./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 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_spec1_product07.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 699ded97cbb1126ff33cf78f7c5253f33e10fc954d477377647b1ae04749f3fb --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-13 17:57:27,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 17:57:27,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 17:57:27,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 17:57:27,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 17:57:27,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 17:57:27,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 17:57:27,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 17:57:27,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 17:57:27,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 17:57:27,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 17:57:27,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 17:57:27,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 17:57:27,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 17:57:27,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 17:57:27,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 17:57:27,293 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 17:57:27,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 17:57:27,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 17:57:27,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 17:57:27,297 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 17:57:27,298 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 17:57:27,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 17:57:27,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 17:57:27,301 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 17:57:27,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 17:57:27,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 17:57:27,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 17:57:27,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 17:57:27,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 17:57:27,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 17:57:27,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 17:57:27,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 17:57:27,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 17:57:27,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 17:57:27,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 17:57:27,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 17:57:27,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 17:57:27,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 17:57:27,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 17:57:27,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 17:57:27,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 17:57:27,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-13 17:57:27,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 17:57:27,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 17:57:27,329 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 17:57:27,329 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 17:57:27,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 17:57:27,330 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 17:57:27,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 17:57:27,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 17:57:27,331 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 17:57:27,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 17:57:27,331 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 17:57:27,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 17:57:27,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 17:57:27,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 17:57:27,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 17:57:27,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 17:57:27,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 17:57:27,333 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 17:57:27,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 17:57:27,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 17:57:27,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 17:57:27,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 17:57:27,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 17:57:27,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 17:57:27,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:57:27,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 17:57:27,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 17:57:27,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 17:57:27,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 17:57:27,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 17:57:27,335 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-13 17:57:27,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-13 17:57:27,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 17:57:27,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 699ded97cbb1126ff33cf78f7c5253f33e10fc954d477377647b1ae04749f3fb [2022-07-13 17:57:27,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 17:57:27,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 17:57:27,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 17:57:27,538 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 17:57:27,539 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 17:57:27,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2022-07-13 17:57:27,587 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7189ab6ca/2aa8d432d88145fc8ec399c4a9137868/FLAG2ee25f244 [2022-07-13 17:57:27,958 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 17:57:27,959 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product07.cil.c [2022-07-13 17:57:27,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7189ab6ca/2aa8d432d88145fc8ec399c4a9137868/FLAG2ee25f244 [2022-07-13 17:57:28,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7189ab6ca/2aa8d432d88145fc8ec399c4a9137868 [2022-07-13 17:57:28,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 17:57:28,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 17:57:28,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 17:57:28,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 17:57:28,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 17:57:28,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6d51bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28, skipping insertion in model container [2022-07-13 17:57:28,330 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 17:57:28,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 17:57:28,497 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_product07.cil.c[3211,3224] [2022-07-13 17:57:28,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:57:28,579 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 17:57:28,614 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_product07.cil.c[3211,3224] [2022-07-13 17:57:28,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 17:57:28,676 INFO L208 MainTranslator]: Completed translation [2022-07-13 17:57:28,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28 WrapperNode [2022-07-13 17:57:28,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 17:57:28,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 17:57:28,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 17:57:28,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 17:57:28,683 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,707 INFO L137 Inliner]: procedures = 51, calls = 150, calls flagged for inlining = 18, calls inlined = 15, statements flattened = 204 [2022-07-13 17:57:28,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 17:57:28,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 17:57:28,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 17:57:28,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 17:57:28,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 17:57:28,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 17:57:28,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 17:57:28,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 17:57:28,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (1/1) ... [2022-07-13 17:57:28,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 17:57:28,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 17:57:28,788 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) [2022-07-13 17:57:28,789 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 [2022-07-13 17:57:28,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 17:57:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-13 17:57:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-13 17:57:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-13 17:57:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-13 17:57:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-13 17:57:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-13 17:57:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-13 17:57:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-13 17:57:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-13 17:57:28,811 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-13 17:57:28,811 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-13 17:57:28,812 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-13 17:57:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 17:57:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-13 17:57:28,812 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-13 17:57:28,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 17:57:28,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 17:57:28,858 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 17:57:28,859 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 17:57:29,085 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 17:57:29,090 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 17:57:29,090 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 17:57:29,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:57:29 BoogieIcfgContainer [2022-07-13 17:57:29,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 17:57:29,111 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 17:57:29,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 17:57:29,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 17:57:29,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 05:57:28" (1/3) ... [2022-07-13 17:57:29,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4f5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:57:29, skipping insertion in model container [2022-07-13 17:57:29,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 05:57:28" (2/3) ... [2022-07-13 17:57:29,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39a4f5e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 05:57:29, skipping insertion in model container [2022-07-13 17:57:29,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:57:29" (3/3) ... [2022-07-13 17:57:29,118 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product07.cil.c [2022-07-13 17:57:29,144 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 17:57:29,144 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-13 17:57:29,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 17:57:29,199 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@5482de71, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@153bfa3c [2022-07-13 17:57:29,200 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-13 17:57:29,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-13 17:57:29,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-13 17:57:29,220 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:29,221 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] [2022-07-13 17:57:29,222 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:29,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:29,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1089511908, now seen corresponding path program 1 times [2022-07-13 17:57:29,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:29,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813900638] [2022-07-13 17:57:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:29,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-13 17:57:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:57:29,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:29,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813900638] [2022-07-13 17:57:29,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813900638] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:29,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:29,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 17:57:29,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553840239] [2022-07-13 17:57:29,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:29,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-13 17:57:29,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:29,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-13 17:57:29,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-13 17:57:29,445 INFO L87 Difference]: Start difference. First operand has 79 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 65 states have internal predecessors, (80), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-07-13 17:57:29,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:29,474 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2022-07-13 17:57:29,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-13 17:57:29,476 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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 23 [2022-07-13 17:57:29,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:29,486 INFO L225 Difference]: With dead ends: 150 [2022-07-13 17:57:29,486 INFO L226 Difference]: Without dead ends: 70 [2022-07-13 17:57:29,489 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 [2022-07-13 17:57:29,492 INFO L413 NwaCegarLoop]: 98 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, 98 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 [2022-07-13 17:57:29,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:29,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-07-13 17:57:29,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-07-13 17:57:29,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.2941176470588236) internal successors, (66), 57 states have internal predecessors, (66), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-13 17:57:29,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-07-13 17:57:29,530 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 23 [2022-07-13 17:57:29,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:29,530 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-07-13 17:57:29,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 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) [2022-07-13 17:57:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-07-13 17:57:29,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-13 17:57:29,534 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:29,534 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] [2022-07-13 17:57:29,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 17:57:29,535 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:29,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2008002400, now seen corresponding path program 1 times [2022-07-13 17:57:29,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:29,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328158774] [2022-07-13 17:57:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:29,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:29,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-13 17:57:29,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:57:29,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:29,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328158774] [2022-07-13 17:57:29,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328158774] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:29,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:29,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 17:57:29,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765692897] [2022-07-13 17:57:29,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:29,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 17:57:29,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:29,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 17:57:29,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 17:57:29,621 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-13 17:57:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:29,642 INFO L93 Difference]: Finished difference Result 102 states and 128 transitions. [2022-07-13 17:57:29,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 17:57:29,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 24 [2022-07-13 17:57:29,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:29,644 INFO L225 Difference]: With dead ends: 102 [2022-07-13 17:57:29,644 INFO L226 Difference]: Without dead ends: 61 [2022-07-13 17:57:29,644 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 [2022-07-13 17:57:29,645 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 16 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 131 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 [2022-07-13 17:57:29,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 131 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:29,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-13 17:57:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-13 17:57:29,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 51 states have internal predecessors, (59), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-13 17:57:29,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-07-13 17:57:29,660 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 24 [2022-07-13 17:57:29,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:29,660 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-07-13 17:57:29,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-07-13 17:57:29,661 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-07-13 17:57:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 17:57:29,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:29,663 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] [2022-07-13 17:57:29,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 17:57:29,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:29,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:29,664 INFO L85 PathProgramCache]: Analyzing trace with hash -184912456, now seen corresponding path program 1 times [2022-07-13 17:57:29,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:29,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989527926] [2022-07-13 17:57:29,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:29,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:29,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:57:29,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:57:29,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:29,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989527926] [2022-07-13 17:57:29,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989527926] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:29,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:29,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:57:29,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379072060] [2022-07-13 17:57:29,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:29,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:57:29,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:29,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:57:29,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:57:29,731 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-13 17:57:29,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:29,867 INFO L93 Difference]: Finished difference Result 210 states and 272 transitions. [2022-07-13 17:57:29,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:57:29,868 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 28 [2022-07-13 17:57:29,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:29,869 INFO L225 Difference]: With dead ends: 210 [2022-07-13 17:57:29,870 INFO L226 Difference]: Without dead ends: 156 [2022-07-13 17:57:29,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-13 17:57:29,871 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 203 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:57:29,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 359 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:57:29,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-07-13 17:57:29,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 150. [2022-07-13 17:57:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 109 states have (on average 1.348623853211009) internal successors, (147), 123 states have internal predecessors, (147), 23 states have call successors, (23), 17 states have call predecessors, (23), 17 states have return successors, (24), 17 states have call predecessors, (24), 23 states have call successors, (24) [2022-07-13 17:57:29,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 194 transitions. [2022-07-13 17:57:29,893 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 194 transitions. Word has length 28 [2022-07-13 17:57:29,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:29,893 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 194 transitions. [2022-07-13 17:57:29,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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) [2022-07-13 17:57:29,894 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 194 transitions. [2022-07-13 17:57:29,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-13 17:57:29,895 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:29,895 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] [2022-07-13 17:57:29,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 17:57:29,895 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:29,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1927409760, now seen corresponding path program 1 times [2022-07-13 17:57:29,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:29,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689980908] [2022-07-13 17:57:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:29,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-13 17:57:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-13 17:57:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:57:29,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:29,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689980908] [2022-07-13 17:57:29,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689980908] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:29,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:29,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:57:29,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821429159] [2022-07-13 17:57:29,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:29,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:57:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:29,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:57:29,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:57:29,953 INFO L87 Difference]: Start difference. First operand 150 states and 194 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 17:57:30,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:30,049 INFO L93 Difference]: Finished difference Result 437 states and 578 transitions. [2022-07-13 17:57:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-13 17:57:30,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-13 17:57:30,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:30,057 INFO L225 Difference]: With dead ends: 437 [2022-07-13 17:57:30,057 INFO L226 Difference]: Without dead ends: 294 [2022-07-13 17:57:30,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:57:30,059 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 49 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 17:57:30,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 370 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 17:57:30,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2022-07-13 17:57:30,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 285. [2022-07-13 17:57:30,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 204 states have (on average 1.3284313725490196) internal successors, (271), 231 states have internal predecessors, (271), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (51), 34 states have call predecessors, (51), 46 states have call successors, (51) [2022-07-13 17:57:30,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 368 transitions. [2022-07-13 17:57:30,083 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 368 transitions. Word has length 33 [2022-07-13 17:57:30,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:30,083 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 368 transitions. [2022-07-13 17:57:30,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-13 17:57:30,084 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 368 transitions. [2022-07-13 17:57:30,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-13 17:57:30,085 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 17:57:30,085 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] [2022-07-13 17:57:30,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 17:57:30,086 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-13 17:57:30,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 17:57:30,086 INFO L85 PathProgramCache]: Analyzing trace with hash 691778524, now seen corresponding path program 1 times [2022-07-13 17:57:30,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 17:57:30,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842488660] [2022-07-13 17:57:30,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 17:57:30,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 17:57:30,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:30,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-13 17:57:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-13 17:57:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-13 17:57:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 17:57:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 17:57:30,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 17:57:30,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842488660] [2022-07-13 17:57:30,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842488660] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 17:57:30,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 17:57:30,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-13 17:57:30,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424591505] [2022-07-13 17:57:30,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 17:57:30,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 17:57:30,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 17:57:30,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 17:57:30,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-13 17:57:30,153 INFO L87 Difference]: Start difference. First operand 285 states and 368 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 17:57:30,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 17:57:30,232 INFO L93 Difference]: Finished difference Result 510 states and 664 transitions. [2022-07-13 17:57:30,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 17:57:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-13 17:57:30,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 17:57:30,234 INFO L225 Difference]: With dead ends: 510 [2022-07-13 17:57:30,234 INFO L226 Difference]: Without dead ends: 0 [2022-07-13 17:57:30,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-13 17:57:30,241 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 17:57:30,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 17:57:30,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-13 17:57:30,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-13 17:57:30,242 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) [2022-07-13 17:57:30,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-13 17:57:30,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-07-13 17:57:30,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 17:57:30,243 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-13 17:57:30,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-13 17:57:30,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-13 17:57:30,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-13 17:57:30,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-13 17:57:30,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-13 17:57:30,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-13 17:57:30,673 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 246 253) the Hoare annotation is: true [2022-07-13 17:57:30,673 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 246 253) no Hoare annotation was computed. [2022-07-13 17:57:30,673 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 246 253) no Hoare annotation was computed. [2022-07-13 17:57:30,673 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 205 211) no Hoare annotation was computed. [2022-07-13 17:57:30,673 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 205 211) the Hoare annotation is: true [2022-07-13 17:57:30,673 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-13 17:57:30,674 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-07-13 17:57:30,674 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-07-13 17:57:30,674 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 433 462) no Hoare annotation was computed. [2022-07-13 17:57:30,674 INFO L899 garLoopResultBuilder]: For program point L447(lines 447 451) no Hoare annotation was computed. [2022-07-13 17:57:30,674 INFO L902 garLoopResultBuilder]: At program point L447-1(lines 447 451) the Hoare annotation is: true [2022-07-13 17:57:30,674 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 433 462) the Hoare annotation is: true [2022-07-13 17:57:30,674 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-07-13 17:57:30,674 INFO L902 garLoopResultBuilder]: At program point L443-2(lines 443 457) the Hoare annotation is: true [2022-07-13 17:57:30,675 INFO L902 garLoopResultBuilder]: At program point L439(line 439) the Hoare annotation is: true [2022-07-13 17:57:30,675 INFO L899 garLoopResultBuilder]: For program point L439-1(line 439) no Hoare annotation was computed. [2022-07-13 17:57:30,675 INFO L902 garLoopResultBuilder]: At program point L458(lines 433 462) the Hoare annotation is: true [2022-07-13 17:57:30,675 INFO L899 garLoopResultBuilder]: For program point L454(line 454) no Hoare annotation was computed. [2022-07-13 17:57:30,675 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 192 198) no Hoare annotation was computed. [2022-07-13 17:57:30,675 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 229) no Hoare annotation was computed. [2022-07-13 17:57:30,675 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 234) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L899 garLoopResultBuilder]: For program point L168(line 168) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 181 204) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L895 garLoopResultBuilder]: At program point L259(line 259) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:30,676 INFO L899 garLoopResultBuilder]: For program point L259-1(line 259) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L899 garLoopResultBuilder]: For program point L185-1(lines 184 203) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L895 garLoopResultBuilder]: At program point L144(line 144) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-13 17:57:30,676 INFO L899 garLoopResultBuilder]: For program point L144-1(line 144) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L895 garLoopResultBuilder]: At program point L169(lines 164 171) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:30,676 INFO L895 garLoopResultBuilder]: At program point L227(line 227) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:30,676 INFO L895 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:30,676 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-07-13 17:57:30,676 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:30,677 INFO L895 garLoopResultBuilder]: At program point L232(line 232) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-13 17:57:30,677 INFO L895 garLoopResultBuilder]: At program point L232-1(lines 213 237) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-13 17:57:30,677 INFO L895 garLoopResultBuilder]: At program point L261(lines 254 264) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-13 17:57:30,677 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 156) no Hoare annotation was computed. [2022-07-13 17:57:30,677 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 159) no Hoare annotation was computed. [2022-07-13 17:57:30,677 INFO L895 garLoopResultBuilder]: At program point L146-1(lines 138 162) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) (not (= ~methaneLevelCritical~0 0))))) [2022-07-13 17:57:30,677 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 181 204) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-13 17:57:30,679 INFO L895 garLoopResultBuilder]: At program point L270(lines 265 273) 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))))) [2022-07-13 17:57:30,679 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 181 204) no Hoare annotation was computed. [2022-07-13 17:57:30,680 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 168) no Hoare annotation was computed. [2022-07-13 17:57:30,681 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 94 102) the Hoare annotation is: true [2022-07-13 17:57:30,681 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 94 102) no Hoare annotation was computed. [2022-07-13 17:57:30,683 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2022-07-13 17:57:30,684 INFO L899 garLoopResultBuilder]: For program point L514-2(lines 514 521) no Hoare annotation was computed. [2022-07-13 17:57:30,684 INFO L895 garLoopResultBuilder]: At program point L382(lines 337 384) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:30,684 INFO L895 garLoopResultBuilder]: At program point L349(line 349) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:30,684 INFO L895 garLoopResultBuilder]: At program point L316(line 316) the Hoare annotation is: false [2022-07-13 17:57:30,684 INFO L902 garLoopResultBuilder]: At program point L523(lines 504 526) the Hoare annotation is: true [2022-07-13 17:57:30,684 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-13 17:57:30,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-13 17:57:30,684 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L895 garLoopResultBuilder]: At program point L412(lines 408 414) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L338(lines 337 384) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 380) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L895 garLoopResultBuilder]: At program point L491(lines 487 493) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~3#1| ~systemActive~0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-13 17:57:30,685 INFO L895 garLoopResultBuilder]: At program point L359(line 359) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:30,685 INFO L902 garLoopResultBuilder]: At program point L388(lines 327 392) the Hoare annotation is: true [2022-07-13 17:57:30,685 INFO L895 garLoopResultBuilder]: At program point L322(lines 310 324) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 353) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 347 353) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L314(lines 314 320) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L314-1(lines 314 320) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 343) no Hoare annotation was computed. [2022-07-13 17:57:30,685 INFO L895 garLoopResultBuilder]: At program point L385(lines 336 386) the Hoare annotation is: false [2022-07-13 17:57:30,685 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 379) no Hoare annotation was computed. [2022-07-13 17:57:30,686 INFO L902 garLoopResultBuilder]: At program point L501(lines 494 503) the Hoare annotation is: true [2022-07-13 17:57:30,686 INFO L895 garLoopResultBuilder]: At program point L373-2(lines 367 380) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-13 17:57:30,686 INFO L895 garLoopResultBuilder]: At program point L427(lines 422 430) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-13 17:57:30,686 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 363) no Hoare annotation was computed. [2022-07-13 17:57:30,686 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 357 363) no Hoare annotation was computed. [2022-07-13 17:57:30,686 INFO L895 garLoopResultBuilder]: At program point L419(lines 415 421) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-13 17:57:30,686 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 521) no Hoare annotation was computed. [2022-07-13 17:57:30,686 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-07-13 17:57:30,686 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-07-13 17:57:30,686 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2022-07-13 17:57:30,691 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-13 17:57:30,692 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-13 17:57:30,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.07 05:57:30 BoogieIcfgContainer [2022-07-13 17:57:30,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-13 17:57:30,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 17:57:30,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 17:57:30,703 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 17:57:30,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 05:57:29" (3/4) ... [2022-07-13 17:57:30,705 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-13 17:57:30,709 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-13 17:57:30,709 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-13 17:57:30,709 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-13 17:57:30,710 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-13 17:57:30,710 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-13 17:57:30,710 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-13 17:57:30,710 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-13 17:57:30,714 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-07-13 17:57:30,714 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-13 17:57:30,714 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-13 17:57:30,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-13 17:57:30,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-13 17:57:30,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:57:30,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-13 17:57:30,730 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-13 17:57:30,731 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == systemActive) && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-13 17:57:30,731 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:30,731 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-13 17:57:30,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-07-13 17:57:30,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:30,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-13 17:57:30,732 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-13 17:57:30,764 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 17:57:30,764 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 17:57:30,765 INFO L158 Benchmark]: Toolchain (without parser) took 2438.90ms. Allocated memory was 102.8MB in the beginning and 140.5MB in the end (delta: 37.7MB). Free memory was 69.1MB in the beginning and 98.0MB in the end (delta: -29.0MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2022-07-13 17:57:30,765 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:57:30,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 350.39ms. Allocated memory is still 102.8MB. Free memory was 68.8MB in the beginning and 70.0MB in the end (delta: -1.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-07-13 17:57:30,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.84ms. Allocated memory is still 102.8MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 17:57:30,765 INFO L158 Benchmark]: Boogie Preprocessor took 45.38ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 66.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 17:57:30,765 INFO L158 Benchmark]: RCFGBuilder took 333.15ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 51.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-13 17:57:30,766 INFO L158 Benchmark]: TraceAbstraction took 1591.60ms. Allocated memory is still 140.5MB. Free memory was 115.8MB in the beginning and 103.3MB in the end (delta: 12.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-07-13 17:57:30,766 INFO L158 Benchmark]: Witness Printer took 60.96ms. Allocated memory is still 140.5MB. Free memory was 103.3MB in the beginning and 98.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-13 17:57:30,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 102.8MB. Free memory was 57.2MB in the beginning and 57.1MB in the end (delta: 47.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 350.39ms. Allocated memory is still 102.8MB. Free memory was 68.8MB in the beginning and 70.0MB in the end (delta: -1.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.84ms. Allocated memory is still 102.8MB. Free memory was 70.0MB in the beginning and 67.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.38ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 66.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 333.15ms. Allocated memory is still 102.8MB. Free memory was 66.5MB in the beginning and 51.6MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1591.60ms. Allocated memory is still 140.5MB. Free memory was 115.8MB in the beginning and 103.3MB in the end (delta: 12.5MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. * Witness Printer took 60.96ms. Allocated memory is still 140.5MB. Free memory was 103.3MB in the beginning and 98.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. 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: 168]: 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 8 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 326 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 1082 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 682 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 400 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred in iteration=4, InterpolantAutomatonStates: 25, 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, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 379 PreInvPairs, 445 NumberOfFragments, 215 HoareAnnotationTreeSize, 379 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 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: 443]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 415]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == systemActive) && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 310]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 422]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 213]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 408]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 336]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 494]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 265]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 433]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 337]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 RESULT: Ultimate proved your program to be correct! [2022-07-13 17:57:30,811 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