./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3364c65adf57fef4e6e40e7680894e092c8fbf29e459121c70f90a68103ac5cb --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:23:38,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:23:38,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:23:38,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:23:38,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:23:38,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:23:38,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:23:38,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:23:38,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:23:38,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:23:38,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:23:38,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:23:38,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:23:38,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:23:38,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:23:38,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:23:38,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:23:38,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:23:38,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:23:38,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:23:38,904 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:23:38,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:23:38,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:23:38,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:23:38,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:23:38,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:23:38,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:23:38,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:23:38,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:23:38,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:23:38,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:23:38,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:23:38,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:23:38,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:23:38,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:23:38,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:23:38,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:23:38,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:23:38,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:23:38,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:23:38,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:23:38,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:23:38,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:23:38,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:23:38,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:23:38,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:23:38,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:23:38,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:23:38,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:23:38,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:23:38,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:23:38,955 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:23:38,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:23:38,956 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:23:38,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:23:38,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:23:38,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:23:38,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:23:38,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:23:38,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:23:38,957 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:23:38,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:23:38,957 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:23:38,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:23:38,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:23:38,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:23:38,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:23:38,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:38,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:23:38,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:23:38,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:23:38,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:23:38,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:23:38,960 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:23:38,960 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:23:38,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:23:38,960 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3364c65adf57fef4e6e40e7680894e092c8fbf29e459121c70f90a68103ac5cb [2022-07-19 17:23:39,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:23:39,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:23:39,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:23:39,202 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:23:39,202 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:23:39,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c [2022-07-19 17:23:39,266 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170d8f318/4c9366dbe7c441d29813d4a8c261cb7e/FLAGb32b63b0f [2022-07-19 17:23:39,710 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:23:39,711 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product16.cil.c [2022-07-19 17:23:39,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170d8f318/4c9366dbe7c441d29813d4a8c261cb7e/FLAGb32b63b0f [2022-07-19 17:23:40,228 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/170d8f318/4c9366dbe7c441d29813d4a8c261cb7e [2022-07-19 17:23:40,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:23:40,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:23:40,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:40,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:23:40,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:23:40,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6ff21a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40, skipping insertion in model container [2022-07-19 17:23:40,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:23:40,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:23:40,466 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_spec2_product16.cil.c[11828,11841] [2022-07-19 17:23:40,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:40,505 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:23:40,571 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_spec2_product16.cil.c[11828,11841] [2022-07-19 17:23:40,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:40,622 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:23:40,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40 WrapperNode [2022-07-19 17:23:40,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:40,625 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:40,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:23:40,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:23:40,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,680 INFO L137 Inliner]: procedures = 54, calls = 154, calls flagged for inlining = 20, calls inlined = 16, statements flattened = 206 [2022-07-19 17:23:40,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:40,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:23:40,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:23:40,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:23:40,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,691 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,695 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:23:40,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:23:40,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:23:40,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:23:40,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (1/1) ... [2022-07-19 17:23:40,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:40,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:40,736 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:23:40,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:23:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:23:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:23:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:23:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:23:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:23:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:23:40,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:23:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:23:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:23:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:23:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:23:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-19 