./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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_product19.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 e25743107029d12d34dddb50b6115a3bfc10c36f90a80b04d3daa9d63cbcdce5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:17:17,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:17:17,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:17:17,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:17:17,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:17:17,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:17:17,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:17:17,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:17:17,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:17:17,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:17:17,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:17:17,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:17:17,800 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:17:17,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:17:17,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:17:17,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:17:17,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:17:17,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:17:17,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:17:17,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:17:17,808 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:17:17,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:17:17,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:17:17,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:17:17,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:17:17,814 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:17:17,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:17:17,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:17:17,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:17:17,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:17:17,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:17:17,817 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:17:17,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:17:17,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:17:17,819 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:17:17,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:17:17,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:17:17,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:17:17,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:17:17,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:17:17,822 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:17:17,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:17:17,827 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:17:17,857 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:17:17,857 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:17:17,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:17:17,858 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:17:17,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:17:17,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:17:17,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:17:17,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:17:17,859 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:17:17,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:17:17,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:17:17,861 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:17:17,861 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:17:17,861 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:17:17,861 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:17:17,861 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:17:17,862 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:17:17,862 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:17:17,862 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:17:17,862 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:17:17,862 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:17:17,863 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:17:17,863 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:17:17,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:17:17,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:17:17,864 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:17:17,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:17:17,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:17:17,864 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:17:17,864 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:17:17,865 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:17:17,865 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:17:17,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:17:17,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e25743107029d12d34dddb50b6115a3bfc10c36f90a80b04d3daa9d63cbcdce5 [2022-07-12 06:17:18,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:17:18,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:17:18,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:17:18,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:17:18,129 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:17:18,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2022-07-12 06:17:18,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca4e2ea8/2e0405d3633c495598ecbf9b50da4a3b/FLAGf1ae0a60c [2022-07-12 06:17:18,667 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:17:18,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2022-07-12 06:17:18,685 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca4e2ea8/2e0405d3633c495598ecbf9b50da4a3b/FLAGf1ae0a60c [2022-07-12 06:17:19,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca4e2ea8/2e0405d3633c495598ecbf9b50da4a3b [2022-07-12 06:17:19,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:17:19,063 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:17:19,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:17:19,066 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:17:19,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:17:19,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,070 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e207ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19, skipping insertion in model container [2022-07-12 06:17:19,070 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:17:19,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:17:19,258 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_product19.cil.c[2044,2057] [2022-07-12 06:17:19,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:17:19,353 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:17:19,364 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_product19.cil.c[2044,2057] [2022-07-12 06:17:19,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:17:19,423 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:17:19,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19 WrapperNode [2022-07-12 06:17:19,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:17:19,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:17:19,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:17:19,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:17:19,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,492 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 216 [2022-07-12 06:17:19,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:17:19,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:17:19,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:17:19,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:17:19,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:17:19,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:17:19,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:17:19,545 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:17:19,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (1/1) ... [2022-07-12 06:17:19,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:17:19,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:17:19,580 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) [2022-07-12 06:17:19,581 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 [2022-07-12 