./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_product20.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 8c57aad23cdcf8081ba5352d473aea77ba42b47e93421a900d6921ce930c9593 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:00:06,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:00:06,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:00:06,680 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:00:06,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:00:06,681 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:00:06,684 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:00:06,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:00:06,688 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:00:06,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:00:06,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:00:06,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:00:06,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:00:06,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:00:06,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:00:06,700 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:00:06,701 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:00:06,702 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:00:06,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:00:06,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:00:06,708 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:00:06,709 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:00:06,710 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:00:06,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:00:06,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:00:06,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:00:06,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:00:06,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:00:06,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:00:06,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:00:06,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:00:06,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:00:06,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:00:06,721 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:00:06,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:00:06,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:00:06,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:00:06,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:00:06,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:00:06,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:00:06,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:00:06,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:00:06,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:00:06,756 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:00:06,757 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:00:06,757 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:00:06,757 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:00:06,758 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:00:06,758 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:00:06,759 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:00:06,759 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:00:06,759 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:00:06,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:00:06,760 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:00:06,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:00:06,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:00:06,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:00:06,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:00:06,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:00:06,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:00:06,761 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:00:06,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:00:06,761 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:00:06,761 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:00:06,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:00:06,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:00:06,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:00:06,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:00:06,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:00:06,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:00:06,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:00:06,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:00:06,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:00:06,763 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:00:06,763 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:00:06,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:00:06,764 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c57aad23cdcf8081ba5352d473aea77ba42b47e93421a900d6921ce930c9593 [2022-07-21 05:00:07,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:00:07,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:00:07,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:00:07,084 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:00:07,084 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:00:07,086 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2022-07-21 05:00:07,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b284371c/646cd3c121a4494d82513d32e4ff94a4/FLAGf83c1f052 [2022-07-21 05:00:07,526 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:00:07,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product20.cil.c [2022-07-21 05:00:07,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b284371c/646cd3c121a4494d82513d32e4ff94a4/FLAGf83c1f052 [2022-07-21 05:00:07,881 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b284371c/646cd3c121a4494d82513d32e4ff94a4 [2022-07-21 05:00:07,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:00:07,883 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:00:07,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:00:07,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:00:07,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:00:07,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:00:07" (1/1) ... [2022-07-21 05:00:07,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ebdf2b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:07, skipping insertion in model container [2022-07-21 05:00:07,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:00:07" (1/1) ... [2022-07-21 05:00:07,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:00:07,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:00:08,182 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_product20.cil.c[15113,15126] [2022-07-21 05:00:08,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:00:08,211 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:00:08,264 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_product20.cil.c[15113,15126] [2022-07-21 05:00:08,276 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:00:08,286 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:00:08,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08 WrapperNode [2022-07-21 05:00:08,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:00:08,289 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:00:08,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:00:08,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:00:08,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,340 