 GB. * Witness Printer took 82.24 ms. Allocated memory is still 134.2 MB. Free memory was 88.3 MB in the beginning and 86.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 143.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 547 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time 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: 687]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13616} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75d6bcfe=0, NULL=0, NULL=0, NULL=0, NULL=13616, NULL=13631, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7074f629=0, NULL=13633, NULL=13639, NULL=13628, methaneLevelCritical=0, NULL=13634, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19de58aa=0, NULL=13642, tmp=0, NULL=0, NULL=0, NULL=13643, tmp=0, tmp___1=0, NULL=13617, NULL=0, NULL=0, tmp___0=0, NULL=13626, NULL=13637, NULL=13630, cleanupTimeShifts=4, NULL=13619, NULL=13622, NULL=13636, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=13624, \result=1, head=0, pumpRunning=0, \result=0, NULL=13640, NULL=13641, tmp=1, NULL=0, NULL=13635, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d4a4bbf=0, tmp=0, NULL=0, NULL=13632, NULL=13618, NULL=0, NULL=0, retValue_acc=1, NULL=0, NULL=13625, NULL=0, tmp___2=61, NULL=13627, tmp___0=0, NULL=13621, splverifierCounter=0, NULL=0, \result=0, NULL=13623, NULL=13644, NULL=13629, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3639c2fa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e2c4010=61, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fd585a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6cdbb4fc=0, head=0, NULL=0, NULL=0, NULL=13638, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@632233de=0, NULL=13620, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L445] int cleanupTimeShifts = 4; [L553] int waterLevel = 1; [L554] int methaneLevelCritical = 0; [L744] int pumpRunning = 0; [L745] int systemActive = 1; [L526] int retValue_acc ; [L527] int tmp ; [L668] int retValue_acc ; [L671] retValue_acc = 1 [L672] return (retValue_acc); [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L678] int splverifierCounter ; [L679] int tmp ; [L680] int tmp___0 ; [L681] int tmp___1 ; [L682] int tmp___2 ; [L685] splverifierCounter = 0 Loop: [L687] COND TRUE 1 [L689] COND TRUE splverifierCounter < 4 [L695] tmp = __VERIFIER_nondet_int() [L697] COND FALSE !(\read(tmp)) [L705] tmp___0 = __VERIFIER_nondet_int() [L707] COND FALSE !(\read(tmp___0)) [L715] tmp___2 = __VERIFIER_nondet_int() [L717] COND TRUE \read(tmp___2) [L751] COND FALSE !(\read(pumpRunning)) [L758] COND TRUE \read(systemActive) [L806] int tmp ; [L809] COND FALSE !(\read(pumpRunning)) [L780] int tmp ; [L783] COND FALSE !(\read(pumpRunning)) [L420] int tmp ; [L421] int tmp___0 ; [L592] int retValue_acc ; [L595] retValue_acc = methaneLevelCritical [L596] return (retValue_acc); [L425] tmp = isMethaneLevelCritical() [L427] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:24:15,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7261e93a-0597-4021-a29b-ffc4a14f713d/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)