./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:23,556 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:23,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:23,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:23,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:23,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:23,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:23,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:23,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:23,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:23,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:23,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:23,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:23,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:23,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:23,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:23,614 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:23,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:23,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:23,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:23,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:23,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:23,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:23,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:23,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:23,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:23,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:23,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:23,639 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:23,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:23,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:23,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:23,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:23,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:23,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:23,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:23,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:23,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:23,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:23,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:23,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:23,650 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:23,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:23,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:23,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:23,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:23,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:23,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:23,674 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:23,674 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:23,674 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:23,675 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:23,675 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:23,675 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:23,675 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:23,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:23,676 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:23,676 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:23,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:23,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:23,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:23,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:23,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:23,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:23,677 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:23,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:23,678 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:23,678 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:23,678 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:23,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:23,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:23,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:23,679 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:23,680 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:23,680 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b1a2a4f6154f8b607411cb85c1a9c20d409d0ca16407a9f3bb2fc8f7ede01236 [2022-02-21 04:15:23,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:23,895 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:23,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:23,899 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:23,900 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:23,901 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2022-02-21 04:15:23,962 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dead1e557/e3ceec86c2174591ad9b4426cc825f56/FLAG6c43a2e7b [2022-02-21 04:15:24,418 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:24,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c [2022-02-21 04:15:24,431 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dead1e557/e3ceec86c2174591ad9b4426cc825f56/FLAG6c43a2e7b [2022-02-21 04:15:24,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dead1e557/e3ceec86c2174591ad9b4426cc825f56 [2022-02-21 04:15:24,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:24,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:24,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:24,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:24,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:24,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:24,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f6c7d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24, skipping insertion in model container [2022-02-21 04:15:24,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:24,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:24,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:24,757 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2022-02-21 04:15:24,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:24,827 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:24,902 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product34.cil.c[12584,12597] [2022-02-21 04:15:24,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:24,951 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:24,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24 WrapperNode [2022-02-21 04:15:24,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:24,954 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:24,954 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:24,954 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:24,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:24,989 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,033 INFO L137 Inliner]: procedures = 53, calls = 150, calls flagged for inlining = 47, calls inlined = 48, statements flattened = 392 [2022-02-21 04:15:25,034 