06:17:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:17:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:17:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:17:19,613 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:17:19,613 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:17:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:17:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:17:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-12 06:17:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-12 06:17:19,614 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:17:19,614 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:17:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-12 06:17:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-12 06:17:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:17:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:17:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:17:19,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:17:19,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:17:19,686 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:17:19,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:17:19,884 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:17:19,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:17:19,890 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:17:19,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:17:19 BoogieIcfgContainer [2022-07-12 06:17:19,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:17:19,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:17:19,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:17:19,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:17:19,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:17:19" (1/3) ... [2022-07-12 06:17:19,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6847fed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:17:19, skipping insertion in model container [2022-07-12 06:17:19,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:17:19" (2/3) ... [2022-07-12 06:17:19,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6847fed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:17:19, skipping insertion in model container [2022-07-12 06:17:19,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:17:19" (3/3) ... [2022-07-12 06:17:19,899 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2022-07-12 06:17:19,911 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:17:19,912 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:17:19,973 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:17:19,981 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@7d807bff, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7b6d5427 [2022-07-12 06:17:19,982 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:17:19,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 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) [2022-07-12 06:17:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-12 06:17:20,004 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:20,005 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] [2022-07-12 06:17:20,006 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:20,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:20,017 INFO L85 PathProgramCache]: Analyzing trace with hash 233664886, now seen corresponding path program 1 times [2022-07-12 06:17:20,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:20,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329010392] [2022-07-12 06:17:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:20,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:17:20,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:20,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329010392] [2022-07-12 06:17:20,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329010392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:20,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:20,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:17:20,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143748513] [2022-07-12 06:17:20,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:20,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:17:20,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:20,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:17:20,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:17:20,280 INFO L87 Difference]: Start difference. First operand has 80 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 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 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) [2022-07-12 06:17:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:20,312 INFO L93 Difference]: Finished difference Result 152 states and 205 transitions. [2022-07-12 06:17:20,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:17:20,316 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 [2022-07-12 06:17:20,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:20,324 INFO L225 Difference]: With dead ends: 152 [2022-07-12 06:17:20,326 INFO L226 Difference]: Without dead ends: 71 [2022-07-12 06:17:20,332 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 [2022-07-12 06:17:20,335 INFO L413 NwaCegarLoop]: 99 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, 99 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 [2022-07-12 06:17:20,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:17:20,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-12 06:17:20,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-07-12 06:17:20,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 59 states have internal predecessors, (69), 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) [2022-07-12 06:17:20,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2022-07-12 06:17:20,369 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 23 [2022-07-12 06:17:20,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:20,369 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2022-07-12 06:17:20,370 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) [2022-07-12 06:17:20,370 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2022-07-12 06:17:20,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-12 06:17:20,372 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:20,372 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] [2022-07-12 06:17:20,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:17:20,373 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:20,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:20,374 INFO L85 PathProgramCache]: Analyzing trace with hash 962070603, now seen corresponding path program 1 times [2022-07-12 06:17:20,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:20,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804314960] [2022-07-12 06:17:20,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:20,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:20,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:17:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:20,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:20,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804314960] [2022-07-12 06:17:20,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804314960] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:20,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:20,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:17:20,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804123959] [2022-07-12 06:17:20,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:20,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:17:20,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:20,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:17:20,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:17:20,487 INFO L87 Difference]: Start difference. First operand 71 states and 90 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) [2022-07-12 06:17:20,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:20,503 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2022-07-12 06:17:20,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:17:20,505 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 [2022-07-12 06:17:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:20,509 INFO L225 Difference]: With dead ends: 104 [2022-07-12 06:17:20,509 INFO L226 Difference]: Without