17:23:40,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-19 17:23:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:23:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:23:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:23:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:23:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:23:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:23:40,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:23:40,862 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:23:40,865 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:23:41,099 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:23:41,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:23:41,105 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:23:41,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:41 BoogieIcfgContainer [2022-07-19 17:23:41,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:23:41,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:23:41,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:23:41,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:23:41,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:23:40" (1/3) ... [2022-07-19 17:23:41,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e19a85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:41, skipping insertion in model container [2022-07-19 17:23:41,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:40" (2/3) ... [2022-07-19 17:23:41,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e19a85f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:41, skipping insertion in model container [2022-07-19 17:23:41,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:41" (3/3) ... [2022-07-19 17:23:41,114 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product16.cil.c [2022-07-19 17:23:41,126 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:23:41,126 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:23:41,171 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:23:41,177 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@62841aa5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@456d5bbb [2022-07-19 17:23:41,177 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:23:41,181 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 70 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-19 17:23:41,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 17:23:41,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:41,189 INFO L195 NwaCegarLoop]: trace 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] [2022-07-19 17:23:41,190 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:41,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:41,194 INFO L85 PathProgramCache]: Analyzing trace with hash 265998247, now seen corresponding path program 1 times [2022-07-19 17:23:41,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:41,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586256855] [2022-07-19 17:23:41,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:41,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:23:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:41,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:41,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586256855] [2022-07-19 17:23:41,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586256855] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:41,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:41,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:23:41,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584539017] [2022-07-19 17:23:41,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:41,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:23:41,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:41,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:23:41,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:41,399 INFO L87 Difference]: Start difference. First operand has 86 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 70 states have internal predecessors, (86), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:41,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:41,463 INFO L93 Difference]: Finished difference Result 163 states and 218 transitions. [2022-07-19 17:23:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:23:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-19 17:23:41,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:41,474 INFO L225 Difference]: With dead ends: 163 [2022-07-19 17:23:41,474 INFO L226 Difference]: Without dead ends: 77 [2022-07-19 17:23:41,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:41,481 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:41,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-07-19 17:23:41,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-07-19 17:23:41,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 56 states have (on average 1.2857142857142858) internal successors, (72), 62 states have internal predecessors, (72), 13 states have call successors, (13), 8 states have call predecessors, (13), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-19 17:23:41,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 97 transitions. [2022-07-19 17:23:41,531 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 97 transitions. Word has length 25 [2022-07-19 17:23:41,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:41,531 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 97 transitions. [2022-07-19 17:23:41,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:41,532 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 97 transitions. [2022-07-19 17:23:41,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-19 17:23:41,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:41,534 INFO L195 NwaCegarLoop]: trace 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] [2022-07-19 17:23:41,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:23:41,534 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:41,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:41,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1379017056, now seen corresponding path program 1 times [2022-07-19 17:23:41,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:41,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765692897] [2022-07-19 17:23:41,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:41,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 17:23:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:41,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:41,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765692897] [2022-07-19 17:23:41,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765692897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:41,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:41,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:41,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348553148] [2022-07-19 17:23:41,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:41,630 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:41,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:41,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:41,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:41,631 INFO L87 Difference]: Start difference. First operand 77 states and 97 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:41,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:41,644 INFO L93 Difference]: Finished difference Result 114 states and 142 transitions. [2022-07-19 17:23:41,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:41,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-19 17:23:41,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:41,646 INFO L225 Difference]: With dead ends: 114 [2022-07-19 17:23:41,646 INFO L226 Difference]: Without dead ends: 68 [2022-07-19 17:23:41,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:41,648 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:41,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:41,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-07-19 17:23:41,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-07-19 17:23:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 50 states have (on average 1.3) internal successors, (65), 56 states have internal predecessors, (65), 10 states have call successors, (10), 7 states have call predecessors, (10), 7 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-19 