INFO L137 Inliner]: procedures = 55, calls = 153, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 227 [2022-07-21 05:00:08,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:00:08,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:00:08,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:00:08,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:00:08,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:00:08,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:00:08,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:00:08,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:00:08,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (1/1) ... [2022-07-21 05:00:08,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:00:08,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:00:08,417 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) [2022-07-21 05:00:08,425 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 [2022-07-21 05:00:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:00:08,445 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-21 05:00:08,445 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-21 05:00:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:00:08,446 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:00:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:00:08,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:00:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-21 05:00:08,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-21 05:00:08,446 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:00:08,446 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:00:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-21 05:00:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-21 05:00:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:00:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:00:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:00:08,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:00:08,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:00:08,495 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:00:08,497 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:00:08,768 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:00:08,782 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:00:08,783 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:00:08,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:08 BoogieIcfgContainer [2022-07-21 05:00:08,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:00:08,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:00:08,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:00:08,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:00:08,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:00:07" (1/3) ... [2022-07-21 05:00:08,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715fd40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:00:08, skipping insertion in model container [2022-07-21 05:00:08,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:00:08" (2/3) ... [2022-07-21 05:00:08,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715fd40a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:00:08, skipping insertion in model container [2022-07-21 05:00:08,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:08" (3/3) ... [2022-07-21 05:00:08,792 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product20.cil.c [2022-07-21 05:00:08,802 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:00:08,802 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:00:08,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:00:08,849 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@45876ad0, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2c161c0a [2022-07-21 05:00:08,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:00:08,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 70 states have internal predecessors, (87), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-21 05:00:08,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:00:08,860 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:08,860 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] [2022-07-21 05:00:08,861 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash -533939434, now seen corresponding path program 1 times [2022-07-21 05:00:08,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:08,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764800605] [2022-07-21 05:00:08,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:08,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-21 05:00:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:09,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:09,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764800605] [2022-07-21 05:00:09,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764800605] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:09,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:09,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:00:09,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084997246] [2022-07-21 05:00:09,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:09,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:00:09,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:09,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:00:09,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:00:09,107 INFO L87 Difference]: Start difference. First operand has 83 states, 63 states have (on average 1.380952380952381) internal successors, (87), 70 states have internal predecessors, (87), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) 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) [2022-07-21 05:00:09,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:09,128 INFO L93 Difference]: Finished difference Result 157 states and 212 transitions. [2022-07-21 05:00:09,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:00:09,130 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 [2022-07-21 05:00:09,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:09,136 INFO L225 Difference]: With dead ends: 157 [2022-07-21 05:00:09,136 INFO L226 Difference]: Without dead ends: 74 [2022-07-21 05:00:09,139 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 [2022-07-21 05:00:09,141 INFO L413 NwaCegarLoop]: 103 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, 103 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 [2022-07-21 05:00:09,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-07-21 05:00:09,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-07-21 05:00:09,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 62 states have internal predecessors, (73), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-21 05:00:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2022-07-21 05:00:09,170 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 25 [2022-07-21 05:00:09,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:09,170 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2022-07-21 05:00:09,171 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) [2022-07-21 05:00:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2022-07-21 05:00:09,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-21 05:00:09,172 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:09,173 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] [2022-07-21 