./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product14.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 dc29098f4fd0de7b34ca1f86e5228e41fa7841081f2e41f7454108ef1ad7724c --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 05:01:25,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 05:01:25,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 05:01:25,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 05:01:25,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 05:01:25,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 05:01:25,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 05:01:25,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 05:01:25,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 05:01:25,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 05:01:25,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 05:01:25,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 05:01:25,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 05:01:25,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 05:01:25,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 05:01:25,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 05:01:25,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 05:01:25,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 05:01:25,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 05:01:25,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 05:01:25,953 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 05:01:25,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 05:01:25,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 05:01:25,957 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 05:01:25,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 05:01:25,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 05:01:25,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 05:01:25,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 05:01:25,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 05:01:25,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 05:01:25,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 05:01:25,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 05:01:25,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 05:01:25,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 05:01:25,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 05:01:25,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 05:01:25,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 05:01:25,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 05:01:25,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 05:01:25,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 05:01:25,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 05:01:25,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 05:01:25,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 05:01:26,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 05:01:26,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 05:01:26,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 05:01:26,015 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 05:01:26,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 05:01:26,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 05:01:26,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 05:01:26,016 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 05:01:26,017 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 05:01:26,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 05:01:26,018 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 05:01:26,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 05:01:26,018 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 05:01:26,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 05:01:26,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 05:01:26,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 05:01:26,019 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 05:01:26,019 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 05:01:26,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 05:01:26,020 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 05:01:26,020 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 05:01:26,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 05:01:26,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 05:01:26,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 05:01:26,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:26,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 05:01:26,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 05:01:26,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 05:01:26,021 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 05:01:26,021 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 05:01:26,022 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 05:01:26,022 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 05:01:26,022 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 05:01:26,022 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc29098f4fd0de7b34ca1f86e5228e41fa7841081f2e41f7454108ef1ad7724c [2022-07-21 05:01:26,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 05:01:26,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 05:01:26,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 05:01:26,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 05:01:26,341 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 05:01:26,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2022-07-21 05:01:26,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fc6812d/a3e88f452b05433ebcc7551689c7b233/FLAG4e19636d6 [2022-07-21 05:01:26,867 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 05:01:26,868 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2022-07-21 05:01:26,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fc6812d/a3e88f452b05433ebcc7551689c7b233/FLAG4e19636d6 [2022-07-21 05:01:27,391 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9fc6812d/a3e88f452b05433ebcc7551689c7b233 [2022-07-21 05:01:27,394 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 05:01:27,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 05:01:27,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:27,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 05:01:27,399 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 05:01:27,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554e7f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27, skipping insertion in model container [2022-07-21 05:01:27,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 05:01:27,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 05:01:27,658 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_spec4_product14.cil.c[15980,15993] [2022-07-21 05:01:27,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:27,674 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 05:01:27,730 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_spec4_product14.cil.c[15980,15993] [2022-07-21 05:01:27,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 05:01:27,757 INFO L208 MainTranslator]: Completed translation [2022-07-21 05:01:27,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27 WrapperNode [2022-07-21 05:01:27,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 05:01:27,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:27,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 05:01:27,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 05:01:27,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,832 INFO L137 Inliner]: procedures = 52, calls = 151, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 216 [2022-07-21 05:01:27,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 05:01:27,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 05:01:27,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 05:01:27,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 05:01:27,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 05:01:27,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 05:01:27,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 05:01:27,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 05:01:27,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (1/1) ... [2022-07-21 05:01:27,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 05:01:27,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 05:01:27,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 05:01:27,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 05:01:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 05:01:27,952 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-21 05:01:27,953 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-21 05:01:27,953 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-21 05:01:27,953 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-21 05:01:27,954 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-21 05:01:27,954 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-21 05:01:27,955 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-21 05:01:27,956 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-21 05:01:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-21 05:01:27,956 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-21 05:01:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 05:01:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-21 05:01:27,956 