./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:23:33,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:23:33,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:23:34,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:23:34,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:23:34,031 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:23:34,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:23:34,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:23:34,036 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:23:34,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:23:34,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:23:34,038 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:23:34,040 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:23:34,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:23:34,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:23:34,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:23:34,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:23:34,048 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:23:34,050 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:23:34,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:23:34,055 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:23:34,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:23:34,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:23:34,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:23:34,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:23:34,061 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:23:34,064 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:23:34,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:23:34,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:23:34,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:23:34,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:23:34,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:23:34,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:23:34,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:23:34,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:23:34,070 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:23:34,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:23:34,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:23:34,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:23:34,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:23:34,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:23:34,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:23:34,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:23:34,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:23:34,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:23:34,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:23:34,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:23:34,100 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:23:34,100 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:23:34,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:23:34,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:23:34,101 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:23:34,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:23:34,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:23:34,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:23:34,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:23:34,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:23:34,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:23:34,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:23:34,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:23:34,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:23:34,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:23:34,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:23:34,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:23:34,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:23:34,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:23:34,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:23:34,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:34,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:23:34,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:23:34,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:23:34,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:23:34,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:23:34,106 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:23:34,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:23:34,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:23:34,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 [2022-07-19 17:23:34,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:23:34,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:23:34,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:23:34,337 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:23:34,338 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:23:34,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2022-07-19 17:23:34,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b12c893/997ee01cddb948a3a13d22a6149becd2/FLAGa7566f038 [2022-07-19 17:23:34,837 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:23:34,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2022-07-19 17:23:34,852 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b12c893/997ee01cddb948a3a13d22a6149becd2/FLAGa7566f038 [2022-07-19 17:23:35,201 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07b12c893/997ee01cddb948a3a13d22a6149becd2 [2022-07-19 17:23:35,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:23:35,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:23:35,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:35,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:23:35,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:23:35,209 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b9c1e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35, skipping insertion in model container [2022-07-19 17:23:35,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:23:35,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:23:35,485 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_product07.cil.c[6162,6175] [2022-07-19 17:23:35,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:35,562 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:23:35,596 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_product07.cil.c[6162,6175] [2022-07-19 17:23:35,625 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:35,638 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:23:35,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35 WrapperNode [2022-07-19 17:23:35,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:35,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:35,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:23:35,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:23:35,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,665 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,688 INFO L137 Inliner]: procedures = 52, calls = 151, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 212 [2022-07-19 17:23:35,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:35,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:23:35,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:23:35,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:23:35,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:23:35,715 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:23:35,715 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:23:35,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:23:35,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (1/1) ... [2022-07-19 17:23:35,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:35,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:35,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:23:35,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:23:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:23:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:23:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:23:35,768 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:23:35,768 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:23:35,769 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:23:35,769 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:23:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:23:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:23:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:23:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:23:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:23:35,771 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:23:35,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:23:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:23:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:23:35,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:23:35,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:23:35,818 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:23:35,819 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:23:36,112 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:23:36,117 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:23:36,117 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:23:36,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:36 BoogieIcfgContainer [2022-07-19 17:23:36,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:23:36,120 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:23:36,120 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:23:36,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:23:36,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:23:35" (1/3) ... [2022-07-19 17:23:36,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f8db19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:36, skipping insertion in model container [2022-07-19 17:23:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:35" (2/3) ... [2022-07-19 