./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX --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 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:33:32,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:33:32,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:33:32,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:33:32,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:33:32,545 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:33:32,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:33:32,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:33:32,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:33:32,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:33:32,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:33:32,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:33:32,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:33:32,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:33:32,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:33:32,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:33:32,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:33:32,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:33:32,571 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:33:32,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:33:32,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:33:32,579 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:33:32,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:33:32,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:33:32,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:33:32,588 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:33:32,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:33:32,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:33:32,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:33:32,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:33:32,593 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:33:32,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:33:32,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:33:32,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:33:32,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:33:32,600 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:33:32,601 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:33:32,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:33:32,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:33:32,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:33:32,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:33:32,606 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:33:32,637 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:33:32,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:33:32,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:33:32,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:33:32,639 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:33:32,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:33:32,640 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:33:32,640 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:33:32,640 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:33:32,641 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:33:32,641 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:33:32,641 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:33:32,642 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:33:32,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:33:32,642 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:33:32,643 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:33:32,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:33:32,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:33:32,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:33:32,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:33:32,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:33:32,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:33:32,645 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:33:32,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:33:32,645 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:33:32,645 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:33:32,646 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:33:32,646 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:33:32,646 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:33:32,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:33:32,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:33:32,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:33:32,649 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:33:32,649 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_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b8d1d7ceb68ac6e6630901277fde5f28b3f6a5d2baa824d9bcd68a03d4bbbff [2021-11-09 09:33:32,996 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:33:33,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:33:33,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:33:33,043 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:33:33,045 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:33:33,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-11-09 09:33:33,140 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/data/df308f81b/42b1af360812440ebc6a753b0657261f/FLAG2ac2364a5 [2021-11-09 09:33:33,757 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:33:33,757 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c [2021-11-09 09:33:33,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/data/df308f81b/42b1af360812440ebc6a753b0657261f/FLAG2ac2364a5 [2021-11-09 09:33:34,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/data/df308f81b/42b1af360812440ebc6a753b0657261f [2021-11-09 09:33:34,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:33:34,033 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:33:34,035 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:34,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:33:34,040 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:33:34,041 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d55cff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34, skipping insertion in model container [2021-11-09 09:33:34,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,052 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:33:34,100 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:33:34,502 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_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2021-11-09 09:33:34,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:34,518 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:33:34,620 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_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/sv-benchmarks/c/product-lines/minepump_spec4_product04.cil.c[16697,16710] [2021-11-09 09:33:34,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:34,662 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:33:34,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34 WrapperNode [2021-11-09 09:33:34,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:34,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:34,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:33:34,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:33:34,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:34,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:33:34,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:33:34,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:33:34,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,769 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,769 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:33:34,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:33:34,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:33:34,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:33:34,816 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (1/1) ... [2021-11-09 09:33:34,830 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:33:34,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:33:34,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:33:34,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:33:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:33:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:33:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:33:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:33:35,903 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:33:35,903 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-09 09:33:35,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:35 BoogieIcfgContainer [2021-11-09 09:33:35,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:33:35,911 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:33:35,912 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:33:35,916 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:33:35,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:33:35,923 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:33:34" (1/3) ... [2021-11-09 09:33:35,925 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e085b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:33:35, skipping insertion in model container [2021-11-09 09:33:35,925 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:33:35,926 