17:23:41,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2022-07-19 17:23:41,657 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 26 [2022-07-19 17:23:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:41,658 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2022-07-19 17:23:41,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:41,658 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2022-07-19 17:23:41,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-19 17:23:41,659 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:41,660 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1] [2022-07-19 17:23:41,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:23:41,660 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:41,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:41,660 INFO L85 PathProgramCache]: Analyzing trace with hash -969984948, now seen corresponding path program 1 times [2022-07-19 17:23:41,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:41,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971313992] [2022-07-19 17:23:41,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:41,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-19 17:23:41,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:41,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:41,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971313992] [2022-07-19 17:23:41,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971313992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:41,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:41,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:41,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766619866] [2022-07-19 17:23:41,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:41,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:41,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:41,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:41,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:41,721 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:41,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:41,744 INFO L93 Difference]: Finished difference Result 186 states and 238 transitions. [2022-07-19 17:23:41,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:41,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-07-19 17:23:41,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:41,747 INFO L225 Difference]: With dead ends: 186 [2022-07-19 17:23:41,747 INFO L226 Difference]: Without dead ends: 126 [2022-07-19 17:23:41,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:41,749 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 62 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:41,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:41,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2022-07-19 17:23:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2022-07-19 17:23:41,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 88 states have (on average 1.3295454545454546) internal successors, (117), 99 states have internal predecessors, (117), 20 states have call successors, (20), 14 states have call predecessors, (20), 14 states have return successors, (20), 15 states have call predecessors, (20), 20 states have call successors, (20) [2022-07-19 17:23:41,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 157 transitions. [2022-07-19 17:23:41,767 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 157 transitions. Word has length 31 [2022-07-19 17:23:41,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:41,767 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 157 transitions. [2022-07-19 17:23:41,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 157 transitions. [2022-07-19 17:23:41,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 17:23:41,769 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:41,769 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:41,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:23:41,770 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:41,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:41,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1792730875, now seen corresponding path program 1 times [2022-07-19 17:23:41,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:41,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718610809] [2022-07-19 17:23:41,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:41,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:23:41,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:41,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:41,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718610809] [2022-07-19 17:23:41,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718610809] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:41,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:41,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:41,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269748834] [2022-07-19 17:23:41,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:41,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:41,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:41,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:41,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:41,901 INFO L87 Difference]: Start difference. First operand 123 states and 157 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:42,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:42,016 INFO L93 Difference]: Finished difference Result 351 states and 456 transitions. [2022-07-19 17:23:42,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:23:42,017 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-07-19 17:23:42,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:42,020 INFO L225 Difference]: With dead ends: 351 [2022-07-19 17:23:42,020 INFO L226 Difference]: Without dead ends: 236 [2022-07-19 17:23:42,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:23:42,022 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 53 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:42,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 411 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:42,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-19 17:23:42,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 230. [2022-07-19 17:23:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 161 states have (on average 1.31055900621118) internal successors, (211), 182 states have internal predecessors, (211), 40 states have call successors, (40), 28 states have call predecessors, (40), 28 states have return successors, (42), 30 states have call predecessors, (42), 40 states have call successors, (42) [2022-07-19 17:23:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 293 transitions. [2022-07-19 17:23:42,061 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 293 transitions. Word has length 34 [2022-07-19 17:23:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:42,061 INFO L495 AbstractCegarLoop]: Abstraction has 230 states and 293 transitions. [2022-07-19 17:23:42,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 293 transitions. [2022-07-19 17:23:42,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 17:23:42,064 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:42,064 INFO L195 NwaCegarLoop]: trace 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:42,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:23:42,064 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:42,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:42,065 INFO L85 PathProgramCache]: Analyzing trace with hash 847775393, now seen corresponding path program 1 times [2022-07-19 17:23:42,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:42,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394878368] [2022-07-19 17:23:42,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:42,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:23:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 17:23:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:42,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:42,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:42,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394878368] [2022-07-19 17:23:42,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394878368] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:42,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:42,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:42,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134170081] [2022-07-19 