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:25,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:25,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:25,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:25,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:25,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:25,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:25,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:25,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (1/1) ... [2022-02-21 04:15:25,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:25,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:25,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:15:25,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:25,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:25,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:25,192 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:25,193 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:25,538 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:25,545 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:25,546 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:25,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:25 BoogieIcfgContainer [2022-02-21 04:15:25,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:25,550 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:25,550 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:25,553 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:25,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:25,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:24" (1/3) ... [2022-02-21 04:15:25,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a5f0a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:25, skipping insertion in model container [2022-02-21 04:15:25,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:25,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:24" (2/3) ... [2022-02-21 04:15:25,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a5f0a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:25, skipping insertion in model container [2022-02-21 04:15:25,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:25,556 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:25" (3/3) ... [2022-02-21 04:15:25,556 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product34.cil.c [2022-02-21 04:15:25,608 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:25,609 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:25,609 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:25,609 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:25,609 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:25,609 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:25,610 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:25,610 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:25,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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) [2022-02-21 04:15:25,661 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:15:25,664 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:25,664 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:25,669 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:25,669 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:25,670 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:25,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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) [2022-02-21 04:15:25,696 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2022-02-21 04:15:25,701 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:25,702 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:25,703 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:25,703 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:25,713 INFO L791 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 38#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 61#L908true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 106#L901true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 95#L916true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 49#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 91#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L639-2true [2022-02-21 04:15:25,714 INFO L793 eck$LassoCheckResult]: Loop: 24#L639-2true assume !false; 30#L640true assume test_~splverifierCounter~0#1 < 4; 42#L641true test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 52#L649true assume !(0 != test_~tmp~4#1); 99#L649-2true test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 25#L659true assume !(0 != test_~tmp___0~0#1); 63#L659-2true test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 89#L669true assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 107#L856true assume { :end_inline_startSystem } true; 55#L677-2true assume { :begin_inline_timeShift } true; 65#L707true assume !(0 != ~pumpRunning~0); 93#L707-2true assume !(0 != ~systemActive~0); 21#L714-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 58#L577true __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 26#L868true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 72#L868-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 19#L724true assume { :end_inline_timeShift } true; 24#L639-2true [2022-02-21 04:15:25,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:25,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:25,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:25,730 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572115191] [2022-02-21 04:15:25,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:25,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:25,892 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:25,947 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:25,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:25,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1295146433, now seen corresponding path program 1 times [2022-02-21 04:15:25,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:25,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277078361] [2022-02-21 04:15:25,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:25,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:25,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:26,048 INFO L290 TraceCheckUtils]: 0: Hoare triple {112#true} assume !false; {112#true} is VALID [2022-02-21 04:15:26,049 INFO L290 TraceCheckUtils]: 1: Hoare triple {112#true} assume test_~splverifierCounter~0#1 < 4; {112#true} is VALID [2022-02-21 04:15:26,049 INFO L290 TraceCheckUtils]: 2: Hoare triple {112#true} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {112#true} is VALID [2022-02-21 04:15:26,049 INFO L290 TraceCheckUtils]: 3: Hoare triple {112#true} assume !(0 != test_~tmp~4#1); {112#true} is VALID [2022-02-21 04:15:26,050 INFO L290 TraceCheckUtils]: 4: Hoare triple {112#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {112#true} is VALID [2022-02-21 04:15:26,050 INFO L290 TraceCheckUtils]: 5: Hoare triple {112#true} assume !