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:34" (2/3) ... [2021-11-09 09:33:35,926 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@e085b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:33:35, skipping insertion in model container [2021-11-09 09:33:35,926 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:33:35,927 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:35" (3/3) ... [2021-11-09 09:33:35,928 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product04.cil.c [2021-11-09 09:33:35,983 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:33:35,983 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:33:35,983 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:33:35,983 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:33:35,983 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:33:35,984 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:33:35,984 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:33:35,984 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:33:36,009 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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) [2021-11-09 09:33:36,044 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-11-09 09:33:36,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:36,045 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:36,055 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:33:36,055 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:36,055 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:33:36,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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) [2021-11-09 09:33:36,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-11-09 09:33:36,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:36,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:36,072 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:33:36,072 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:36,078 INFO L791 eck$LassoCheckResult]: Stem: 48#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);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(75, #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(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 39#L176true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 15#L184true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 50#L140true assume 0 != main_~tmp~0; 40#L113true havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 18#L861-1true [2021-11-09 09:33:36,079 INFO L793 eck$LassoCheckResult]: Loop: 18#L861-1true assume !false; 36#L420true assume test_~splverifierCounter~0 < 4; 25#L421true test_~tmp~1 := test_#t~nondet36;havoc test_#t~nondet36; 13#L429true assume !(0 != test_~tmp~1); 53#L429-1true test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 51#L439true assume !(0 != test_~tmp___0~0); 38#L439-1true test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 5#L449true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 9#L457-1true assume !(0 != ~pumpRunning~0); 17#L286true assume !(0 != ~systemActive~0); 47#L293true havoc __utac_acc__Specification4_spec__1_#t~ret75, __utac_acc__Specification4_spec__1_#t~ret76, __utac_acc__Specification4_spec__1_~tmp~5, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~5;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 19#L268true __utac_acc__Specification4_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~5 := __utac_acc__Specification4_spec__1_#t~ret75;havoc __utac_acc__Specification4_spec__1_#t~ret75; 28#L861true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5); 18#L861-1true [2021-11-09 09:33:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:36,087 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 09:33:36,099 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:36,099 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982107727] [2021-11-09 09:33:36,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:36,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:36,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:36,412 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:36,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:36,591 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:36,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:36,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-11-09 09:33:36,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:36,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150286221] [2021-11-09 09:33:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:36,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:33:36,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:33:36,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:33:36,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150286221] [2021-11-09 09:33:36,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150286221] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:33:36,684 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:33:36,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:33:36,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294856542] [2021-11-09 09:33:36,695 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 09:33:36,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:33:36,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:33:36,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:33:36,723 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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) [2021-11-09 09:33:36,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:33:36,834 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-11-09 09:33:36,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:33:36,837 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-11-09 09:33:36,852 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-11-09 09:33:36,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-11-09 09:33:36,859 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-11-09 09:33:36,860 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-11-09 09:33:36,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-11-09 09:33:36,866 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:33:36,867 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-11-09 09:33:36,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-11-09 09:33:36,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-11-09 09:33:36,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4) internal successors, (126), 89 states have internal predecessors, (126), 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) [2021-11-09 09:33:36,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-11-09 09:33:36,920 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-11-09 09:33:36,920 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-11-09 09:33:36,921 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:33:36,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-11-09 09:33:36,927 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-11-09 09:33:36,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:33:36,928 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:33:36,931 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:33:36,933 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:36,933 INFO L791 eck$LassoCheckResult]: Stem: 224#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~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string12.base, #t~string12.offset, 1);call write~init~int(77, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(101, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(116, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(104, #t~string12.base, 4 + #t~string12.offset, 1);call write~init~int(58, #t~string12.base, 5 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 6 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string14.base, #t~string14.offset, 1);call write~init~int(82, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(73, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(84, #t~string14.base, 3 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 4 + #t~string14.offset, 1);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(75, #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(2);call write~init~int(41, #t~string18.base, #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 1 + #t~string18.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(13);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string27.base, #t~string27.offset, 1);call write~init~int(80, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(117, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(109, #t~string27.base, 3 + #t~string27.offset, 1);call write~init~int(112, #t~string27.base, 4 + #t~string27.offset, 1);call write~init~int(58, #t~string27.base, 5 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 6 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string33.base, #t~string33.offset, 1);call write~init~int(32, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 2 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string35.base, #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 1 + #t~string35.