17:23:42,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:42,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:42,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:42,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:42,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:42,183 INFO L87 Difference]: Start difference. First operand 230 states and 293 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:42,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:42,290 INFO L93 Difference]: Finished difference Result 390 states and 499 transitions. [2022-07-19 17:23:42,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:42,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 38 [2022-07-19 17:23:42,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:42,292 INFO L225 Difference]: With dead ends: 390 [2022-07-19 17:23:42,292 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:23:42,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 17:23:42,302 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 49 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:42,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 132 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:42,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:23:42,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:23:42,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-07-19 17:23:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:23:42,304 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-07-19 17:23:42,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:42,304 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:23:42,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:23:42,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:23:42,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:23:42,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:23:42,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:23:42,676 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 741 748) the Hoare annotation is: true [2022-07-19 17:23:42,677 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 741 748) no Hoare annotation was computed. [2022-07-19 17:23:42,677 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 741 748) no Hoare annotation was computed. [2022-07-19 17:23:42,677 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 495 506) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-19 17:23:42,677 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 495 506) no Hoare annotation was computed. [2022-07-19 17:23:42,677 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 495 506) no Hoare annotation was computed. [2022-07-19 17:23:42,677 INFO L899 garLoopResultBuilder]: For program point L919(lines 919 929) no Hoare annotation was computed. [2022-07-19 17:23:42,678 INFO L899 garLoopResultBuilder]: For program point L663-1(lines 662 681) no Hoare annotation was computed. [2022-07-19 17:23:42,678 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 932) no Hoare annotation was computed. [2022-07-19 17:23:42,678 INFO L895 garLoopResultBuilder]: At program point L915-1(lines 907 935) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~7#1| 0)))) [2022-07-19 17:23:42,679 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 659 682) no Hoare annotation was computed. [2022-07-19 17:23:42,679 INFO L895 garLoopResultBuilder]: At program point L705(line 705) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:42,679 INFO L895 garLoopResultBuilder]: At program point L701(line 701) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:42,679 INFO L895 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:42,679 INFO L899 garLoopResultBuilder]: For program point L697-1(line 697) no Hoare annotation was computed. [2022-07-19 17:23:42,680 INFO L899 garLoopResultBuilder]: For program point L920(lines 920 926) no Hoare annotation was computed. [2022-07-19 17:23:42,680 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-07-19 17:23:42,681 INFO L895 garLoopResultBuilder]: At program point L710(line 710) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:23:42,682 INFO L895 garLoopResultBuilder]: At program point L710-1(lines 691 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:23:42,682 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 479) no Hoare annotation was computed. [2022-07-19 17:23:42,683 INFO L895 garLoopResultBuilder]: At program point L475-2(lines 471 482) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:42,683 INFO L895 garLoopResultBuilder]: At program point L913(line 913) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:23:42,683 INFO L899 garLoopResultBuilder]: For program point L913-1(line 913) no Hoare annotation was computed. [2022-07-19 17:23:42,683 INFO L895 garLoopResultBuilder]: At program point L459(lines 454 461) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:42,683 INFO L899 garLoopResultBuilder]: For program point L670-1(lines 670 676) no Hoare annotation was computed. [2022-07-19 17:23:42,684 INFO L895 garLoopResultBuilder]: At program point L765(lines 760 768) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0))))) [2022-07-19 17:23:42,684 INFO L899 garLoopResultBuilder]: For program point L699(lines 699 707) no Hoare annotation was computed. [2022-07-19 17:23:42,684 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 712) no Hoare annotation was computed. [2022-07-19 17:23:42,684 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 659 682) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:23:42,685 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 659 682) no Hoare annotation was computed. [2022-07-19 17:23:42,685 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 458) no Hoare annotation was computed. [2022-07-19 17:23:42,685 INFO L902 garLoopResultBuilder]: At program point L576(lines 551 580) the Hoare annotation is: true [2022-07-19 17:23:42,685 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 551 580) no Hoare annotation was computed. [2022-07-19 17:23:42,685 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 551 580) the Hoare annotation is: true [2022-07-19 17:23:42,685 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2022-07-19 17:23:42,686 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 569) no Hoare annotation was computed. [2022-07-19 17:23:42,686 INFO L902 garLoopResultBuilder]: At program point L565-1(lines 565 569) the Hoare annotation is: true [2022-07-19 17:23:42,686 INFO L899 garLoopResultBuilder]: For program point L562(line 562) no Hoare annotation was computed. [2022-07-19 17:23:42,686 INFO L902 garLoopResultBuilder]: At program point L561-2(lines 561 575) the Hoare annotation is: true [2022-07-19 17:23:42,686 INFO L902 garLoopResultBuilder]: At program point L557(line 557) the Hoare annotation is: true [2022-07-19 17:23:42,686 INFO L899 garLoopResultBuilder]: For program point L557-1(line 557) no Hoare annotation was computed. [2022-07-19 17:23:42,688 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 507 515) the Hoare annotation is: true [2022-07-19 17:23:42,688 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 507 515) no Hoare annotation was computed. [2022-07-19 17:23:42,690 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 507 515) no Hoare annotation was computed. [2022-07-19 17:23:42,690 INFO L895 garLoopResultBuilder]: At program point L861(line 861) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:42,693 INFO L895 garLoopResultBuilder]: At program point L886(lines 839 888) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:42,693 INFO L899 garLoopResultBuilder]: For program point L849(lines 849 855) no Hoare annotation was computed. [2022-07-19 17:23:42,693 INFO L899 garLoopResultBuilder]: For program point L849-1(lines 849 855) no Hoare annotation was computed. [2022-07-19 17:23:42,693 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 845) no Hoare annotation was computed. [2022-07-19 17:23:42,693 INFO L895 garLoopResultBuilder]: At program point L610(lines 606 612) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:42,694 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:23:42,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:23:42,694 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:23:42,694 INFO L895 garLoopResultBuilder]: At program point L825(lines 820 827) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:42,694 INFO L895 garLoopResultBuilder]: At program point L817(lines 805 819) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:42,694 INFO L902 garLoopResultBuilder]: At program point L623(lines 615 625) the Hoare annotation is: true [2022-07-19 17:23:42,695 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 815) no Hoare annotation was computed. [2022-07-19 17:23:42,695 INFO L895 garLoopResultBuilder]: At program point L904(lines 899 906) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:42,695 INFO L899 garLoopResultBuilder]: For program point L809-1(lines 809 815) no Hoare annotation was computed. [2022-07-19 17:23:42,695 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:23:42,696 INFO L899 garLoopResultBuilder]: For program point L636(lines 636 643) no Hoare annotation was computed. [2022-07-19 17:23:42,696 INFO L902 garLoopResultBuilder]: At program point L892(lines 829 896) the Hoare annotation is: true [2022-07-19 17:23:42,696 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 865) no Hoare annotation was computed. [2022-07-19 17:23:42,696 INFO L899 garLoopResultBuilder]: For program point L859-1(lines 859 865) no Hoare annotation was computed. [2022-07-19 17:23:42,696 INFO L899 garLoopResultBuilder]: For program point L636-2(lines 636 643) no Hoare annotation was computed. [2022-07-19 17:23:42,696 INFO L895 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:42,697 INFO L895 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:42,697 INFO L895 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:42,697 INFO L902 garLoopResultBuilder]: At program point L645(lines 626 648) the Hoare annotation is: true [2022-07-19 17:23:42,697 INFO L895 garLoopResultBuilder]: At program point L889(lines 838 890) the Hoare annotation is: false [2022-07-19 17:23:42,698 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 883) no Hoare annotation was computed. [2022-07-19 17:23:42,698 INFO L895 garLoopResultBuilder]: At program point L811(line 811) the Hoare annotation is: false [2022-07-19 17:23:42,698 INFO L895 garLoopResultBuilder]: At program point L877-2(lines 869 884) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:42,698 INFO L899 garLoopResultBuilder]: For program point L840(lines 839 888) no Hoare annotation was computed. [2022-07-19 17:23:42,698 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 884) no Hoare annotation was computed. [2022-07-19 17:23:42,699 INFO L895 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:42,699 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 483 494) no Hoare annotation was computed. [2022-07-19 17:23:42,700 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 483 494) no Hoare annotation was computed. [2022-07-19 17:23:42,700 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 483 494) the Hoare annotation is: true [2022-07-19 17:23:42,700 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 683 689) no Hoare annotation was computed. [2022-07-19 17:23:42,700 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 683 689) the Hoare annotation is: true [2022-07-19 17:23:42,700 INFO L899 garLoopResultBuilder]: For program point L754-1(line 754) no Hoare annotation was computed. [2022-07-19 17:23:42,702 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 749 759) the Hoare annotation is: true [2022-07-19 17:23:42,702 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 749 759) no Hoare annotation was computed. [2022-07-19 17:23:42,702 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 749 759) no Hoare annotation was computed. [2022-07-19 17:23:42,702 INFO L902 garLoopResultBuilder]: At program point L754(line 754) the Hoare annotation is: true [2022-07-19 17:23:42,708 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 17:23:42,710 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:23:42,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:23:42 BoogieIcfgContainer [2022-07-19 17:23:42,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:23:42,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:23:42,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:23:42,744 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:23:42,745 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:41" (3/4) ... [2022-07-19 17:23:42,748 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:23:42,757 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:23:42,757 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:23:42,757 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:23:42,757 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:23:42,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-19 17:23:42,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:23:42,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:23:42,758 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-19 17:23:42,768 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-07-19 17:23:42,772 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:23:42,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:23:42,773 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:23:42,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:23:42,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:23:42,774 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:23:42,799 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:23:42,803 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2022-07-19 17:23:42,805 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-07-19 17:23:42,805 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-19 17:23:42,805 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:23:42,831 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:23:42,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:23:42,831 INFO L158 Benchmark]: Toolchain (without parser) took 2600.00ms. Allocated memory is still 113.2MB. Free memory was 79.0MB in the beginning and 41.3MB in the end (delta: 37.7MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,832 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:23:42,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.26ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 80.5MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.63ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 78.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,833 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 113.2MB. Free memory was 78.3MB in the beginning and 76.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,833 INFO L158 Benchmark]: RCFGBuilder took 395.60ms. Allocated memory is still 113.2MB. Free memory was 76.9MB in the beginning and 61.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,834 INFO L158 Benchmark]: TraceAbstraction took 1634.60ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 46.2MB in the end (delta: 14.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,834 INFO L158 Benchmark]: Witness Printer took 87.30ms. Allocated memory is still 113.2MB. Free memory was 46.2MB in the beginning and 41.3MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:23:42,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 47.2MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.26ms. Allocated memory is still 113.2MB. Free memory was 78.7MB in the beginning and 80.5MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.63ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 78.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 113.2MB. Free memory was 78.3MB in the beginning and 76.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.60ms. Allocated memory is still 113.2MB. Free memory was 76.9MB in the beginning and 61.5MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1634.60ms. Allocated memory is still 113.2MB. Free memory was 61.0MB in the beginning and 46.2MB in the end (delta: 14.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Witness Printer took 87.30ms. Allocated memory is still 113.2MB. Free memory was 46.2MB in the beginning and 41.3MB in the end (delta: 5.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 458]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 189 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 974 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 536 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 438 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 305 PreInvPairs, 349 NumberOfFragments, 214 HoareAnnotationTreeSize, 305 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 39 FomulaSimplificationsInter, 883 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 307 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 907]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 899]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 820]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 838]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 805]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 561]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 471]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 839]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 626]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-19 17:23:42,914 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE