./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_spec1_product19.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e25743107029d12d34dddb50b6115a3bfc10c36f90a80b04d3daa9d63cbcdce5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:22:49,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:22:49,530 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:22:49,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:22:49,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:22:49,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:22:49,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:22:49,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:22:49,573 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:22:49,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:22:49,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:22:49,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:22:49,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:22:49,581 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:22:49,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:22:49,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:22:49,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:22:49,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:22:49,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:22:49,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:22:49,593 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:22:49,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:22:49,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:22:49,595 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:22:49,596 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:22:49,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:22:49,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:22:49,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:22:49,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:22:49,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:22:49,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:22:49,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:22:49,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:22:49,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:22:49,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:22:49,607 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:22:49,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:22:49,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:22:49,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:22:49,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:22:49,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:22:49,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:22:49,611 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:22:49,635 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:22:49,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:22:49,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:22:49,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:22:49,636 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:22:49,636 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:22:49,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:22:49,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:22:49,638 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:22:49,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:22:49,639 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:22:49,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:22:49,639 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:22:49,639 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:22:49,639 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:22:49,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:22:49,640 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:22:49,640 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:22:49,640 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:22:49,640 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:22:49,640 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:22:49,640 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:22:49,641 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:22:49,641 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:22:49,641 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:22:49,641 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:22:49,641 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:22:49,641 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:22:49,641 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:22:49,642 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:22:49,642 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:22:49,642 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:22:49,642 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:22:49,642 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e25743107029d12d34dddb50b6115a3bfc10c36f90a80b04d3daa9d63cbcdce5 [2022-07-19 17:22:49,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:22:49,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:22:49,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:22:49,868 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:22:49,868 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:22:49,869 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2022-07-19 17:22:49,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/447e5f49c/c8a5a005577f4d5b979ccc7cac556bca/FLAGf6c8fdad0 [2022-07-19 17:22:50,275 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:22:50,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c [2022-07-19 17:22:50,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/447e5f49c/c8a5a005577f4d5b979ccc7cac556bca/FLAGf6c8fdad0 [2022-07-19 17:22:50,661 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/447e5f49c/c8a5a005577f4d5b979ccc7cac556bca [2022-07-19 17:22:50,663 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:22:50,664 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:22:50,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:22:50,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:22:50,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:22:50,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:22:50" (1/1) ... [2022-07-19 17:22:50,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b46de8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:50, skipping insertion in model container [2022-07-19 17:22:50,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:22:50" (1/1) ... [2022-07-19 17:22:50,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:22:50,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:22:50,823 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c[2044,2057] [2022-07-19 17:22:50,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:22:50,942 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:22:50,955 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product19.cil.c[2044,2057] [2022-07-19 17:22:50,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:22:51,008 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:22:51,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51 WrapperNode [2022-07-19 17:22:51,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:22:51,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:22:51,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:22:51,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:22:51,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,067 INFO L137 Inliner]: procedures = 53, calls = 151, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 216 [2022-07-19 17:22:51,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:22:51,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:22:51,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:22:51,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:22:51,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,082 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:22:51,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:22:51,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:22:51,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:22:51,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (1/1) ... [2022-07-19 17:22:51,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:22:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:22:51,118 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 17:22:51,133 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 17:22:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:22:51,141 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:22:51,141 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:22:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:22:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:22:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:22:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:22:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:22:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:22:51,142 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:22:51,142 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:22:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:22:51,143 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:22:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:22:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:22:51,143 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:22:51,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:22:51,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:22:51,199 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:22:51,201 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:22:51,484 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:22:51,489 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:22:51,489 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:22:51,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:22:51 BoogieIcfgContainer [2022-07-19 17:22:51,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:22:51,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:22:51,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:22:51,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:22:51,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:22:50" (1/3) ... [2022-07-19 17:22:51,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cca422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:22:51, skipping insertion in model container [2022-07-19 17:22:51,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:22:51" (2/3) ... [2022-07-19 17:22:51,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cca422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:22:51, skipping insertion in model container [2022-07-19 17:22:51,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:22:51" (3/3) ... [2022-07-19 17:22:51,500 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19.cil.c [2022-07-19 17:22:51,510 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:22:51,510 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:22:51,545 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:22:51,549 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@2953a551, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5c972f69 [2022-07-19 17:22:51,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:22:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-07-19 17:22:51,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 17:22:51,569 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:51,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:22:51,570 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:51,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash 233664886, now seen corresponding path program 1 times [2022-07-19 17:22:51,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:51,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125300669] [2022-07-19 17:22:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:51,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:51,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:51,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:22:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:51,791 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 17:22:51,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:51,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125300669] [2022-07-19 17:22:51,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125300669] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:51,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:51,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:22:51,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201248584] [2022-07-19 17:22:51,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:51,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:22:51,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:51,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:22:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:22:51,826 INFO L87 Difference]: Start difference. First operand has 80 states, 60 states have (on average 1.3833333333333333) internal successors, (83), 67 states have internal predecessors, (83), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:22:51,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:51,860 INFO L93 Difference]: Finished difference Result 152 states and 205 transitions. [2022-07-19 17:22:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:22:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-19 17:22:51,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:51,870 INFO L225 Difference]: With dead ends: 152 [2022-07-19 17:22:51,870 INFO L226 Difference]: Without dead ends: 71 [2022-07-19 17:22:51,873 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 17:22:51,876 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:51,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-07-19 17:22:51,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-07-19 17:22:51,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 59 states have internal predecessors, (69), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-07-19 17:22:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 90 transitions. [2022-07-19 17:22:51,928 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 90 transitions. Word has length 23 [2022-07-19 17:22:51,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:51,929 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 90 transitions. [2022-07-19 17:22:51,929 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:22:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 90 transitions. [2022-07-19 17:22:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 17:22:51,932 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:51,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:22:51,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:22:51,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:51,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:51,934 