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 217#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 218#L176 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 195#L184 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 196#L140 assume 0 != main_~tmp~0; 220#L113 havoc test_#t~nondet36, test_#t~nondet37, test_#t~nondet38, test_#t~nondet39, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 198#L861-1 [2021-11-09 09:33:36,934 INFO L793 eck$LassoCheckResult]: Loop: 198#L861-1 assume !false; 199#L420 assume test_~splverifierCounter~0 < 4; 216#L421 test_~tmp~1 := test_#t~nondet36;havoc test_#t~nondet36; 239#L429 assume !(0 != test_~tmp~1); 237#L429-1 test_~tmp___0~0 := test_#t~nondet37;havoc test_#t~nondet37; 225#L439 assume !(0 != test_~tmp___0~0); 219#L439-1 test_~tmp___2~0 := test_#t~nondet38;havoc test_#t~nondet38; 173#L449 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 174#L457-1 assume !(0 != ~pumpRunning~0); 183#L286 assume 0 != ~systemActive~0; 197#L293 havoc __utac_acc__Specification4_spec__1_#t~ret75, __utac_acc__Specification4_spec__1_#t~ret76, __utac_acc__Specification4_spec__1_~tmp~5, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~5;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 200#L268 __utac_acc__Specification4_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~5 := __utac_acc__Specification4_spec__1_#t~ret75;havoc __utac_acc__Specification4_spec__1_#t~ret75; 201#L861 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~5); 198#L861-1 [2021-11-09 09:33:36,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:36,935 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 09:33:36,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:36,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294151376] [2021-11-09 09:33:36,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:36,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:37,039 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:37,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:37,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:37,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-11-09 09:33:37,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:37,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356743901] [2021-11-09 09:33:37,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:37,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:37,169 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:37,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:37,193 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:37,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:37,199 INFO L85 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-11-09 09:33:37,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:37,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255394889] [2021-11-09 09:33:37,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:37,202 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:37,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:37,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:37,398 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:34:49,348 WARN L207 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 09:36:02,484 WARN L207 SmtUtils]: Spent 36.56 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 09:36:02,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:36:02 BoogieIcfgContainer [2021-11-09 09:36:02,683 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:36:02,683 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:36:02,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:36:02,684 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:36:02,684 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:35" (3/4) ... [2021-11-09 09:36:02,700 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:36:02,795 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:36:02,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:36:02,799 INFO L168 Benchmark]: Toolchain (without parser) took 148763.69 ms. Allocated memory was 113.2 MB in the beginning and 178.3 MB in the end (delta: 65.0 MB). Free memory was 75.4 MB in the beginning and 50.8 MB in the end (delta: 24.6 MB). Peak memory consumption was 88.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,800 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:36:02,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 628.80 ms. Allocated memory is still 113.2 MB. Free memory was 75.2 MB in the beginning and 75.7 MB in the end (delta: -487.3 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.84 ms. Allocated memory is still 113.2 MB. Free memory was 75.7 MB in the beginning and 73.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,803 INFO L168 Benchmark]: Boogie Preprocessor took 62.01 ms. Allocated memory is still 113.2 MB. Free memory was 73.1 MB in the beginning and 71.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,804 INFO L168 Benchmark]: RCFGBuilder took 1091.59 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 71.1 MB in the beginning and 97.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,806 INFO L168 Benchmark]: BuchiAutomizer took 146771.23 ms. Allocated memory was 138.4 MB in the beginning and 178.3 MB in the end (delta: 39.8 MB). Free memory was 97.2 MB in the beginning and 52.9 MB in the end (delta: 44.3 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,807 INFO L168 Benchmark]: Witness Printer took 112.65 ms. Allocated memory is still 178.3 MB. Free memory was 52.9 MB in the beginning and 50.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:36:02,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 113.2 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 628.80 ms. Allocated memory is still 113.2 MB. Free memory was 75.2 MB in the beginning and 75.7 MB in the end (delta: -487.3 kB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.84 ms. Allocated memory is still 113.2 MB. Free memory was 75.7 MB in the beginning and 73.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.01 ms. Allocated memory is still 113.2 MB. Free memory was 73.1 MB in the beginning and 71.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1091.59 ms. Allocated memory was 113.2 MB in the beginning and 138.4 MB in the end (delta: 25.2 MB). Free memory was 71.1 MB in the beginning and 97.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 26.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 146771.23 ms. Allocated memory was 138.4 MB in the beginning and 178.3 MB in the end (delta: 39.8 MB). Free memory was 97.2 MB in the beginning and 52.9 MB in the end (delta: 44.3 MB). Peak memory consumption was 94.0 MB. Max. memory is 16.1 GB. * Witness Printer took 112.65 ms. Allocated memory is still 178.3 MB. Free memory was 52.9 MB in the beginning and 50.8 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 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 146.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 146.3s. 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 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 62 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: 419]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18449} State at position 1 is {NULL=0, NULL=0, NULL=18466, NULL=0, retValue_acc=0, NULL=18449, NULL=18474, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bd27ed7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ae54256=0, NULL=0, NULL=0, NULL=18472, NULL=18450, methaneLevelCritical=0, NULL=0, NULL=0, NULL=18459, NULL=18473, NULL=0, tmp___1=0, NULL=18455, NULL=18461, NULL=0, NULL=0, tmp___0=0, cleanupTimeShifts=4, tmp=0, NULL=18460, NULL=18463, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a6881d1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e68ff52=72, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@385d2f9c=0, NULL=18468, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@560647f3=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=18477, \result=1, NULL=0, NULL=18451, NULL=0, NULL=18464, NULL=0, tmp___0=0, NULL=18470, NULL=0, NULL=18456, \result=1, NULL=18457, head=0, pumpRunning=0, tmp=1, \result=0, NULL=18453, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@391fc9bf=0, NULL=0, NULL=18454, NULL=18452, NULL=18471, NULL=0, NULL=0, tmp=1, NULL=18469, retValue_acc=1, tmp___2=72, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=18467, NULL=18476, NULL=18458, head=0, NULL=18462, NULL=18465, NULL=0, NULL=18475} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L193] int waterLevel = 1; [L194] int methaneLevelCritical = 0; [L278] int pumpRunning = 0; [L279] int systemActive = 1; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L180] int retValue_acc ; [L183] retValue_acc = 1 [L184] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L410] int splverifierCounter ; [L411] int tmp ; [L412] int tmp___0 ; [L413] int tmp___1 ; [L414] int tmp___2 ; [L417] splverifierCounter = 0 Loop: [L419] COND TRUE 1 [L421] COND TRUE splverifierCounter < 4 [L427] tmp = __VERIFIER_nondet_int() [L429] COND FALSE !(\read(tmp)) [L437] tmp___0 = __VERIFIER_nondet_int() [L439] COND FALSE !(\read(tmp___0)) [L447] tmp___2 = __VERIFIER_nondet_int() [L449] COND TRUE \read(tmp___2) [L404] systemActive = 1 [L286] COND FALSE !(\read(pumpRunning)) [L293] COND TRUE \read(systemActive) [L854] int tmp ; [L855] int tmp___0 ; [L264] int retValue_acc ; [L267] retValue_acc = waterLevel [L268] return (retValue_acc); [L859] tmp = getWaterLevel() [L861] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:36:02,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8169483-e8aa-4ecb-b1a1-1d073610e2a8/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)