(0 != test_~tmp___0~0#1); {112#true} is VALID [2022-02-21 04:15:26,050 INFO L290 TraceCheckUtils]: 6: Hoare triple {112#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {112#true} is VALID [2022-02-21 04:15:26,051 INFO L290 TraceCheckUtils]: 7: Hoare triple {112#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {114#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,053 INFO L290 TraceCheckUtils]: 8: Hoare triple {114#(<= 1 ~systemActive~0)} assume { :end_inline_startSystem } true; {114#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,053 INFO L290 TraceCheckUtils]: 9: Hoare triple {114#(<= 1 ~systemActive~0)} assume { :begin_inline_timeShift } true; {114#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,054 INFO L290 TraceCheckUtils]: 10: Hoare triple {114#(<= 1 ~systemActive~0)} assume !(0 != ~pumpRunning~0); {114#(<= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:26,055 INFO L290 TraceCheckUtils]: 11: Hoare triple {114#(<= 1 ~systemActive~0)} assume !(0 != ~systemActive~0); {113#false} is VALID [2022-02-21 04:15:26,055 INFO L290 TraceCheckUtils]: 12: Hoare triple {113#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {113#false} is VALID [2022-02-21 04:15:26,055 INFO L290 TraceCheckUtils]: 13: Hoare triple {113#false} __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; {113#false} is VALID [2022-02-21 04:15:26,056 INFO L290 TraceCheckUtils]: 14: Hoare triple {113#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {113#false} is VALID [2022-02-21 04:15:26,056 INFO L290 TraceCheckUtils]: 15: Hoare triple {113#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {113#false} is VALID [2022-02-21 04:15:26,056 INFO L290 TraceCheckUtils]: 16: Hoare triple {113#false} assume { :end_inline_timeShift } true; {113#false} is VALID [2022-02-21 04:15:26,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:26,058 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:26,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277078361] [2022-02-21 04:15:26,058 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277078361] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:26,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:26,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:26,059 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020982684] [2022-02-21 04:15:26,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:26,067 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:26,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:26,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:26,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:26,103 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.380952380952381) internal successors, (145), 105 states have internal predecessors, (145), 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 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-02-21 04:15:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:26,276 INFO L93 Difference]: Finished difference Result 103 states and 132 transitions. [2022-02-21 04:15:26,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:26,278 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-02-21 04:15:26,303 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:26,308 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 103 states and 132 transitions. [2022-02-21 04:15:26,317 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-02-21 04:15:26,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 103 states to 93 states and 121 transitions. [2022-02-21 04:15:26,324 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2022-02-21 04:15:26,324 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 93 [2022-02-21 04:15:26,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 93 states and 121 transitions. [2022-02-21 04:15:26,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:26,325 INFO L681 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2022-02-21 04:15:26,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states and 121 transitions. [2022-02-21 04:15:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-02-21 04:15:26,346 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:26,347 INFO L82 GeneralOperation]: Start isEquivalent. First operand 93 states and 121 transitions. Second operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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) [2022-02-21 04:15:26,349 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states and 121 transitions. Second operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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) [2022-02-21 04:15:26,350 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. Second operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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) [2022-02-21 04:15:26,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:26,356 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2022-02-21 04:15:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2022-02-21 04:15:26,357 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:26,358 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:26,359 INFO L74 IsIncluded]: Start isIncluded. First operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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 93 states and 121 transitions. [2022-02-21 04:15:26,361 INFO L87 Difference]: Start difference. First operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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 93 states and 121 transitions. [2022-02-21 04:15:26,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:26,366 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2022-02-21 04:15:26,367 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2022-02-21 04:15:26,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:26,369 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:26,369 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:26,369 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:26,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 92 states have internal predecessors, (121), 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) [2022-02-21 04:15:26,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 121 transitions. [2022-02-21 04:15:26,373 INFO L704 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2022-02-21 04:15:26,373 INFO L587 BuchiCegarLoop]: Abstraction has 93 states and 121 transitions. [2022-02-21 04:15:26,373 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:26,373 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 93 states and 121 transitions. [2022-02-21 04:15:26,375 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2022-02-21 04:15:26,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:26,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:26,376 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,376 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,376 INFO L791 eck$LassoCheckResult]: Stem: 306#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 294#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 232#L908 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 233#L901 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 303#L916 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 304#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 302#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 265#L639-2 [2022-02-21 04:15:26,376 INFO L793 eck$LassoCheckResult]: Loop: 265#L639-2 assume !false; 273#L640 assume test_~splverifierCounter~0#1 < 4; 284#L641 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 297#L649 assume !