05:00:09,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:00:09,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:09,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:09,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1868756667, now seen corresponding path program 1 times [2022-07-21 05:00:09,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:09,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132387714] [2022-07-21 05:00:09,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:09,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:09,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 05:00:09,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:09,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:09,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132387714] [2022-07-21 05:00:09,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132387714] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:09,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:09,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:09,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382385163] [2022-07-21 05:00:09,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:09,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:09,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:09,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:09,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:09,244 INFO L87 Difference]: Start difference. First operand 74 states and 94 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) [2022-07-21 05:00:09,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:09,256 INFO L93 Difference]: Finished difference Result 108 states and 136 transitions. [2022-07-21 05:00:09,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:09,258 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 [2022-07-21 05:00:09,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:09,262 INFO L225 Difference]: With dead ends: 108 [2022-07-21 05:00:09,263 INFO L226 Difference]: Without dead ends: 65 [2022-07-21 05:00:09,263 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 [2022-07-21 05:00:09,265 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 17 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 140 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 [2022-07-21 05:00:09,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-07-21 05:00:09,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-07-21 05:00:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 50 states have (on average 1.32) internal successors, (66), 56 states have internal predecessors, (66), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 05:00:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 82 transitions. [2022-07-21 05:00:09,280 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 82 transitions. Word has length 26 [2022-07-21 05:00:09,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:09,280 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 82 transitions. [2022-07-21 05:00:09,281 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) [2022-07-21 05:00:09,281 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2022-07-21 05:00:09,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-21 05:00:09,283 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:09,283 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] [2022-07-21 05:00:09,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:00:09,283 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:09,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:09,284 INFO L85 PathProgramCache]: Analyzing trace with hash 1886146375, now seen corresponding path program 1 times [2022-07-21 05:00:09,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:09,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489984314] [2022-07-21 05:00:09,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:09,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 05:00:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:09,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:09,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489984314] [2022-07-21 05:00:09,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489984314] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:09,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:09,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:00:09,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100989246] [2022-07-21 05:00:09,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:09,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:00:09,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:00:09,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:00:09,372 INFO L87 Difference]: Start difference. First operand 65 states and 82 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) [2022-07-21 05:00:09,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:09,421 INFO L93 Difference]: Finished difference Result 177 states and 229 transitions. [2022-07-21 05:00:09,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:00:09,421 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 [2022-07-21 05:00:09,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:09,432 INFO L225 Difference]: With dead ends: 177 [2022-07-21 05:00:09,432 INFO L226 Difference]: Without dead ends: 120 [2022-07-21 05:00:09,433 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 [2022-07-21 05:00:09,434 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 74 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:09,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 173 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:00:09,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-07-21 05:00:09,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 117. [2022-07-21 05:00:09,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 88 states have (on average 1.3522727272727273) internal successors, (119), 99 states have internal predecessors, (119), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-21 05:00:09,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 151 transitions. [2022-07-21 05:00:09,452 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 151 transitions. Word has length 31 [2022-07-21 05:00:09,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:09,452 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 151 transitions. [2022-07-21 05:00:09,453 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) [2022-07-21 05:00:09,453 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 151 transitions. [2022-07-21 05:00:09,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 05:00:09,455 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:09,455 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] [2022-07-21 05:00:09,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:00:09,456 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:09,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:09,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1556691395, now seen corresponding path program 1 times [2022-07-21 05:00:09,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:09,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461163015] [2022-07-21 05:00:09,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:09,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:09,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 