17:23:36,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f8db19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:36, skipping insertion in model container [2022-07-19 17:23:36,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:36" (3/3) ... [2022-07-19 17:23:36,132 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2022-07-19 17:23:36,142 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:23:36,142 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:23:36,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:23:36,196 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@5b2a7c1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@609cebdc [2022-07-19 17:23:36,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:23:36,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-07-19 17:23:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-19 17:23:36,209 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:36,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:36,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:36,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:36,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2077906994, now seen corresponding path program 1 times [2022-07-19 17:23:36,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:36,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326518019] [2022-07-19 17:23:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:36,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:36,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:23:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:36,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:36,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326518019] [2022-07-19 17:23:36,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326518019] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:36,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:36,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:23:36,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137116300] [2022-07-19 17:23:36,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:36,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:23:36,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:36,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:23:36,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:36,407 INFO L87 Difference]: Start difference. First operand has 81 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:36,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:36,426 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2022-07-19 17:23:36,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:23:36,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-07-19 17:23:36,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:36,432 INFO L225 Difference]: With dead ends: 153 [2022-07-19 17:23:36,433 INFO L226 Difference]: Without dead ends: 72 [2022-07-19 17:23:36,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:36,437 INFO L413 NwaCegarLoop]: 101 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, 101 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:36,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:36,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-19 17:23:36,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-07-19 17:23:36,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 59 states have internal predecessors, (69), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-19 17:23:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2022-07-19 17:23:36,463 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 25 [2022-07-19 17:23:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:36,464 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2022-07-19 17:23:36,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:36,464 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2022-07-19 17:23:36,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-19 17:23:36,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:36,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:36,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:23:36,468 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:36,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:36,468 INFO L85 PathProgramCache]: Analyzing trace with hash 525951112, now seen corresponding path program 1 times [2022-07-19 17:23:36,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:36,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642815691] [2022-07-19 17:23:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:36,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:36,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-19 17:23:36,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:36,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:36,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642815691] [2022-07-19 17:23:36,546 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642815691] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:36,546 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:36,546 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:36,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629401187] [2022-07-19 17:23:36,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:36,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:36,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:36,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:36,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:36,548 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:36,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:36,558 INFO L93 Difference]: Finished difference Result 105 states and 133 transitions. [2022-07-19 17:23:36,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:36,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-07-19 17:23:36,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:36,560 INFO L225 Difference]: With dead ends: 105 [2022-07-19 17:23:36,561 INFO L226 Difference]: Without dead ends: 63 [2022-07-19 17:23:36,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:36,563 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 16 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:36,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 137 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-19 17:23:36,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-19 17:23:36,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 53 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-19 17:23:36,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2022-07-19 17:23:36,574 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 26 [2022-07-19 17:23:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:36,574 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2022-07-19 17:23:36,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2022-07-19 17:23:36,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-19 17:23:36,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:36,575 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] [2022-07-19 17:23:36,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:23:36,575 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:36,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:36,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1806341128, now seen corresponding path program 1 times [2022-07-19 17:23:36,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:36,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808010261] [2022-07-19 17:23:36,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:36,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:36,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:36,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808010261] [2022-07-19 17:23:36,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808010261] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:36,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:36,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:36,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017068323] [2022-07-19 17:23:36,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:36,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:36,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:36,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:36,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:36,648 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:36,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:36,813 INFO L93 Difference]: Finished difference Result 215 states and 281 transitions. [2022-07-19 17:23:36,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:36,813 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-07-19 17:23:36,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:36,815 INFO L225 Difference]: With dead ends: 215 [2022-07-19 17:23:36,817 INFO L226 Difference]: Without dead ends: 160 [2022-07-19 17:23:36,818 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 [2022-07-19 17:23:36,820 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 212 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:36,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 376 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:36,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-19 17:23:36,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2022-07-19 17:23:36,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 113 states have (on average 1.3628318584070795) internal successors, (154), 127 states have internal predecessors, (154), 23 states have call successors, (23), 17 states have call predecessors, (23), 17 states have return successors, (24), 17 states have call predecessors, (24), 23 states have call successors, (24) [2022-07-19 17:23:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2022-07-19 17:23:36,843 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 30 [2022-07-19 17:23:36,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:36,844 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2022-07-19 