(0 != test_~tmp~4#1); 308#L649-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 272#L659 assume !(0 != test_~tmp___0~0#1); 236#L659-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 237#L669 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 300#L856 assume { :end_inline_startSystem } true; 239#L677-2 assume { :begin_inline_timeShift } true; 240#L707 assume !(0 != ~pumpRunning~0); 241#L707-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 218#L739 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 219#L731-1 assume { :end_inline_processEnvironment__wrappee__base } true; 264#L739-1 assume { :end_inline_processEnvironment } true; 268#L714-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 269#L577 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 276#L868 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 260#L868-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 261#L724 assume { :end_inline_timeShift } true; 265#L639-2 [2022-02-21 04:15:26,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:26,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446137315] [2022-02-21 04:15:26,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,402 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,438 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:26,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,451 INFO L85 PathProgramCache]: Analyzing trace with hash -897325560, now seen corresponding path program 1 times [2022-02-21 04:15:26,451 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,451 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725309123] [2022-02-21 04:15:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:26,478 INFO L290 TraceCheckUtils]: 0: Hoare triple {502#true} assume !false; {502#true} is VALID [2022-02-21 04:15:26,479 INFO L290 TraceCheckUtils]: 1: Hoare triple {502#true} assume test_~splverifierCounter~0#1 < 4; {502#true} is VALID [2022-02-21 04:15:26,479 INFO L290 TraceCheckUtils]: 2: Hoare triple {502#true} test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; {502#true} is VALID [2022-02-21 04:15:26,479 INFO L290 TraceCheckUtils]: 3: Hoare triple {502#true} assume !(0 != test_~tmp~4#1); {502#true} is VALID [2022-02-21 04:15:26,480 INFO L290 TraceCheckUtils]: 4: Hoare triple {502#true} test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; {502#true} is VALID [2022-02-21 04:15:26,480 INFO L290 TraceCheckUtils]: 5: Hoare triple {502#true} assume !(0 != test_~tmp___0~0#1); {502#true} is VALID [2022-02-21 04:15:26,480 INFO L290 TraceCheckUtils]: 6: Hoare triple {502#true} test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; {502#true} is VALID [2022-02-21 04:15:26,481 INFO L290 TraceCheckUtils]: 7: Hoare triple {502#true} assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; {502#true} is VALID [2022-02-21 04:15:26,481 INFO L290 TraceCheckUtils]: 8: Hoare triple {502#true} assume { :end_inline_startSystem } true; {502#true} is VALID [2022-02-21 04:15:26,481 INFO L290 TraceCheckUtils]: 9: Hoare triple {502#true} assume { :begin_inline_timeShift } true; {502#true} is VALID [2022-02-21 04:15:26,482 INFO L290 TraceCheckUtils]: 10: Hoare triple {502#true} assume !(0 != ~pumpRunning~0); {504#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:26,482 INFO L290 TraceCheckUtils]: 11: Hoare triple {504#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; {504#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:26,482 INFO L290 TraceCheckUtils]: 12: Hoare triple {504#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {503#false} is VALID [2022-02-21 04:15:26,499 INFO L290 TraceCheckUtils]: 13: Hoare triple {503#false} assume { :end_inline_processEnvironment__wrappee__base } true; {503#false} is VALID [2022-02-21 04:15:26,499 INFO L290 TraceCheckUtils]: 14: Hoare triple {503#false} assume { :end_inline_processEnvironment } true; {503#false} is VALID [2022-02-21 04:15:26,500 INFO L290 TraceCheckUtils]: 15: Hoare triple {503#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; {503#false} is VALID [2022-02-21 04:15:26,500 INFO L290 TraceCheckUtils]: 16: Hoare triple {503#false} __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; {503#false} is VALID [2022-02-21 04:15:26,500 INFO L290 TraceCheckUtils]: 17: Hoare triple {503#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); {503#false} is VALID [2022-02-21 04:15:26,500 INFO L290 TraceCheckUtils]: 18: Hoare triple {503#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {503#false} is VALID [2022-02-21 04:15:26,501 INFO L290 TraceCheckUtils]: 19: Hoare triple {503#false} assume { :end_inline_timeShift } true; {503#false} is VALID [2022-02-21 04:15:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:26,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:26,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725309123] [2022-02-21 04:15:26,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725309123] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:26,502 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:26,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:26,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963242282] [2022-02-21 04:15:26,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:26,503 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:26,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:26,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:26,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:26,505 INFO L87 Difference]: Start difference. First operand 93 states and 121 transitions. cyclomatic complexity: 30 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-02-21 04:15:26,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:26,699 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2022-02-21 04:15:26,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:26,700 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-02-21 04:15:26,720 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:26,720 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 146 states and 184 transitions. [2022-02-21 04:15:26,725 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:15:26,729 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 146 states to 146 states and 184 transitions. [2022-02-21 04:15:26,729 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2022-02-21 04:15:26,730 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2022-02-21 04:15:26,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 184 transitions. [2022-02-21 04:15:26,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:26,730 INFO L681 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2022-02-21 04:15:26,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 184 transitions. [2022-02-21 04:15:26,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-02-21 04:15:26,736 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:26,737 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states and 184 transitions. Second operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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) [2022-02-21 04:15:26,737 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states and 184 transitions. Second operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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) [2022-02-21 04:15:26,737 INFO L87 Difference]: Start difference. First operand 146 states and 184 transitions. Second operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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) [2022-02-21 04:15:26,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:26,741 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2022-02-21 04:15:26,741 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 184 transitions. [2022-02-21 04:15:26,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:26,742 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:26,743 INFO L74 IsIncluded]: Start isIncluded. First operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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 146 states and 184 transitions. [2022-02-21 04:15:26,743 INFO L87 Difference]: Start difference. First operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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 146 states and 184 transitions. [2022-02-21 04:15:26,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:26,747 INFO L93 Difference]: Finished difference Result 146 states and 184 transitions. [2022-02-21 04:15:26,747 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 184 transitions. [2022-02-21 04:15:26,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:26,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:26,748 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:26,748 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:26,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 146 states have (on average 1.2602739726027397) internal successors, (184), 145 states have internal predecessors, (184), 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) [2022-02-21 04:15:26,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 184 transitions. [2022-02-21 04:15:26,752 INFO L704 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2022-02-21 04:15:26,752 INFO L587 BuchiCegarLoop]: Abstraction has 146 states and 184 transitions. [2022-02-21 04:15:26,752 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:26,753 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 184 transitions. [2022-02-21 04:15:26,754 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 104 [2022-02-21 04:15:26,754 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:26,754 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:26,755 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,755 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:26,755 INFO L791 eck$LassoCheckResult]: Stem: 748#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 731#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 663#L908 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 664#L901 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 745#L916 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 746#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 742#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 697#L639-2 [2022-02-21 04:15:26,755 INFO L793 eck$LassoCheckResult]: Loop: 697#L639-2 assume !false; 705#L640 assume test_~splverifierCounter~0#1 < 4; 718#L641 test_~tmp~4#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1; 795#L649 assume !(0 != test_~tmp~4#1); 793#L649-2 test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1; 791#L659 assume !(0 != test_~tmp___0~0#1); 667#L659-2 test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1; 668#L669 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 737#L856 assume { :end_inline_startSystem } true; 670#L677-2 assume { :begin_inline_timeShift } true; 671#L707 assume !(0 != ~pumpRunning~0); 672#L707-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 651#L739 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~9#1, isHighWaterLevel_~tmp~6#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~9#1;havoc isHighWaterLevel_~tmp~6#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~6#1;havoc isHighWaterSensorDry_~retValue_acc~6#1; 652#L617 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~6#1; 707#L622 isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1; 678#L841 assume 0 != isHighWaterLevel_~tmp~6#1;isHighWaterLevel_~tmp___0~1#1 := 0; 679#L841-2 isHighWaterLevel_~retValue_acc~9#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~9#1; 728#L847 processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~5#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1; 729#L743 assume !(0 != processEnvironment_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 712#L731 assume { :end_inline_processEnvironment__wrappee__base } true; 713#L739-1 assume { :end_inline_processEnvironment } true; 700#L714-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret48#1, __utac_acc__Specification1_spec__1_#t~ret49#1, __utac_acc__Specification1_spec__1_~tmp~7#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~7#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 701#L577 __utac_acc__Specification1_spec__1_#t~ret48#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~7#1 := __utac_acc__Specification1_spec__1_#t~ret48#1;havoc __utac_acc__Specification1_spec__1_#t~ret48#1; 709#L868 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7#1); 691#L868-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 693#L724 assume { :end_inline_timeShift } true; 697#L639-2 [2022-02-21 04:15:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:26,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311617125] [2022-02-21 04:15:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,775 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,798 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:26,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1833431600, now seen corresponding path program 1 times [2022-02-21 04:15:26,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215028997] [2022-02-21 04:15:26,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,813 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,828 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:26,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:26,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1959872876, now