05:00:09,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:09,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:09,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461163015] [2022-07-21 05:00:09,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461163015] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:09,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:09,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:00:09,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751079893] [2022-07-21 05:00:09,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:09,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:00:09,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:09,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:00:09,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:00:09,567 INFO L87 Difference]: Start difference. First operand 117 states and 151 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) [2022-07-21 05:00:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:09,670 INFO L93 Difference]: Finished difference Result 333 states and 438 transitions. [2022-07-21 05:00:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 05:00:09,671 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 [2022-07-21 05:00:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:09,673 INFO L225 Difference]: With dead ends: 333 [2022-07-21 05:00:09,676 INFO L226 Difference]: Without dead ends: 224 [2022-07-21 05:00:09,676 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 [2022-07-21 05:00:09,677 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 51 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 05:00:09,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 394 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 05:00:09,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-07-21 05:00:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2022-07-21 05:00:09,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.3354037267080745) internal successors, (215), 182 states have internal predecessors, (215), 32 states have call successors, (32), 24 states have call predecessors, (32), 24 states have return successors, (34), 22 states have call predecessors, (34), 32 states have call successors, (34) [2022-07-21 05:00:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 281 transitions. [2022-07-21 05:00:09,725 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 281 transitions. Word has length 34 [2022-07-21 05:00:09,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:09,726 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 281 transitions. [2022-07-21 05:00:09,726 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) [2022-07-21 05:00:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 281 transitions. [2022-07-21 05:00:09,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-21 05:00:09,728 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:00:09,728 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] [2022-07-21 05:00:09,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:00:09,729 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:00:09,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:00:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -2009552801, now seen corresponding path program 1 times [2022-07-21 05:00:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:00:09,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469124723] [2022-07-21 05:00:09,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:00:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:00:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 05:00:09,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-21 05:00:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:00:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:00:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:00:09,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469124723] [2022-07-21 05:00:09,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469124723] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:00:09,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:00:09,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:00:09,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715146356] [2022-07-21 05:00:09,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:00:09,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:00:09,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:00:09,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:00:09,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:00:09,798 INFO L87 Difference]: Start difference. First operand 218 states and 281 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) [2022-07-21 05:00:09,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:00:09,905 INFO L93 Difference]: Finished difference Result 378 states and 487 transitions. [2022-07-21 05:00:09,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:00:09,905 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 [2022-07-21 05:00:09,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:00:09,906 INFO L225 Difference]: With dead ends: 378 [2022-07-21 05:00:09,906 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 05:00:09,907 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 [2022-07-21 05:00:09,911 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 [2022-07-21 05:00:09,912 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] [2022-07-21 05:00:09,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 05:00:09,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 05:00:09,914 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) [2022-07-21 05:00:09,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 05:00:09,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-07-21 05:00:09,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:00:09,915 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 05:00:09,915 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) [2022-07-21 05:00:09,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 05:00:09,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 05:00:09,918 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:00:09,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:00:09,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 05:00:10,270 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 841 848) the Hoare annotation is: true [2022-07-21 05:00:10,271 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 841 848) no Hoare annotation was computed. [2022-07-21 05:00:10,271 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 841 848) no Hoare annotation was computed. [2022-07-21 05:00:10,271 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 800 806) no Hoare annotation was computed. [2022-07-21 05:00:10,271 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 800 806) the Hoare annotation is: true [2022-07-21 05:00:10,271 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 162 173) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-21 05:00:10,272 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 162 173) no Hoare annotation was computed. [2022-07-21 05:00:10,272 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 162 173) no Hoare annotation was computed. [2022-07-21 05:00:10,272 INFO L895 garLoopResultBuilder]: At program point L865(lines 860 868) 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))))) [2022-07-21 05:00:10,272 INFO L895 garLoopResultBuilder]: At program point L696(lines 691 698) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:10,272 INFO L899 garLoopResultBuilder]: For program point L787-1(lines 787 793) no Hoare annotation was computed. [2022-07-21 05:00:10,272 INFO L899 garLoopResultBuilder]: For program point L816(lines 816 824) no Hoare annotation was computed. [2022-07-21 05:00:10,272 INFO L899 garLoopResultBuilder]: For program point L812(lines 812 829) no Hoare annotation was computed. [2022-07-21 05:00:10,273 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 776 799) no Hoare annotation was computed. [2022-07-21 05:00:10,273 INFO L895 garLoopResultBuilder]: At program point L920(lines 905 923) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:10,273 INFO L899 garLoopResultBuilder]: For program point L780-1(lines 779 798) no Hoare annotation was computed. [2022-07-21 05:00:10,273 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2022-07-21 05:00:10,273 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 87) no Hoare annotation was computed. [2022-07-21 05:00:10,273 INFO L895 garLoopResultBuilder]: At program point L70-1(lines 62 90) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~0#1| 0)) (or .cse0 (= ~pumpRunning~0 0)))) [2022-07-21 05:00:10,273 INFO L895 garLoopResultBuilder]: At program point L822(line 822) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:10,274 INFO L895 garLoopResultBuilder]: At program point L818(line 818) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:10,274 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-07-21 05:00:10,274 INFO L895 garLoopResultBuilder]: At program point L220(lines 215 223) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:10,274 INFO L895 garLoopResultBuilder]: At program point L827(line 827) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:10,274 INFO L895 garLoopResultBuilder]: At program point L827-1(lines 808 832) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:10,274 INFO L899 garLoopResultBuilder]: For program point L695(line 695) no Hoare annotation was computed. [2022-07-21 05:00:10,274 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 918) no Hoare annotation was computed. [2022-07-21 05:00:10,274 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 918) no Hoare annotation was computed. [2022-07-21 05:00:10,275 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 776 799) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:10,275 INFO L899 garLoopResultBuilder]: For program point L142(lines 142 146) no Hoare annotation was computed. [2022-07-21 05:00:10,275 INFO L895 garLoopResultBuilder]: At program point L142-2(lines 138 149) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-21 05:00:10,275 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 776 799) no Hoare annotation was computed. [2022-07-21 05:00:10,275 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 695) no Hoare annotation was computed. [2022-07-21 05:00:10,275 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-21 05:00:10,275 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2022-07-21 05:00:10,275 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 227 256) no Hoare annotation was computed. [2022-07-21 05:00:10,276 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 227 256) the Hoare annotation is: true [2022-07-21 05:00:10,276 INFO L902 garLoopResultBuilder]: At program point L252(lines 227 256) the Hoare annotation is: true [2022-07-21 05:00:10,276 INFO L899 garLoopResultBuilder]: For program point L248(line 248) no Hoare annotation was computed. [2022-07-21 05:00:10,276 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 245) no Hoare annotation was computed. [2022-07-21 05:00:10,276 INFO L902 garLoopResultBuilder]: At program point L241-1(lines 241 245) the Hoare annotation is: true [2022-07-21 05:00:10,276 INFO L899 garLoopResultBuilder]: For program point L238(line 238) no Hoare annotation was computed. [2022-07-21 05:00:10,276 INFO L902 garLoopResultBuilder]: At program point L237-2(lines 237 251) the Hoare annotation is: true [2022-07-21 05:00:10,276 INFO L902 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: true [2022-07-21 05:00:10,277 INFO L899 garLoopResultBuilder]: For program point L233-1(line 233) no Hoare annotation was computed. [2022-07-21 05:00:10,277 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 174 182) the Hoare annotation is: true [2022-07-21 05:00:10,277 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 174 182) no Hoare annotation was computed. [2022-07-21 05:00:10,277 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 174 182) no Hoare annotation was computed. [2022-07-21 05:00:10,277 INFO L902 garLoopResultBuilder]: At program point L320(lines 301 323) the Hoare annotation is: true [2022-07-21 05:00:10,277 INFO L895 garLoopResultBuilder]: At program point L762(lines 711 763) the Hoare annotation is: false [2022-07-21 05:00:10,277 INFO L895 garLoopResultBuilder]: At program point L944(lines 939 946) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:10,277 INFO L895 garLoopResultBuilder]: At program point L110(lines 106 112) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:10,278 INFO L899 garLoopResultBuilder]: For program point L750(lines 750 756) no Hoare annotation was computed. [2022-07-21 05:00:10,278 INFO L895 garLoopResultBuilder]: At program point L750-2(lines 742 757) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:10,278 INFO L899 garLoopResultBuilder]: For program point L713(lines 712 761) no Hoare annotation was computed. [2022-07-21 05:00:10,278 INFO L895 garLoopResultBuilder]: At program point L936(lines 924 938) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:10,278 INFO L899 garLoopResultBuilder]: For program point L742(lines 742 757) no Hoare annotation was computed. [2022-07-21 05:00:10,278 INFO L899 garLoopResultBuilder]: For program point L928(lines 928 934) no Hoare annotation was computed. [2022-07-21 05:00:10,278 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 05:00:10,278 INFO L899 garLoopResultBuilder]: For program point L928-1(lines 928 934) no Hoare annotation was computed. [2022-07-21 05:00:10,278 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:10,279 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 05:00:10,279 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 05:00:10,279 INFO L895 garLoopResultBuilder]: At program point L759(lines 712 761) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:10,279 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2022-07-21 05:00:10,279 INFO L899 garLoopResultBuilder]: For program point L722-1(lines 722 728) no Hoare annotation was computed. [2022-07-21 05:00:10,279 INFO L899 garLoopResultBuilder]: For program point L714(lines 714 718) no Hoare annotation was computed. [2022-07-21 05:00:10,279 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 05:00:10,279 INFO L902 garLoopResultBuilder]: At program point L298(lines 290 300) the Hoare annotation is: true [2022-07-21 05:00:10,280 INFO L895 garLoopResultBuilder]: At program point L930(line 930) the Hoare annotation is: false [2022-07-21 05:00:10,280 INFO L895 garLoopResultBuilder]: At program point L286(lines 282 288) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:10,280 INFO L895 garLoopResultBuilder]: At program point L125(lines 120 128) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:10,280 INFO L902 garLoopResultBuilder]: At program point L765(lines 702 769) the Hoare annotation is: true [2022-07-21 05:00:10,280 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 738) no Hoare annotation was computed. [2022-07-21 05:00:10,280 INFO L895 garLoopResultBuilder]: At program point L59(lines 54 61) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:10,280 INFO L899 garLoopResultBuilder]: For program point L732-1(lines 732 738) no Hoare annotation was computed. [2022-07-21 05:00:10,280 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 318) no Hoare annotation was computed. [2022-07-21 05:00:10,280 INFO L895 garLoopResultBuilder]: At program point L117(lines 113 119) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-21 05:00:10,281 INFO L899 garLoopResultBuilder]: For program point L311-2(lines 311 318) no Hoare annotation was computed. [2022-07-21 05:00:10,281 INFO L895 garLoopResultBuilder]: At program point L724(line 724) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:00:10,281 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 150 161) no Hoare annotation was computed. [2022-07-21 05:00:10,281 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 150 161) no Hoare annotation was computed. [2022-07-21 05:00:10,281 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 150 161) the Hoare annotation is: true [2022-07-21 05:00:10,283 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-21 05:00:10,285 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:00:10,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:00:10 BoogieIcfgContainer [2022-07-21 05:00:10,297 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:00:10,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:00:10,297 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:00:10,297 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:00:10,298 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:00:08" (3/4) ... [2022-07-21 05:00:10,300 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 05:00:10,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-21 05:00:10,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-21 05:00:10,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-21 05:00:10,304 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-21 05:00:10,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-21 05:00:10,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-21 05:00:10,305 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-21 05:00:10,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-21 05:00:10,309 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 05:00:10,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 05:00:10,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 05:00:10,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 05:00:10,310 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:00:10,311 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:00:10,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:10,327 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || pumpRunning == 0 [2022-07-21 05:00:10,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) [2022-07-21 05:00:10,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-21 05:00:10,328 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:10,329 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:10,329 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-21 05:00:10,340 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:00:10,340 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:00:10,341 INFO L158 Benchmark]: Toolchain (without parser) took 2456.99ms. Allocated memory was 56.6MB in the beginning and 92.3MB in the end (delta: 35.7MB). Free memory was 33.9MB in the beginning and 52.6MB in the end (delta: -18.7MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:10,341 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:00:10,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.94ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.8MB in the beginning and 51.4MB in the end (delta: -17.6MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-07-21 05:00:10,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.44ms. Allocated memory is still 75.5MB. Free memory was 51.4MB in the beginning and 49.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:00:10,342 INFO L158 Benchmark]: Boogie Preprocessor took 50.72ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 47.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:00:10,342 INFO L158 Benchmark]: RCFGBuilder took 391.92ms. Allocated memory is still 75.5MB. Free memory was 47.5MB in the beginning and 51.0MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-21 05:00:10,342 INFO L158 Benchmark]: TraceAbstraction took 1511.10ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.4MB in the beginning and 57.7MB in the end (delta: -7.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-07-21 05:00:10,342 INFO L158 Benchmark]: Witness Printer took 42.98ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 52.6MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-21 05:00:10,344 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 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 42.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.94ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 33.8MB in the beginning and 51.4MB in the end (delta: -17.6MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.44ms. Allocated memory is still 75.5MB. Free memory was 51.4MB in the beginning and 49.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.72ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 47.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 391.92ms. Allocated memory is still 75.5MB. Free memory was 47.5MB in the beginning and 51.0MB in the end (delta: -3.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1511.10ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.4MB in the beginning and 57.7MB in the end (delta: -7.2MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 42.98ms. Allocated memory is still 92.3MB. Free memory was 57.7MB in the beginning and 52.6MB in the end (delta: 5.1MB). 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: 695]: 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, 83 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, 198 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 191 mSDsluCounter, 942 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 518 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 424 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=218occurred 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, 38 LocationsWithAnnotation, 294 PreInvPairs, 338 NumberOfFragments, 216 HoareAnnotationTreeSize, 294 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 38 FomulaSimplificationsInter, 915 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, 277 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: 106]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 712]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 924]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 711]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 808]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || pumpRunning == 0 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 860]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) && (!(\old(pumpRunning) == 0) || pumpRunning == 0) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive RESULT: Ultimate proved your program to be correct! [2022-07-21 05:00:10,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE