./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 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_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-?-6c24879 [2022-07-12 06:18:05,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:18:05,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:18:05,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:18:05,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:18:05,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:18:05,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:18:05,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:18:05,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:18:05,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:18:05,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:18:05,079 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:18:05,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:18:05,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:18:05,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:18:05,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:18:05,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:18:05,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:18:05,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:18:05,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:18:05,103 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:18:05,104 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:18:05,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:18:05,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:18:05,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:18:05,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:18:05,110 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:18:05,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:18:05,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:18:05,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:18:05,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:18:05,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:18:05,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:18:05,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:18:05,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:18:05,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:18:05,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:18:05,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:18:05,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:18:05,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:18:05,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:18:05,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:18:05,127 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:18:05,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:18:05,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:18:05,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:18:05,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:18:05,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:18:05,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:18:05,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:18:05,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:18:05,156 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:18:05,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:18:05,157 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:18:05,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:18:05,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:18:05,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:18:05,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:18:05,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:18:05,158 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:18:05,158 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:18:05,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:18:05,159 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:18:05,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:18:05,159 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:18:05,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:18:05,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:18:05,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:18:05,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:18:05,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:18:05,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:18:05,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:18:05,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:18:05,161 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:18:05,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:18:05,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:18:05,162 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 690d9fe310e470fa54abb43d61d054401e7692fe0de366fc3accadb640a888e5 [2022-07-12 06:18:05,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:18:05,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:18:05,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:18:05,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:18:05,459 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:18:05,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2022-07-12 06:18:05,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16004c86/dbc190b649c44ab1bf856731e0cf45db/FLAGacc3ee3d1 [2022-07-12 06:18:06,028 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:18:06,029 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product07.cil.c [2022-07-12 06:18:06,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16004c86/dbc190b649c44ab1bf856731e0cf45db/FLAGacc3ee3d1 [2022-07-12 06:18:06,363 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a16004c86/dbc190b649c44ab1bf856731e0cf45db [2022-07-12 06:18:06,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:18:06,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:18:06,368 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:18:06,368 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:18:06,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:18:06,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e0767c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06, skipping insertion in model container [2022-07-12 06:18:06,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:18:06,415 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:18:06,591 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] [2022-07-12 06:18:06,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:18:06,668 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:18:06,728 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] [2022-07-12 06:18:06,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:18:06,787 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:18:06,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06 WrapperNode [2022-07-12 06:18:06,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:18:06,789 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:18:06,790 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:18:06,790 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:18:06,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,852 INFO L137 Inliner]: procedures = 52, calls = 151, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 212 [2022-07-12 06:18:06,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:18:06,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:18:06,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:18:06,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:18:06,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:18:06,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:18:06,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:18:06,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:18:06,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (1/1) ... [2022-07-12 06:18:06,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:18:06,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:18:06,936 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 06:18:06,942 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 06:18:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:18:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-12 06:18:06,976 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-12 06:18:06,976 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-12 06:18:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-12 