INFO L85 PathProgramCache]: Analyzing trace with hash 962070603, now seen corresponding path program 1 times [2022-07-19 17:22:51,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:51,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316093830] [2022-07-19 17:22:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:51,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:51,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:22:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,002 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 17:22:52,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:52,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316093830] [2022-07-19 17:22:52,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316093830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:52,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:52,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:22:52,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032729259] [2022-07-19 17:22:52,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:22:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:22:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:22:52,012 INFO L87 Difference]: Start difference. First operand 71 states and 90 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:22:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:52,022 INFO L93 Difference]: Finished difference Result 104 states and 130 transitions. [2022-07-19 17:22:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:22:52,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-07-19 17:22:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:52,024 INFO L225 Difference]: With dead ends: 104 [2022-07-19 17:22:52,024 INFO L226 Difference]: Without dead ends: 62 [2022-07-19 17:22:52,025 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 17:22:52,026 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 16 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:52,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 133 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:52,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-07-19 17:22:52,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-07-19 17:22:52,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 47 states have (on average 1.3191489361702127) internal successors, (62), 53 states have internal predecessors, (62), 8 states have call successors, (8), 6 states have call predecessors, (8), 6 states have return successors, (8), 6 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-19 17:22:52,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-07-19 17:22:52,032 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 24 [2022-07-19 17:22:52,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:52,032 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-07-19 17:22:52,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:22:52,033 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-07-19 17:22:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-19 17:22:52,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:52,034 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:22:52,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:22:52,034 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:52,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:52,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1633759331, now seen corresponding path program 1 times [2022-07-19 17:22:52,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:52,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624367377] [2022-07-19 17:22:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:52,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:22:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,114 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 17:22:52,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:52,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624367377] [2022-07-19 17:22:52,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624367377] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:52,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:52,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:22:52,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393703047] [2022-07-19 17:22:52,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:52,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:22:52,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:52,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:22:52,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:22:52,121 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:22:52,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:52,260 INFO L93 Difference]: Finished difference Result 213 states and 275 transitions. [2022-07-19 17:22:52,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:22:52,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2022-07-19 17:22:52,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:52,263 INFO L225 Difference]: With dead ends: 213 [2022-07-19 17:22:52,263 INFO L226 Difference]: Without dead ends: 158 [2022-07-19 17:22:52,263 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 17:22:52,264 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 163 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:52,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 423 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:22:52,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-07-19 17:22:52,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 152. [2022-07-19 17:22:52,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 113 states have (on average 1.3539823008849559) internal successors, (153), 127 states have internal predecessors, (153), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (22), 15 states have call predecessors, (22), 21 states have call successors, (22) [2022-07-19 17:22:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 196 transitions. [2022-07-19 17:22:52,288 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 196 transitions. Word has length 28 [2022-07-19 17:22:52,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:52,293 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 196 transitions. [2022-07-19 17:22:52,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:22:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 196 transitions. [2022-07-19 17:22:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-07-19 17:22:52,296 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:52,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:22:52,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:22:52,297 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:52,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:52,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1210161126, now seen corresponding path program 1 times [2022-07-19 17:22:52,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:52,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595977742] [2022-07-19 17:22:52,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:52,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:22:52,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 17:22:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,371 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 17:22:52,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:52,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595977742] [2022-07-19 17:22:52,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595977742] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:52,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:52,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:22:52,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140403844] [2022-07-19 17:22:52,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:52,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:22:52,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:52,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:22:52,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:22:52,374 INFO L87 Difference]: Start difference. First operand 152 states and 196 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:22:52,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:52,457 INFO L93 Difference]: Finished difference Result 443 states and 584 transitions. [2022-07-19 17:22:52,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:22:52,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2022-07-19 17:22:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:52,467 INFO L225 Difference]: With dead ends: 443 [2022-07-19 17:22:52,467 INFO L226 Difference]: Without dead ends: 298 [2022-07-19 17:22:52,470 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 17:22:52,472 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 51 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:52,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 375 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:52,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-07-19 17:22:52,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 289. [2022-07-19 17:22:52,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 212 states have (on average 1.3349056603773586) internal successors, (283), 239 states have internal predecessors, (283), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (47), 30 states have call predecessors, (47), 42 states have call successors, (47) [2022-07-19 17:22:52,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 372 transitions. [2022-07-19 17:22:52,501 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 372 transitions. Word has length 33 [2022-07-19 17:22:52,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:52,502 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 372 transitions. [2022-07-19 17:22:52,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:22:52,502 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 372 transitions. [2022-07-19 17:22:52,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 17:22:52,503 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:22:52,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:22:52,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:22:52,504 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:22:52,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:22:52,504 INFO L85 PathProgramCache]: Analyzing trace with hash -618871306, now seen corresponding path program 1 times [2022-07-19 17:22:52,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:22:52,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885757608] [2022-07-19 17:22:52,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:22:52,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:22:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 17:22:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 17:22:52,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-19 17:22:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:22:52,563 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 17:22:52,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:22:52,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885757608] [2022-07-19 17:22:52,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885757608] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:22:52,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:22:52,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:22:52,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642820313] [2022-07-19 17:22:52,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:22:52,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:22:52,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:22:52,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:22:52,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:22:52,565 INFO L87 Difference]: Start difference. First operand 289 states and 372 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:22:52,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:22:52,639 INFO L93 Difference]: Finished difference Result 514 states and 668 transitions. [2022-07-19 17:22:52,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:22:52,639 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 37 [2022-07-19 17:22:52,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:22:52,640 INFO L225 Difference]: With dead ends: 514 [2022-07-19 17:22:52,640 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:22:52,641 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 17:22:52,642 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 50 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:22:52,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 124 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:22:52,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:22:52,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:22:52,643 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 17:22:52,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:22:52,643 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-07-19 17:22:52,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:22:52,644 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:22:52,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-07-19 17:22:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:22:52,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:22:52,646 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:22:52,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:22:52,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:22:53,075 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 757 764) the Hoare annotation is: true [2022-07-19 17:22:53,076 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 757 764) no Hoare annotation was computed. [2022-07-19 17:22:53,076 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 757 764) no Hoare annotation was computed. [2022-07-19 17:22:53,076 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 716 722) no Hoare annotation was computed. [2022-07-19 17:22:53,076 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 716 722) the Hoare annotation is: true [2022-07-19 17:22:53,077 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 120 131) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) [2022-07-19 17:22:53,077 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 120 131) no Hoare annotation was computed. [2022-07-19 17:22:53,077 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2022-07-19 17:22:53,077 INFO L899 garLoopResultBuilder]: For program point L696-1(lines 695 714) no Hoare annotation was computed. [2022-07-19 17:22:53,077 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 692 715) no Hoare annotation was computed. [2022-07-19 17:22:53,077 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:53,078 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2022-07-19 17:22:53,078 INFO L895 garLoopResultBuilder]: At program point L734(line 734) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:53,078 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2022-07-19 17:22:53,078 INFO L895 garLoopResultBuilder]: At program point L61-1(lines 53 77) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0)) (or .cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~0#1| 0) (not (= ~methaneLevelCritical~0 0))))) [2022-07-19 17:22:53,079 INFO L895 garLoopResultBuilder]: At program point L743(line 743) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-19 17:22:53,079 INFO L895 garLoopResultBuilder]: At program point L743-1(lines 724 748) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (not (= 0 ~systemActive~0)))) [2022-07-19 17:22:53,079 INFO L899 garLoopResultBuilder]: For program point L830(lines 830 834) no Hoare annotation was computed. [2022-07-19 17:22:53,079 INFO L899 garLoopResultBuilder]: For program point L830-2(lines 830 834) no Hoare annotation was computed. [2022-07-19 17:22:53,080 INFO L899 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2022-07-19 17:22:53,080 INFO L895 garLoopResultBuilder]: At program point L178(lines 173 181) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:53,080 INFO L895 garLoopResultBuilder]: At program point L781(lines 776 784) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0))))) [2022-07-19 17:22:53,081 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-07-19 17:22:53,081 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 96 107) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:53,081 INFO L899 garLoopResultBuilder]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2022-07-19 17:22:53,081 INFO L899 garLoopResultBuilder]: For program point L732(lines 732 740) no Hoare annotation was computed. [2022-07-19 17:22:53,081 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:22:53,081 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2022-07-19 17:22:53,082 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 745) no Hoare annotation was computed. [2022-07-19 17:22:53,082 INFO L895 garLoopResultBuilder]: At program point L84(lines 79 86) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:53,083 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 692 715) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0)) [2022-07-19 17:22:53,083 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 692 715) no Hoare annotation was computed. [2022-07-19 17:22:53,083 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2022-07-19 17:22:53,083 INFO L895 garLoopResultBuilder]: At program point L836(lines 821 839) the Hoare annotation is: (not (= |old(~pumpRunning~0)| 0)) [2022-07-19 17:22:53,083 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 589 618) no Hoare annotation was computed. [2022-07-19 17:22:53,083 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 589 618) the Hoare annotation is: true [2022-07-19 17:22:53,083 INFO L899 garLoopResultBuilder]: For program point L603(lines 603 607) no Hoare annotation was computed. [2022-07-19 17:22:53,084 INFO L902 garLoopResultBuilder]: At program point L603-1(lines 603 607) the Hoare annotation is: true [2022-07-19 17:22:53,085 INFO L899 garLoopResultBuilder]: For program point L600(line 600) no Hoare annotation was computed. [2022-07-19 17:22:53,085 INFO L902 garLoopResultBuilder]: At program point L599-2(lines 599 613) the Hoare annotation is: true [2022-07-19 17:22:53,087 INFO L902 garLoopResultBuilder]: At program point L595(line 595) the Hoare annotation is: true [2022-07-19 17:22:53,087 INFO L899 garLoopResultBuilder]: For program point L595-1(line 595) no Hoare annotation was computed. [2022-07-19 17:22:53,087 INFO L902 garLoopResultBuilder]: At program point L614(lines 589 618) the Hoare annotation is: true [2022-07-19 17:22:53,087 INFO L899 garLoopResultBuilder]: For program point L610(line 610) no Hoare annotation was computed. [2022-07-19 17:22:53,088 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 132 140) the Hoare annotation is: true [2022-07-19 17:22:53,088 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 132 140) no Hoare annotation was computed. [2022-07-19 17:22:53,089 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 132 140) no Hoare annotation was computed. [2022-07-19 17:22:53,089 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 892) no Hoare annotation was computed. [2022-07-19 17:22:53,090 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 886 892) no Hoare annotation was computed. [2022-07-19 17:22:53,090 INFO L902 garLoopResultBuilder]: At program point L659(lines 652 661) the Hoare annotation is: true [2022-07-19 17:22:53,090 INFO L895 garLoopResultBuilder]: At program point L911(lines 866 913) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:53,090 INFO L895 garLoopResultBuilder]: At program point L878(line 878) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:53,091 INFO L899 garLoopResultBuilder]: For program point L672(lines 672 679) no Hoare annotation was computed. [2022-07-19 17:22:53,091 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:22:53,091 INFO L899 garLoopResultBuilder]: For program point L672-2(lines 672 679) no Hoare annotation was computed. [2022-07-19 17:22:53,091 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:22:53,091 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:22:53,091 INFO L895 garLoopResultBuilder]: At program point L846(line 846) the Hoare annotation is: false [2022-07-19 17:22:53,091 INFO L902 garLoopResultBuilder]: At program point L681(lines 662 684) the Hoare annotation is: true [2022-07-19 17:22:53,092 INFO L895 garLoopResultBuilder]: At program point L648(lines 644 650) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0)) [2022-07-19 17:22:53,092 INFO L895 garLoopResultBuilder]: At program point L582(lines 577 585) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) [2022-07-19 17:22:53,093 INFO L899 garLoopResultBuilder]: For program point L867(lines 866 913) no Hoare annotation was computed. [2022-07-19 17:22:53,093 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:22:53,094 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 909) no Hoare annotation was computed. [2022-07-19 17:22:53,094 INFO L895 garLoopResultBuilder]: At program point L574(lines 570 576) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:22:53,094 INFO L895 garLoopResultBuilder]: At program point L888(line 888) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:53,094 INFO L902 garLoopResultBuilder]: At program point L917(lines 856 921) the Hoare annotation is: true [2022-07-19 17:22:53,094 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 882) no Hoare annotation was computed. [2022-07-19 17:22:53,094 INFO L899 garLoopResultBuilder]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2022-07-19 17:22:53,095 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 872) no Hoare annotation was computed. [2022-07-19 17:22:53,095 INFO L895 garLoopResultBuilder]: At program point L567(lines 563 569) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-07-19 17:22:53,095 INFO L895 garLoopResultBuilder]: At program point L852(lines 840 854) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:53,095 INFO L895 garLoopResultBuilder]: At program point L914(lines 865 915) the Hoare annotation is: false [2022-07-19 17:22:53,095 INFO L899 garLoopResultBuilder]: For program point L844(lines 844 850) no Hoare annotation was computed. [2022-07-19 17:22:53,095 INFO L899 garLoopResultBuilder]: For program point L844-1(lines 844 850) no Hoare annotation was computed. [2022-07-19 17:22:53,095 INFO L899 garLoopResultBuilder]: For program point L902(lines 902 908) no Hoare annotation was computed. [2022-07-19 17:22:53,096 INFO L895 garLoopResultBuilder]: At program point L902-2(lines 896 909) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-19 17:22:53,096 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 108 119) no Hoare annotation was computed. [2022-07-19 17:22:53,096 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2022-07-19 17:22:53,096 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 108 119) the Hoare annotation is: true [2022-07-19 17:22:53,102 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-07-19 17:22:53,104 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:22:53,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:22:53 BoogieIcfgContainer [2022-07-19 17:22:53,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:22:53,131 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:22:53,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:22:53,132 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:22:53,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:22:51" (3/4) ... [2022-07-19 17:22:53,134 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:22:53,139 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:22:53,139 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:22:53,140 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:22:53,140 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:22:53,141 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:22:53,141 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-07-19 17:22:53,142 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:22:53,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-07-19 17:22:53,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:22:53,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:22:53,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:22:53,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:22:53,151 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:22:53,152 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:22:53,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive [2022-07-19 17:22:53,168 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive [2022-07-19 17:22:53,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:53,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) [2022-07-19 17:22:53,169 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) [2022-07-19 17:22:53,170 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 17:22:53,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:53,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:53,170 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) [2022-07-19 17:22:53,182 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:22:53,182 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:22:53,183 INFO L158 Benchmark]: Toolchain (without parser) took 2518.85ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 75.1MB in the beginning and 56.9MB in the end (delta: 18.3MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,183 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 92.1MB in the beginning and 92.1MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:22:53,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.90ms. Allocated memory is still 113.2MB. Free memory was 75.0MB in the beginning and 80.5MB in the end (delta: -5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.97ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 78.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,184 INFO L158 Benchmark]: Boogie Preprocessor took 17.18ms. Allocated memory is still 113.2MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,184 INFO L158 Benchmark]: RCFGBuilder took 405.02ms. Allocated memory is still 113.2MB. Free memory was 76.6MB in the beginning and 61.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,184 INFO L158 Benchmark]: TraceAbstraction took 1639.62ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 60.8MB in the beginning and 62.1MB in the end (delta: -1.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,184 INFO L158 Benchmark]: Witness Printer took 50.89ms. Allocated memory is still 136.3MB. Free memory was 62.1MB in the beginning and 56.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 17:22:53,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 113.2MB. Free memory was 92.1MB in the beginning and 92.1MB in the end (delta: 36.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.90ms. Allocated memory is still 113.2MB. Free memory was 75.0MB in the beginning and 80.5MB in the end (delta: -5.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.97ms. Allocated memory is still 113.2MB. Free memory was 80.5MB in the beginning and 78.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.18ms. Allocated memory is still 113.2MB. Free memory was 78.1MB in the beginning and 76.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 405.02ms. Allocated memory is still 113.2MB. Free memory was 76.6MB in the beginning and 61.3MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1639.62ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 60.8MB in the beginning and 62.1MB in the end (delta: -1.3MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. * Witness Printer took 50.89ms. Allocated memory is still 136.3MB. Free memory was 62.1MB in the beginning and 56.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 83]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 287 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 280 mSDsluCounter, 1154 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 750 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 193 IncrementalHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 404 mSDtfsCounter, 193 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=289occurred in iteration=4, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 15 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 370 PreInvPairs, 436 NumberOfFragments, 215 HoareAnnotationTreeSize, 370 FomulaSimplifications, 52 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 36 FomulaSimplificationsInter, 1632 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 140 ConstructedInterpolants, 0 QuantifiedInterpolants, 298 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 79]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 866]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || pumpRunning == 0) && ((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) && (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \result == 0)) - InvariantResult [Line: 724]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || (pumpRunning == 0 && !(0 == systemActive)) - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 652]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive - InvariantResult [Line: 865]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 563]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 662]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 840]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 570]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && \result == systemActive) && tmp == systemActive - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) RESULT: Ultimate proved your program to be correct! [2022-07-19 17:22:53,236 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