dead ends: 62 [2022-07-12 06:17:20,510 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 [2022-07-12 06:17:20,511 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 133 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 [2022-07-12 06:17:20,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-12 06:17:20,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-12 06:17:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-07-12 06:17:20,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 53 states have internal predecessors, (62), 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) [2022-07-12 06:17:20,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-07-12 06:17:20,526 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 24 [2022-07-12 06:17:20,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:20,527 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-07-12 06:17:20,527 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) [2022-07-12 06:17:20,527 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-07-12 06:17:20,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-12 06:17:20,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:20,528 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] [2022-07-12 06:17:20,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:17:20,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1633759331, now seen corresponding path program 1 times [2022-07-12 06:17:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780363197] [2022-07-12 06:17:20,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:20,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:17:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:20,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:20,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780363197] [2022-07-12 06:17:20,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780363197] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:20,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:20,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:20,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078759383] [2022-07-12 06:17:20,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:20,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:20,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:20,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:20,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:20,666 INFO L87 Difference]: Start difference. First operand 62 states and 78 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) [2022-07-12 06:17:20,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:20,848 INFO L93 Difference]: Finished difference Result 213 states and 275 transitions. [2022-07-12 06:17:20,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:17:20,849 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 [2022-07-12 06:17:20,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:20,851 INFO L225 Difference]: With dead ends: 213 [2022-07-12 06:17:20,851 INFO L226 Difference]: Without dead ends: 158 [2022-07-12 06:17:20,852 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 [2022-07-12 06:17:20,853 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 163 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:20,854 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 423 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:17:20,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-12 06:17:20,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2022-07-12 06:17:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 127 states have internal predecessors, (153), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-07-12 06:17:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 196 transitions. [2022-07-12 06:17:20,883 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 196 transitions. Word has length 28 [2022-07-12 06:17:20,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:20,883 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 196 transitions. [2022-07-12 06:17:20,884 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) [2022-07-12 06:17:20,884 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 196 transitions. [2022-07-12 06:17:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-12 06:17:20,885 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:20,885 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] [2022-07-12 06:17:20,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:17:20,886 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:20,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:20,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1210161126, now seen corresponding path program 1 times [2022-07-12 06:17:20,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:20,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123792456] [2022-07-12 06:17:20,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:20,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-12 06:17:20,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:17:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:21,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:21,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:21,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123792456] [2022-07-12 06:17:21,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123792456] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:21,005 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:21,005 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:21,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207671515] [2022-07-12 06:17:21,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:21,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:21,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:21,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:21,007 INFO L87 Difference]: Start difference. First operand 152 states and 196 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) [2022-07-12 06:17:21,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:21,111 INFO L93 Difference]: Finished difference Result 443 states and 584 transitions. [2022-07-12 06:17:21,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:17:21,112 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 [2022-07-12 06:17:21,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:21,121 INFO L225 Difference]: With dead ends: 443 [2022-07-12 06:17:21,122 INFO L226 Difference]: Without dead ends: 298 [2022-07-12 06:17:21,126 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 [2022-07-12 06:17:21,131 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 51 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 375 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 [2022-07-12 06:17:21,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 375 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:17:21,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-07-12 06:17:21,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 289. [2022-07-12 06:17:21,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 212 states have (on average 1.3349056603773586) internal successors, (283), 239 states have internal predecessors, (283), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (47), 30 states have call predecessors, (47), 42 states have call successors, (47) [2022-07-12 06:17:21,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 372 transitions. [2022-07-12 06:17:21,164 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 372 transitions. Word has length 33 [2022-07-12 06:17:21,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:21,165 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 372 transitions. [2022-07-12 06:17:21,165 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) [2022-07-12 06:17:21,165 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 372 transitions. [2022-07-12 06:17:21,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-12 06:17:21,167 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:17:21,167 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] [2022-07-12 06:17:21,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:17:21,168 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:17:21,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:17:21,169 INFO L85 PathProgramCache]: Analyzing trace with hash -618871306, now seen