seen corresponding path program 1 times [2022-02-21 04:15:26,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:26,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556559491] [2022-02-21 04:15:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,848 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:26,864 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:29,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:29 BoogieIcfgContainer [2022-02-21 04:15:29,846 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:29,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:29,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:29,847 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:29,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:25" (3/4) ... [2022-02-21 04:15:29,849 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:29,937 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:29,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:29,938 INFO L158 Benchmark]: Toolchain (without parser) took 5481.58ms. Allocated memory was 83.9MB in the beginning and 146.8MB in the end (delta: 62.9MB). Free memory was 50.1MB in the beginning and 90.7MB in the end (delta: -40.6MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:29,939 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 63.6MB in the beginning and 63.6MB in the end (delta: 24.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:29,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 492.80ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.0MB in the beginning and 65.6MB in the end (delta: -15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:29,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.08ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 61.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:29,955 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 100.7MB. Free memory was 61.9MB in the beginning and 60.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:29,956 INFO L158 Benchmark]: RCFGBuilder took 475.03ms. Allocated memory is still 100.7MB. Free memory was 60.3MB in the beginning and 40.1MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:29,956 INFO L158 Benchmark]: BuchiAutomizer took 4295.84ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 40.1MB in the beginning and 93.8MB in the end (delta: -53.8MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:29,957 INFO L158 Benchmark]: Witness Printer took 90.45ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 90.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:29,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 63.6MB in the beginning and 63.6MB in the end (delta: 24.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 492.80ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.0MB in the beginning and 65.6MB in the end (delta: -15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.08ms. Allocated memory is still 100.7MB. Free memory was 65.6MB in the beginning and 61.9MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 100.7MB. Free memory was 61.9MB in the beginning and 60.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 475.03ms. Allocated memory is still 100.7MB. Free memory was 60.3MB in the beginning and 40.1MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 4295.84ms. Allocated memory was 100.7MB in the beginning and 146.8MB in the end (delta: 46.1MB). Free memory was 40.1MB in the beginning and 93.8MB in the end (delta: -53.8MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Witness Printer took 90.45ms. Allocated memory is still 146.8MB. Free memory was 93.8MB in the beginning and 90.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 146 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 146 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 342 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 273 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 639]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, tmp___0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c14671b=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d2b8bc6=0, retValue_acc=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b786804=0, NULL=1, tmp___0=0, methaneLevelCritical=0, retValue_acc=1, retValue_acc=0, retValue_acc=1, \result=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c30212f=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d3c4415=29, tmp=1, tmp___2=29, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e760500=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2050b5=0, tmp=1, \result=0, tmp=0, head=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be05560=0, tmp=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15c79dba=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 639]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L323] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L534] int waterLevel = 1; [L535] int methaneLevelCritical = 0; [L699] int pumpRunning = 0; [L700] int systemActive = 1; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L912] int retValue_acc ; [L915] retValue_acc = 1 [L916] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L630] int splverifierCounter ; [L631] int tmp ; [L632] int tmp___0 ; [L633] int tmp___1 ; [L634] int tmp___2 ; [L637] splverifierCounter = 0 Loop: [L639] COND TRUE 1 [L641] COND TRUE splverifierCounter < 4 [L647] tmp = __VERIFIER_nondet_int() [L649] COND FALSE !(\read(tmp)) [L657] tmp___0 = __VERIFIER_nondet_int() [L659] COND FALSE !(\read(tmp___0)) [L667] tmp___2 = __VERIFIER_nondet_int() [L669] COND TRUE \read(tmp___2) [L671] CALL startSystem() [L855] systemActive = 1 [L671] RET startSystem() [L684] CALL timeShift() [L707] COND FALSE !(\read(pumpRunning)) [L714] COND TRUE \read(systemActive) [L716] CALL processEnvironment() [L736] int tmp ; [L739] COND TRUE ! pumpRunning [L741] CALL, EXPR isHighWaterLevel() [L833] int retValue_acc ; [L834] int tmp ; [L835] int tmp___0 ; [L839] CALL, EXPR isHighWaterSensorDry() [L614] int retValue_acc ; [L617] COND TRUE waterLevel < 2 [L618] retValue_acc = 1 [L619] return (retValue_acc); [L839] RET, EXPR isHighWaterSensorDry() [L839] tmp = isHighWaterSensorDry() [L841] COND TRUE \read(tmp) [L842] tmp___0 = 0 [L846] retValue_acc = tmp___0 [L847] return (retValue_acc); [L741] RET, EXPR isHighWaterLevel() [L741] tmp = isHighWaterLevel() [L743] COND FALSE !(\read(tmp)) [L749] FCALL processEnvironment__wrappee__base() [L716] RET processEnvironment() [L722] CALL __utac_acc__Specification1_spec__1() [L861] int tmp ; [L862] int tmp___0 ; [L866] CALL, EXPR isMethaneLevelCritical() [L573] int retValue_acc ; [L576] retValue_acc = methaneLevelCritical [L577] return (retValue_acc); [L866] RET, EXPR isMethaneLevelCritical() [L866] tmp = isMethaneLevelCritical() [L868] COND FALSE !(\read(tmp)) [L722] RET __utac_acc__Specification1_spec__1() [L684] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:30,027 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)