06:18:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-12 06:18:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-12 06:18:06,977 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-12 06:18:06,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-12 06:18:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-12 06:18:06,978 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-12 06:18:06,978 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-12 06:18:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-12 06:18:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:18:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-12 06:18:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-12 06:18:06,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:18:06,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:18:07,042 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:18:07,044 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:18:07,303 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:18:07,311 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:18:07,311 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-12 06:18:07,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:18:07 BoogieIcfgContainer [2022-07-12 06:18:07,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:18:07,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:18:07,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:18:07,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:18:07,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:18:06" (1/3) ... [2022-07-12 06:18:07,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680f60c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:18:07, skipping insertion in model container [2022-07-12 06:18:07,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:18:06" (2/3) ... [2022-07-12 06:18:07,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@680f60c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:18:07, skipping insertion in model container [2022-07-12 06:18:07,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:18:07" (3/3) ... [2022-07-12 06:18:07,330 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product07.cil.c [2022-07-12 06:18:07,343 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:18:07,344 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:18:07,422 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:18:07,433 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@8f74ccf, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@54a751d5 [2022-07-12 06:18:07,434 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:18:07,448 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) [2022-07-12 06:18:07,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-12 06:18:07,462 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:18:07,463 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] [2022-07-12 06:18:07,464 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:18:07,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:18:07,470 INFO L85 PathProgramCache]: Analyzing trace with hash 2077906994, now seen corresponding path program 1 times [2022-07-12 06:18:07,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:18:07,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892404225] [2022-07-12 06:18:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:18:07,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:18:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 06:18:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:07,732 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 06:18:07,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:18:07,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892404225] [2022-07-12 06:18:07,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892404225] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:18:07,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:18:07,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-12 06:18:07,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108105013] [2022-07-12 06:18:07,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:18:07,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-12 06:18:07,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:18:07,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-12 06:18:07,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-12 06:18:07,779 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) [2022-07-12 06:18:07,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:18:07,826 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2022-07-12 06:18:07,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-12 06:18:07,828 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 [2022-07-12 06:18:07,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:18:07,841 INFO L225 Difference]: With dead ends: 153 [2022-07-12 06:18:07,842 INFO L226 Difference]: Without dead ends: 72 [2022-07-12 06:18:07,847 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 06:18:07,851 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 [2022-07-12 06:18:07,853 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] [2022-07-12 06:18:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-07-12 06:18:07,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-07-12 06:18:07,907 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) [2022-07-12 06:18:07,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2022-07-12 06:18:07,917 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 25 [2022-07-12 06:18:07,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:18:07,918 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2022-07-12 06:18:07,919 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) [2022-07-12 06:18:07,919 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2022-07-12 06:18:07,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-07-12 06:18:07,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:18:07,923 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] [2022-07-12 06:18:07,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:18:07,924 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:18:07,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:18:07,925 INFO L85 PathProgramCache]: Analyzing trace with hash 525951112, now seen corresponding path program 1 times [2022-07-12 06:18:07,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:18:07,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101487814] [2022-07-12 06:18:07,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:18:07,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:18:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-12 06:18:08,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,039 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 06:18:08,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:18:08,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101487814] [2022-07-12 06:18:08,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101487814] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:18:08,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:18:08,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 06:18:08,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655701512] [2022-07-12 06:18:08,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:18:08,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-12 06:18:08,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:18:08,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-12 06:18:08,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-12 06:18:08,044 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) [2022-07-12 06:18:08,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:18:08,057 INFO L93 Difference]: Finished difference Result 105 states and 133 transitions. [2022-07-12 06:18:08,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-12 06:18:08,058 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 [2022-07-12 06:18:08,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:18:08,059 INFO L225 Difference]: With dead ends: 105 [2022-07-12 06:18:08,059 INFO L226 Difference]: Without dead ends: 63 [2022-07-12 06:18:08,060 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 06:18:08,062 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 [2022-07-12 06:18:08,062 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] [2022-07-12 06:18:08,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-12 