corresponding path program 1 times [2022-07-12 06:17:21,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:17:21,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685540879] [2022-07-12 06:17:21,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:17:21,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:17:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:21,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 06:17:21,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:21,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 06:17:21,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:21,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-12 06:17:21,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:17:21,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 06:17:21,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:17:21,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685540879] [2022-07-12 06:17:21,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685540879] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:17:21,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:17:21,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:17:21,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031297134] [2022-07-12 06:17:21,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:17:21,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:17:21,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:17:21,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:17:21,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:17:21,308 INFO L87 Difference]: Start difference. First operand 289 states and 372 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) [2022-07-12 06:17:21,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:17:21,404 INFO L93 Difference]: Finished difference Result 514 states and 668 transitions. [2022-07-12 06:17:21,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:17:21,404 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 [2022-07-12 06:17:21,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:17:21,405 INFO L225 Difference]: With dead ends: 514 [2022-07-12 06:17:21,405 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 06:17:21,407 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 [2022-07-12 06:17:21,415 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:17:21,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:17:21,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 06:17:21,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 06:17:21,418 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) [2022-07-12 06:17:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 06:17:21,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-07-12 06:17:21,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:17:21,418 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 06:17:21,418 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) [2022-07-12 06:17:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 06:17:21,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 06:17:21,422 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:17:21,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:17:21,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 06:17:21,972 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 757 764) the Hoare annotation is: true [2022-07-12 06:17:21,972 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 757 764) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 757 764) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 716 722) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 716 722) the Hoare annotation is: true [2022-07-12 06:17:21,973 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 120 131) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 120 131) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point L696-1(lines 695 714) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 692 715) no Hoare annotation was computed. [2022-07-12 06:17:21,973 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:17:21,973 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2022-07-12 06:17:21,974 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:17:21,974 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2022-07-12 06:17:21,974 INFO L895 garLoopResultBuilder]: At program point L61-1(lines 53 77) 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))))) [2022-07-12 06:17:21,974 INFO L895 garLoopResultBuilder]: At program point L743(line 743) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-12 06:17:21,974 INFO L895 garLoopResultBuilder]: At program point L743-1(lines 724 748) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-12 06:17:21,974 INFO L899 garLoopResultBuilder]: For program point L830(lines 830 834) no Hoare annotation was computed. [2022-07-12 06:17:21,974 INFO L899 garLoopResultBuilder]: For program point L830-2(lines 830 834) no Hoare annotation was computed. [2022-07-12 06:17:21,974 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-12 06:17:21,974 INFO L895 garLoopResultBuilder]: At program point L178(lines 173 181) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:17:21,975 INFO L895 garLoopResultBuilder]: At program point L781(lines 776 784) 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))))) [2022-07-12 06:17:21,975 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-07-12 06:17:21,975 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 96 107) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:17:21,975 INFO L899 garLoopResultBuilder]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2022-07-12 06:17:21,975 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 740) no Hoare annotation was computed. [2022-07-12 06:17:21,975 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-12 06:17:21,975 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-07-12 06:17:21,975 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 745) no Hoare annotation was computed. [2022-07-12 06:17:21,975 INFO L895 garLoopResultBuilder]: At program point L84(lines 79 86) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:17:21,975 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 692 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-12 06:17:21,975 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 692 715) no Hoare annotation was computed. [2022-07-12 06:17:21,976 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2022-07-12 06:17:21,976 INFO L895 garLoopResultBuilder]: At program point L836(lines 821 839) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:17:21,976 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2022-07-12 06:17:21,976 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 589 618) the Hoare annotation is: true [2022-07-12 06:17:21,976 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2022-07-12 06:17:21,976 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2022-07-12 06:17:21,976 INFO L899 garLoopResultBuilder]: For program point L600(line 600) no Hoare annotation was computed. [2022-07-12 06:17:21,976 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2022-07-12 06:17:21,976 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2022-07-12 06:17:21,976 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2022-07-12 06:17:21,976 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2022-07-12 06:17:21,977 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2022-07-12 06:17:21,977 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 132 140) the Hoare annotation is: true [2022-07-12 06:17:21,977 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 132 140) no Hoare annotation was computed. [2022-07-12 06:17:21,977 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2022-07-12 06:17:21,977 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 892) no Hoare annotation was computed. [2022-07-12 06:17:21,977 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 886 892) no Hoare annotation was computed. [2022-07-12 06:17:21,977 INFO L902 garLoopResultBuilder]: At program point L659(lines 652 661) the Hoare annotation is: true [2022-07-12 06:17:21,977 INFO L895 garLoopResultBuilder]: At program point L911(lines 866 913) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:17:21,977 INFO L895 garLoopResultBuilder]: At program point L878(line 878) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:17:21,977 