17:23:36,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2022-07-19 17:23:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 17:23:36,845 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:36,845 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] [2022-07-19 17:23:36,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:23:36,845 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:36,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:36,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1533330026, now seen corresponding path program 1 times [2022-07-19 17:23:36,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:36,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458383077] [2022-07-19 17:23:36,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:36,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-19 17:23:36,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:36,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:36,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458383077] [2022-07-19 17:23:36,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458383077] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:36,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:36,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:36,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421601772] [2022-07-19 17:23:36,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:36,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:36,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:36,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:36,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:36,961 INFO L87 Difference]: Start difference. First operand 154 states and 201 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, (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) [2022-07-19 17:23:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:37,018 INFO L93 Difference]: Finished difference Result 444 states and 591 transitions. [2022-07-19 17:23:37,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:23:37,019 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, (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 35 [2022-07-19 17:23:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:37,022 INFO L225 Difference]: With dead ends: 444 [2022-07-19 17:23:37,022 INFO L226 Difference]: Without dead ends: 298 [2022-07-19 17:23:37,023 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 [2022-07-19 17:23:37,024 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 49 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:37,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 384 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-07-19 17:23:37,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 289. [2022-07-19 17:23:37,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 208 states have (on average 1.3365384615384615) internal successors, (278), 235 states have internal predecessors, (278), 46 states have call successors, (46), 34 states have call predecessors, (46), 34 states have return successors, (51), 34 states have call predecessors, (51), 46 states have call successors, (51) [2022-07-19 17:23:37,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 375 transitions. [2022-07-19 17:23:37,048 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 375 transitions. Word has length 35 [2022-07-19 17:23:37,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:37,048 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 375 transitions. [2022-07-19 17:23:37,049 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, (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) [2022-07-19 17:23:37,049 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 375 transitions. [2022-07-19 17:23:37,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 17:23:37,050 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:37,050 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, 1] [2022-07-19 17:23:37,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:23:37,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:37,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:37,051 INFO L85 PathProgramCache]: Analyzing trace with hash -219849446, now seen corresponding path program 1 times [2022-07-19 17:23:37,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:37,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116510202] [2022-07-19 17:23:37,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:37,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:37,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:23:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:37,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:23:37,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:37,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 17:23:37,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:37,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:37,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:37,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116510202] [2022-07-19 17:23:37,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116510202] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:37,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:37,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:37,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887423741] [2022-07-19 17:23:37,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:37,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:37,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:37,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:37,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:37,101 INFO L87 Difference]: Start difference. First operand 289 states and 375 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-07-19 17:23:37,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:37,176 INFO L93 Difference]: Finished difference Result 514 states and 671 transitions. [2022-07-19 17:23:37,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:37,178 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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 39 [2022-07-19 17:23:37,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:37,179 INFO L225 Difference]: With dead ends: 514 [2022-07-19 17:23:37,179 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:23:37,180 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 [2022-07-19 17:23:37,181 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 50 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:37,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 128 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:23:37,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:23:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:23:37,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:23:37,182 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-07-19 17:23:37,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:37,183 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:23:37,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-07-19 17:23:37,183 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:23:37,183 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:23:37,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:23:37,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:23:37,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:23:37,622 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 211 218) the Hoare annotation is: true [2022-07-19 17:23:37,622 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 211 218) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 211 218) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 170 176) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 170 176) the Hoare annotation is: true [2022-07-19 17:23:37,623 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 773 802) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L902 garLoopResultBuilder]: At program point L798(lines 773 802) the Hoare annotation is: true [2022-07-19 17:23:37,623 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 773 802) the Hoare annotation is: true [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2022-07-19 17:23:37,623 INFO L902 garLoopResultBuilder]: At program point L787-1(lines 787 791) the Hoare annotation is: true [2022-07-19 17:23:37,624 INFO L899 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2022-07-19 17:23:37,624 INFO L902 garLoopResultBuilder]: At program point L783-2(lines 783 797) the Hoare annotation is: true [2022-07-19 17:23:37,624 INFO L902 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2022-07-19 17:23:37,624 INFO L899 garLoopResultBuilder]: For program point L779-1(line 779) no Hoare annotation was computed. [2022-07-19 17:23:37,624 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:37,624 INFO L895 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:37,624 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 146 169) no Hoare annotation was computed. [2022-07-19 17:23:37,624 INFO L895 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-19 17:23:37,624 INFO L895 garLoopResultBuilder]: At program point L197-1(lines 178 202) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-19 17:23:37,624 INFO L895 garLoopResultBuilder]: At program point L226(lines 219 229) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:37,624 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 901) no Hoare annotation was computed. [2022-07-19 17:23:37,624 INFO L899 garLoopResultBuilder]: For program point L887(lines 887 904) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L895 garLoopResultBuilder]: At program point L887-1(lines 879 907) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~6#1| 0)))) [2022-07-19 17:23:37,625 INFO L895 garLoopResultBuilder]: At program point L235(lines 230 238) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0))))) [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 157 163) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L892(lines 892 898) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 194) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 199) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L401(line 401) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L895 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L224-1(line 224) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 149 168) no Hoare annotation was computed. [2022-07-19 17:23:37,625 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:23:37,625 INFO L899 garLoopResultBuilder]: For program point L885-1(line 885) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L895 garLoopResultBuilder]: At program point L402(lines 397 404) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:23:37,626 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 146 169) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 146 169) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 401) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 94 102) the Hoare annotation is: true [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 94 102) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L902 garLoopResultBuilder]: At program point L353(lines 292 357) the Hoare annotation is: true [2022-07-19 17:23:37,626 INFO L902 garLoopResultBuilder]: At program point L865(lines 846 868) the Hoare annotation is: true [2022-07-19 17:23:37,626 INFO L895 garLoopResultBuilder]: At program point L287(lines 275 289) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 318) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point L312-1(lines 312 318) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 285) no Hoare annotation was computed. [2022-07-19 17:23:37,626 INFO L899 garLoopResultBuilder]: For program point L279-1(lines 279 285) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 308) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L350(lines 301 351) the Hoare annotation is: false [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 344) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L338-2(lines 332 345) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L392(lines 387 395) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 328) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point L322-1(lines 322 328) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L384(lines 380 386) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L347(lines 302 349) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L314(line 314) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:37,627 INFO L895 garLoopResultBuilder]: At program point L281(line 281) the Hoare annotation is: false [2022-07-19 17:23:37,628 INFO L895 garLoopResultBuilder]: At program point L876(lines 871 878) 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~5#1| ~systemActive~0)) [2022-07-19 17:23:37,628 INFO L902 garLoopResultBuilder]: At program point L843(lines 835 845) the Hoare annotation is: true [2022-07-19 17:23:37,628 INFO L895 garLoopResultBuilder]: At program point L831(lines 827 833) 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~5#1| ~systemActive~0)) [2022-07-19 17:23:37,628 INFO L895 garLoopResultBuilder]: At program point L377(lines 373 379) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:23:37,628 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 863) no Hoare annotation was computed. [2022-07-19 17:23:37,628 INFO L899 garLoopResultBuilder]: For program point L856-2(lines 856 863) no Hoare annotation was computed. [2022-07-19 17:23:37,628 INFO L899 garLoopResultBuilder]: For program point L303(lines 302 349) no Hoare annotation was computed. [2022-07-19 17:23:37,628 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 345) no Hoare annotation was computed. [2022-07-19 17:23:37,628 INFO L895 garLoopResultBuilder]: At program point L324(line 324) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:23:37,628 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-07-19 17:23:37,628 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-07-19 17:23:37,628 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2022-07-19 17:23:37,644 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 17:23:37,646 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:23:37,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:23:37 BoogieIcfgContainer [2022-07-19 17:23:37,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:23:37,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:23:37,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:23:37,657 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:23:37,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:36" (3/4) ... [2022-07-19 17:23:37,660 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-19 17:23:37,664 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:23:37,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-07-19 17:23:37,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:23:37,669 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:23:37,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:23:37,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:23:37,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:23:37,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:23:37,685 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-19 17:23:37,685 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-19 17:23:37,685 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-19 17:23:37,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:23:37,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-19 17:23:37,686 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-07-19 17:23:37,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:23:37,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) [2022-07-19 17:23:37,687 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:23:37,705 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:23:37,705 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:23:37,706 INFO L158 Benchmark]: Toolchain (without parser) took 2501.45ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 71.3MB in the beginning and 104.5MB in the end (delta: -33.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,707 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 77.6MB in the beginning and 77.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:23:37,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.66ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 74.2MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,707 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.10ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 72.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,707 INFO L158 Benchmark]: Boogie Preprocessor took 25.54ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,708 INFO L158 Benchmark]: RCFGBuilder took 403.39ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 55.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,708 INFO L158 Benchmark]: TraceAbstraction took 1536.93ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 54.8MB in the beginning and 109.8MB in the end (delta: -54.9MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,708 INFO L158 Benchmark]: Witness Printer took 48.29ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 104.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:23:37,710 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 77.6MB in the beginning and 77.6MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.66ms. Allocated memory is still 107.0MB. Free memory was 71.1MB in the beginning and 74.2MB in the end (delta: -3.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.10ms. Allocated memory is still 107.0MB. Free memory was 74.2MB in the beginning and 72.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.54ms. Allocated memory is still 107.0MB. Free memory was 72.1MB in the beginning and 70.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.39ms. Allocated memory is still 107.0MB. Free memory was 70.5MB in the beginning and 55.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1536.93ms. Allocated memory was 107.0MB in the beginning and 148.9MB in the end (delta: 41.9MB). Free memory was 54.8MB in the beginning and 109.8MB in the end (delta: -54.9MB). Peak memory consumption was 33.8MB. Max. memory is 16.1GB. * Witness Printer took 48.29ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 104.5MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 401]: 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, 81 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, 335 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 327 mSDsluCounter, 1126 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 711 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 203 IncrementalHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 415 mSDtfsCounter, 203 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 37 LocationsWithAnnotation, 380 PreInvPairs, 446 NumberOfFragments, 231 HoareAnnotationTreeSize, 380 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 37 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 150 ConstructedInterpolants, 0 QuantifiedInterpolants, 315 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: 846]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 301]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 835]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive - InvariantResult [Line: 783]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 397]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 871]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 373]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 302]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 387]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 380]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 230]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) RESULT: Ultimate proved your program to be correct! [2022-07-19 17:23:37,752 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