06:18:08,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-12 06:18:08,069 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) [2022-07-12 06:18:08,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2022-07-12 06:18:08,071 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 26 [2022-07-12 06:18:08,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:18:08,071 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2022-07-12 06:18:08,071 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) [2022-07-12 06:18:08,072 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2022-07-12 06:18:08,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-12 06:18:08,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:18:08,073 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] [2022-07-12 06:18:08,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:18:08,074 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:18:08,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:18:08,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1806341128, now seen corresponding path program 1 times [2022-07-12 06:18:08,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:18:08,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006501414] [2022-07-12 06:18:08,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:18:08,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:18:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:18:08,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,148 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 06:18:08,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:18:08,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006501414] [2022-07-12 06:18:08,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006501414] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:18:08,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:18:08,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:18:08,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983274440] [2022-07-12 06:18:08,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:18:08,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:18:08,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:18:08,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:18:08,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:18:08,152 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) [2022-07-12 06:18:08,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:18:08,319 INFO L93 Difference]: Finished difference Result 215 states and 281 transitions. [2022-07-12 06:18:08,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:18:08,320 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 [2022-07-12 06:18:08,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:18:08,322 INFO L225 Difference]: With dead ends: 215 [2022-07-12 06:18:08,322 INFO L226 Difference]: Without dead ends: 160 [2022-07-12 06:18:08,323 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 06:18:08,324 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 [2022-07-12 06:18:08,324 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] [2022-07-12 06:18:08,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-12 06:18:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2022-07-12 06:18:08,351 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) [2022-07-12 06:18:08,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 201 transitions. [2022-07-12 06:18:08,356 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 201 transitions. Word has length 30 [2022-07-12 06:18:08,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:18:08,375 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 201 transitions. [2022-07-12 06:18:08,376 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) [2022-07-12 06:18:08,376 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 201 transitions. [2022-07-12 06:18:08,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 06:18:08,377 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:18:08,377 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] [2022-07-12 06:18:08,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:18:08,378 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:18:08,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:18:08,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1533330026, now seen corresponding path program 1 times [2022-07-12 06:18:08,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:18:08,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134760679] [2022-07-12 06:18:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:18:08,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:18:08,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:18:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-12 06:18:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,523 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 06:18:08,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:18:08,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134760679] [2022-07-12 06:18:08,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134760679] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:18:08,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:18:08,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:18:08,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878681523] [2022-07-12 06:18:08,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:18:08,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:18:08,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:18:08,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:18:08,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:18:08,528 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) [2022-07-12 06:18:08,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:18:08,652 INFO L93 Difference]: Finished difference Result 444 states and 591 transitions. [2022-07-12 06:18:08,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-12 06:18:08,652 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 [2022-07-12 06:18:08,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:18:08,656 INFO L225 Difference]: With dead ends: 444 [2022-07-12 06:18:08,656 INFO L226 Difference]: Without dead ends: 298 [2022-07-12 06:18:08,658 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 06:18:08,659 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 49 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:18:08,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 384 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:18:08,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-07-12 06:18:08,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 289. [2022-07-12 06:18:08,700 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) [2022-07-12 06:18:08,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 375 transitions. [2022-07-12 06:18:08,702 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 375 transitions. Word has length 35 [2022-07-12 06:18:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:18:08,702 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 375 transitions. [2022-07-12 06:18:08,702 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) [2022-07-12 06:18:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 375 transitions. [2022-07-12 06:18:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-12 06:18:08,704 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:18:08,704 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] [2022-07-12 06:18:08,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:18:08,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:18:08,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:18:08,705 INFO L85 PathProgramCache]: Analyzing trace with hash -219849446, now seen corresponding path program 1 times [2022-07-12 06:18:08,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:18:08,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967910773] [2022-07-12 06:18:08,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:18:08,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:18:08,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 06:18:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 06:18:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-12 06:18:08,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:18:08,800 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 06:18:08,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:18:08,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967910773] [2022-07-12 06:18:08,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967910773] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:18:08,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:18:08,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:18:08,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114123245] [2022-07-12 06:18:08,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:18:08,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:18:08,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:18:08,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:18:08,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:18:08,803 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) [2022-07-12 06:18:08,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:18:08,907 INFO L93 Difference]: Finished difference Result 514 states and 671 transitions. [2022-07-12 06:18:08,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:18:08,907 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 [2022-07-12 06:18:08,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:18:08,908 INFO L225 Difference]: With dead ends: 514 [2022-07-12 06:18:08,909 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 06:18:08,913 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 06:18:08,922 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-12 06:18:08,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 128 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-12 06:18:08,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 06:18:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 06:18:08,927 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 06:18:08,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 06:18:08,928 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2022-07-12 06:18:08,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:18:08,928 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 06:18:08,928 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) [2022-07-12 06:18:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 06:18:08,929 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 06:18:08,931 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 06:18:08,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:18:08,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 06:18:09,557 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 211 218) the Hoare annotation is: true [2022-07-12 06:18:09,557 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 211 218) no Hoare annotation was computed. [2022-07-12 06:18:09,558 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 211 218) no Hoare annotation was computed. [2022-07-12 06:18:09,558 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 170 176) no Hoare annotation was computed. [2022-07-12 06:18:09,558 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 170 176) the Hoare annotation is: true [2022-07-12 06:18:09,558 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 82 93) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-12 06:18:09,559 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 82 93) no Hoare annotation was computed. [2022-07-12 06:18:09,559 INFO L899 garLoopResultBuilder]: For program point L86-1(lines 82 93) no Hoare annotation was computed. [2022-07-12 06:18:09,559 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 773 802) no Hoare annotation was computed. [2022-07-12 06:18:09,559 INFO L902 garLoopResultBuilder]: At program point L798(lines 773 802) the Hoare annotation is: true [2022-07-12 06:18:09,559 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 773 802) the Hoare annotation is: true [2022-07-12 06:18:09,559 INFO L899 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2022-07-12 06:18:09,560 INFO L899 garLoopResultBuilder]: For program point L787(lines 787 791) no Hoare annotation was computed. [2022-07-12 06:18:09,560 INFO L902 garLoopResultBuilder]: At program point L787-1(lines 787 791) the Hoare annotation is: true [2022-07-12 06:18:09,560 INFO L899 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2022-07-12 06:18:09,560 INFO L902 garLoopResultBuilder]: At program point L783-2(lines 783 797) the Hoare annotation is: true [2022-07-12 06:18:09,560 INFO L902 garLoopResultBuilder]: At program point L779(line 779) the Hoare annotation is: true [2022-07-12 06:18:09,560 INFO L899 garLoopResultBuilder]: For program point L779-1(line 779) no Hoare annotation was computed. [2022-07-12 06:18:09,561 INFO L895 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:18:09,561 INFO L895 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:18:09,561 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 146 169) no Hoare annotation was computed. [2022-07-12 06:18:09,561 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)))) [2022-07-12 06:18:09,561 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)))) [2022-07-12 06:18:09,562 INFO L895 garLoopResultBuilder]: At program point L226(lines 219 229) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:18:09,562 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 901) no Hoare annotation was computed. [2022-07-12 06:18:09,562 INFO L899 garLoopResultBuilder]: For program point L887(lines 887 904) no Hoare annotation was computed. [2022-07-12 06:18:09,562 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)))) [2022-07-12 06:18:09,562 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))))) [2022-07-12 06:18:09,563 INFO L899 garLoopResultBuilder]: For program point L62(lines 62 66) no Hoare annotation was computed. [2022-07-12 06:18:09,563 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 58 69) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:18:09,563 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 157 163) no Hoare annotation was computed. [2022-07-12 06:18:09,563 INFO L899 garLoopResultBuilder]: For program point L892(lines 892 898) no Hoare annotation was computed. [2022-07-12 06:18:09,563 INFO L899 garLoopResultBuilder]: For program point L186(lines 186 194) no Hoare annotation was computed. [2022-07-12 06:18:09,564 INFO L899 garLoopResultBuilder]: For program point L182(lines 182 199) no Hoare annotation was computed. [2022-07-12 06:18:09,564 INFO L899 garLoopResultBuilder]: For program point L401(line 401) no Hoare annotation was computed. [2022-07-12 06:18:09,564 INFO L895 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:18:09,564 INFO L899 garLoopResultBuilder]: For program point L224-1(line 224) no Hoare annotation was computed. [2022-07-12 06:18:09,564 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 149 168) no Hoare annotation was computed. [2022-07-12 06:18:09,564 INFO L895 garLoopResultBuilder]: At program point L885(line 885) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-12 06:18:09,565 INFO L899 garLoopResultBuilder]: For program point L885-1(line 885) no Hoare annotation was computed. [2022-07-12 06:18:09,565 INFO L895 garLoopResultBuilder]: At program point L402(lines 397 404) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-12 06:18:09,565 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 146 169) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-12 06:18:09,565 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 146 169) no Hoare annotation was computed. [2022-07-12 06:18:09,565 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 401) no Hoare annotation was computed. [2022-07-12 06:18:09,566 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 94 102) the Hoare annotation is: true [2022-07-12 06:18:09,566 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 94 102) no Hoare annotation was computed. [2022-07-12 06:18:09,566 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 94 102) no Hoare annotation was computed. [2022-07-12 06:18:09,566 INFO L902 garLoopResultBuilder]: At program point L353(lines 292 357) the Hoare annotation is: true [2022-07-12 06:18:09,566 INFO L902 garLoopResultBuilder]: At program point L865(lines 846 868) the Hoare annotation is: true [2022-07-12 06:18:09,567 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)) [2022-07-12 06:18:09,567 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 318) no Hoare annotation was computed. [2022-07-12 06:18:09,567 INFO L899 garLoopResultBuilder]: For program point L312-1(lines 312 318) no Hoare annotation was computed. [2022-07-12 06:18:09,567 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 285) no Hoare annotation was computed. [2022-07-12 06:18:09,567 INFO L899 garLoopResultBuilder]: For program point L279-1(lines 279 285) no Hoare annotation was computed. [2022-07-12 06:18:09,567 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 308) no Hoare annotation was computed. [2022-07-12 06:18:09,568 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 06:18:09,568 INFO L895 garLoopResultBuilder]: At program point L350(lines 301 351) the Hoare annotation is: false [2022-07-12 06:18:09,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 06:18:09,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 06:18:09,568 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 344) no Hoare annotation was computed. [2022-07-12 06:18:09,568 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)) [2022-07-12 06:18:09,569 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)) [2022-07-12 06:18:09,569 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 328) no Hoare annotation was computed. [2022-07-12 06:18:09,569 INFO L899 garLoopResultBuilder]: For program point L322-1(lines 322 328) no Hoare annotation was computed. [2022-07-12 06:18:09,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 06:18:09,569 INFO L895 garLoopResultBuilder]: At program point L384(lines 380 386) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-12 06:18:09,569 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)) [2022-07-12 06:18:09,570 INFO L895 garLoopResultBuilder]: At program point L314(line 314) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:18:09,570 INFO L895 garLoopResultBuilder]: At program point L281(line 281) the Hoare annotation is: false [2022-07-12 06:18:09,570 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)) [2022-07-12 06:18:09,570 INFO L902 garLoopResultBuilder]: At program point L843(lines 835 845) the Hoare annotation is: true [2022-07-12 06:18:09,570 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)) [2022-07-12 06:18:09,571 INFO L895 garLoopResultBuilder]: At program point L377(lines 373 379) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-12 06:18:09,571 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 863) no Hoare annotation was computed. [2022-07-12 06:18:09,571 INFO L899 garLoopResultBuilder]: For program point L856-2(lines 856 863) no Hoare annotation was computed. [2022-07-12 06:18:09,575 INFO L899 garLoopResultBuilder]: For program point L303(lines 302 349) no Hoare annotation was computed. [2022-07-12 06:18:09,575 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 345) no Hoare annotation was computed. [2022-07-12 06:18:09,576 INFO L895 garLoopResultBuilder]: At program point L324(line 324) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-12 06:18:09,576 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 70 81) no Hoare annotation was computed. [2022-07-12 06:18:09,576 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 70 81) no Hoare annotation was computed. [2022-07-12 06:18:09,576 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 70 81) the Hoare annotation is: true [2022-07-12 06:18:09,584 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-12 06:18:09,589 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 06:18:09,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 06:18:09 BoogieIcfgContainer [2022-07-12 06:18:09,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 06:18:09,609 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 06:18:09,609 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 06:18:09,609 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 06:18:09,610 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:18:07" (3/4) ... [2022-07-12 06:18:09,613 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 06:18:09,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-12 06:18:09,619 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-12 06:18:09,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-12 06:18:09,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-12 06:18:09,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-12 06:18:09,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-12 06:18:09,620 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-12 06:18:09,627 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2022-07-12 06:18:09,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-12 06:18:09,628 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 06:18:09,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 06:18:09,629 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 06:18:09,630 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:18:09,630 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 06:18:09,652 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-12 06:18:09,652 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-12 06:18:09,652 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-12 06:18:09,653 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:18:09,654 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-12 06:18:09,654 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-07-12 06:18:09,655 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:18:09,655 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 06:18:09,655 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-12 06:18:09,688 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 06:18:09,689 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 06:18:09,690 INFO L158 Benchmark]: Toolchain (without parser) took 3323.61ms. Allocated memory was 107.0MB in the beginning and 157.3MB in the end (delta: 50.3MB). Free memory was 76.9MB in the beginning and 111.4MB in the end (delta: -34.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,691 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 06:18:09,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.47ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 76.7MB in the beginning and 96.7MB in the end (delta: -20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,691 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.99ms. Allocated memory is still 130.0MB. Free memory was 96.7MB in the beginning and 94.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,692 INFO L158 Benchmark]: Boogie Preprocessor took 51.59ms. Allocated memory is still 130.0MB. Free memory was 94.6MB in the beginning and 92.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,692 INFO L158 Benchmark]: RCFGBuilder took 406.29ms. Allocated memory is still 130.0MB. Free memory was 92.9MB in the beginning and 77.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,692 INFO L158 Benchmark]: TraceAbstraction took 2293.19ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 77.4MB in the beginning and 116.6MB in the end (delta: -39.2MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,695 INFO L158 Benchmark]: Witness Printer took 80.06ms. Allocated memory is still 157.3MB. Free memory was 116.6MB in the beginning and 111.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-12 06:18:09,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.47ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 76.7MB in the beginning and 96.7MB in the end (delta: -20.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.99ms. Allocated memory is still 130.0MB. Free memory was 96.7MB in the beginning and 94.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.59ms. Allocated memory is still 130.0MB. Free memory was 94.6MB in the beginning and 92.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.29ms. Allocated memory is still 130.0MB. Free memory was 92.9MB in the beginning and 77.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2293.19ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 77.4MB in the beginning and 116.6MB in the end (delta: -39.2MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Witness Printer took 80.06ms. Allocated memory is still 157.3MB. Free memory was 116.6MB in the beginning and 111.4MB 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: 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: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 327 mSDsluCounter, 1126 SdHoareTripleChecker+Invalid, 0.2s 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, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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! [2022-07-12 06:18:09,745 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