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 679) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point L672-2(lines 672 679) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: false [2022-07-12 06:17:21,978 INFO L902 garLoopResultBuilder]: At program point L681(lines 662 684) the Hoare annotation is: true [2022-07-12 06:17:21,978 INFO L895 garLoopResultBuilder]: At program point L648(lines 644 650) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)) [2022-07-12 06:17:21,978 INFO L895 garLoopResultBuilder]: At program point L582(lines 577 585) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point L867(lines 866 913) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 06:17:21,978 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 909) no Hoare annotation was computed. [2022-07-12 06:17:21,979 INFO L895 garLoopResultBuilder]: At program point L574(lines 570 576) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-12 06:17:21,979 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:17:21,979 INFO L902 garLoopResultBuilder]: At program point L917(lines 856 921) the Hoare annotation is: true [2022-07-12 06:17:21,979 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 882) no Hoare annotation was computed. [2022-07-12 06:17:21,979 INFO L899 garLoopResultBuilder]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2022-07-12 06:17:21,979 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 872) no Hoare annotation was computed. [2022-07-12 06:17:21,980 INFO L895 garLoopResultBuilder]: At program point L567(lines 563 569) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-12 06:17:21,980 INFO L895 garLoopResultBuilder]: At program point L852(lines 840 854) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:17:21,980 INFO L895 garLoopResultBuilder]: At program point L914(lines 865 915) the Hoare annotation is: false [2022-07-12 06:17:21,980 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 850) no Hoare annotation was computed. [2022-07-12 06:17:21,980 INFO L899 garLoopResultBuilder]: For program point L844-1(lines 844 850) no Hoare annotation was computed. [2022-07-12 06:17:21,980 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 908) no Hoare annotation was computed. [2022-07-12 06:17:21,980 INFO L895 garLoopResultBuilder]: At program point L902-2(lines 896 909) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:17:21,980 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 108 119) no Hoare annotation was computed. [2022-07-12 06:17:21,981 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2022-07-12 06:17:21,981 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 108 119) the Hoare annotation is: true [2022-07-12 06:17:21,988 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-12 06:17:21,989 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:17:22,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:17:22 BoogieIcfgContainer [2022-07-12 06:17:22,018 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:17:22,018 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:17:22,018 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:17:22,019 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:17:22,019 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:17:19" (3/4) ... [2022-07-12 06:17:22,022 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 06:17:22,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-12 06:17:22,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-12 06:17:22,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-12 06:17:22,027 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-12 06:17:22,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-12 06:17:22,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-12 06:17:22,028 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-12 06:17:22,037 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-12 06:17:22,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-12 06:17:22,038 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 06:17:22,039 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 06:17:22,039 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 06:17:22,039 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:17:22,040 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:17:22,062 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-12 06:17:22,062 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-12 06:17:22,063 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:17:22,064 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-12 06:17:22,065 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-07-12 06:17:22,066 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-12 06:17:22,066 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:17:22,066 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:17:22,066 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:17:22,093 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:17:22,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:17:22,094 INFO L158 Benchmark]: Toolchain (without parser) took 3031.60ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 73.0MB in the beginning and 58.8MB in the end (delta: 14.3MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,095 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 56.6MB in the beginning and 56.5MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:17:22,095 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.05ms. Allocated memory is still 94.4MB. Free memory was 72.8MB in the beginning and 59.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.31ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 57.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,096 INFO L158 Benchmark]: Boogie Preprocessor took 50.29ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 55.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,096 INFO L158 Benchmark]: RCFGBuilder took 347.70ms. Allocated memory is still 94.4MB. Free memory was 55.6MB in the beginning and 40.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,097 INFO L158 Benchmark]: TraceAbstraction took 2124.31ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 39.7MB in the beginning and 64.0MB in the end (delta: -24.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,097 INFO L158 Benchmark]: Witness Printer took 75.56ms. Allocated memory is still 115.3MB. Free memory was 64.0MB in the beginning and 58.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:17:22,099 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 77.6MB. Free memory was 56.6MB in the beginning and 56.5MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.05ms. Allocated memory is still 94.4MB. Free memory was 72.8MB in the beginning and 59.7MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.31ms. Allocated memory is still 94.4MB. Free memory was 59.5MB in the beginning and 57.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.29ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 55.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 347.70ms. Allocated memory is still 94.4MB. Free memory was 55.6MB in the beginning and 40.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2124.31ms. Allocated memory was 94.4MB in the beginning and 115.3MB in the end (delta: 21.0MB). Free memory was 39.7MB in the beginning and 64.0MB in the end (delta: -24.3MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Witness Printer took 75.56ms. Allocated memory is still 115.3MB. Free memory was 64.0MB in the beginning and 58.8MB 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: 83]: 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, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 1154 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 750 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 404 mSDtfsCounter, 193 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=289occurred 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, 370 PreInvPairs, 436 NumberOfFragments, 215 HoareAnnotationTreeSize, 370 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s 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: 96]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 724]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 652]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2022-07-12 06:17:22,149 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