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-21 05:01:27,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 05:01:27,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 05:01:28,052 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 05:01:28,053 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 05:01:28,366 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 05:01:28,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 05:01:28,372 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-21 05:01:28,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:28 BoogieIcfgContainer [2022-07-21 05:01:28,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 05:01:28,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 05:01:28,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 05:01:28,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 05:01:28,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 05:01:27" (1/3) ... [2022-07-21 05:01:28,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaf0f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:28, skipping insertion in model container [2022-07-21 05:01:28,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 05:01:27" (2/3) ... [2022-07-21 05:01:28,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1eaf0f6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 05:01:28, skipping insertion in model container [2022-07-21 05:01:28,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:28" (3/3) ... [2022-07-21 05:01:28,384 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2022-07-21 05:01:28,398 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 05:01:28,398 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 05:01:28,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 05:01:28,466 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@3834b497, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@18342180 [2022-07-21 05:01:28,467 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 05:01:28,479 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 61 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-21 05:01:28,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-21 05:01:28,489 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:28,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:28,491 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:28,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:28,497 INFO L85 PathProgramCache]: Analyzing trace with hash 543073060, now seen corresponding path program 1 times [2022-07-21 05:01:28,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:28,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611083451] [2022-07-21 05:01:28,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:28,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:28,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:28,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611083451] [2022-07-21 05:01:28,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611083451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:28,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:28,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 05:01:28,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084826254] [2022-07-21 05:01:28,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:28,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 05:01:28,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:28,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 05:01:28,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:28,803 INFO L87 Difference]: Start difference. First operand has 72 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 61 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:28,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:28,842 INFO L93 Difference]: Finished difference Result 136 states and 183 transitions. [2022-07-21 05:01:28,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 05:01:28,844 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-07-21 05:01:28,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:28,853 INFO L225 Difference]: With dead ends: 136 [2022-07-21 05:01:28,853 INFO L226 Difference]: Without dead ends: 63 [2022-07-21 05:01:28,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 05:01:28,862 INFO L413 NwaCegarLoop]: 88 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, 88 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:28,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:28,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-07-21 05:01:28,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2022-07-21 05:01:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 53 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 05:01:28,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 79 transitions. [2022-07-21 05:01:28,922 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 79 transitions. Word has length 19 [2022-07-21 05:01:28,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:28,923 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 79 transitions. [2022-07-21 05:01:28,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:28,924 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 79 transitions. [2022-07-21 05:01:28,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-21 05:01:28,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:28,943 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] [2022-07-21 05:01:28,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 05:01:28,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1467291632, now seen corresponding path program 1 times [2022-07-21 05:01:28,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:28,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465307449] [2022-07-21 05:01:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:28,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:29,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:29,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465307449] [2022-07-21 05:01:29,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465307449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:29,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:29,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:29,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221610578] [2022-07-21 05:01:29,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:29,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:29,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:29,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:29,065 INFO L87 Difference]: Start difference. First operand 63 states and 79 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:29,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:29,087 INFO L93 Difference]: Finished difference Result 91 states and 113 transitions. [2022-07-21 05:01:29,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-07-21 05:01:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:29,091 INFO L225 Difference]: With dead ends: 91 [2022-07-21 05:01:29,092 INFO L226 Difference]: Without dead ends: 54 [2022-07-21 05:01:29,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:29,098 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:29,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 115 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:29,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-21 05:01:29,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-21 05:01:29,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 47 states have internal predecessors, (55), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-21 05:01:29,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2022-07-21 05:01:29,116 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 20 [2022-07-21 05:01:29,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:29,117 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2022-07-21 05:01:29,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:29,118 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2022-07-21 05:01:29,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-21 05:01:29,124 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:29,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:29,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 05:01:29,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:29,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:29,132 INFO L85 PathProgramCache]: Analyzing trace with hash -522814899, now seen corresponding path program 1 times [2022-07-21 05:01:29,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:29,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667497599] [2022-07-21 05:01:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:29,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:29,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:29,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667497599] [2022-07-21 05:01:29,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667497599] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:29,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:29,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:29,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254970919] [2022-07-21 05:01:29,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:29,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:29,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:29,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:29,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:29,217 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:29,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:29,244 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2022-07-21 05:01:29,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:29,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-07-21 05:01:29,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:29,249 INFO L225 Difference]: With dead ends: 101 [2022-07-21 05:01:29,249 INFO L226 Difference]: Without dead ends: 54 [2022-07-21 05:01:29,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:29,252 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 61 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:29,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 65 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:29,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-07-21 05:01:29,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2022-07-21 05:01:29,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 47 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-21 05:01:29,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 66 transitions. [2022-07-21 05:01:29,258 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 66 transitions. Word has length 25 [2022-07-21 05:01:29,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:29,258 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 66 transitions. [2022-07-21 05:01:29,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:29,259 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2022-07-21 05:01:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-07-21 05:01:29,260 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:29,260 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] [2022-07-21 05:01:29,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 05:01:29,260 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:29,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:29,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2111262197, now seen corresponding path program 1 times [2022-07-21 05:01:29,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:29,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558198111] [2022-07-21 05:01:29,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:29,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-21 05:01:29,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:29,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:29,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558198111] [2022-07-21 05:01:29,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558198111] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:29,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:29,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 05:01:29,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672492328] [2022-07-21 05:01:29,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:29,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 05:01:29,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:29,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 05:01:29,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 05:01:29,380 INFO L87 Difference]: Start difference. First operand 54 states and 66 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:29,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:29,448 INFO L93 Difference]: Finished difference Result 141 states and 181 transitions. [2022-07-21 05:01:29,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 05:01:29,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-07-21 05:01:29,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:29,451 INFO L225 Difference]: With dead ends: 141 [2022-07-21 05:01:29,452 INFO L226 Difference]: Without dead ends: 94 [2022-07-21 05:01:29,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 05:01:29,460 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 38 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:29,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 257 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:29,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-21 05:01:29,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-07-21 05:01:29,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 80 states have internal predecessors, (92), 12 states have call successors, (12), 10 states have call predecessors, (12), 9 states have return successors, (13), 9 states have call predecessors, (13), 12 states have call successors, (13) [2022-07-21 05:01:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 117 transitions. [2022-07-21 05:01:29,486 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 117 transitions. Word has length 30 [2022-07-21 05:01:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:29,487 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 117 transitions. [2022-07-21 05:01:29,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:29,487 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 117 transitions. [2022-07-21 05:01:29,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-21 05:01:29,488 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:29,488 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] [2022-07-21 05:01:29,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 05:01:29,490 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:29,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:29,490 INFO L85 PathProgramCache]: Analyzing trace with hash 904425670, now seen corresponding path program 1 times [2022-07-21 05:01:29,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:29,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72839399] [2022-07-21 05:01:29,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:29,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-21 05:01:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:29,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:29,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72839399] [2022-07-21 05:01:29,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72839399] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:29,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:29,528 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-21 05:01:29,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081728382] [2022-07-21 05:01:29,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:29,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-21 05:01:29,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:29,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-21 05:01:29,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:29,529 INFO L87 Difference]: Start difference. First operand 94 states and 117 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:29,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:29,545 INFO L93 Difference]: Finished difference Result 160 states and 203 transitions. [2022-07-21 05:01:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-21 05:01:29,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 32 [2022-07-21 05:01:29,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:29,549 INFO L225 Difference]: With dead ends: 160 [2022-07-21 05:01:29,549 INFO L226 Difference]: Without dead ends: 73 [2022-07-21 05:01:29,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-21 05:01:29,550 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:29,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 47 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:29,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-07-21 05:01:29,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-07-21 05:01:29,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.2280701754385965) internal successors, (70), 61 states have internal predecessors, (70), 8 states have call successors, (8), 8 states have call predecessors, (8), 7 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-21 05:01:29,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 86 transitions. [2022-07-21 05:01:29,557 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 86 transitions. Word has length 32 [2022-07-21 05:01:29,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:29,557 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 86 transitions. [2022-07-21 05:01:29,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-21 05:01:29,557 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 86 transitions. [2022-07-21 05:01:29,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-21 05:01:29,564 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 05:01:29,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 05:01:29,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 05:01:29,565 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 05:01:29,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 05:01:29,565 INFO L85 PathProgramCache]: Analyzing trace with hash 884371153, now seen corresponding path program 1 times [2022-07-21 05:01:29,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 05:01:29,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605872614] [2022-07-21 05:01:29,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 05:01:29,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 05:01:29,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 05:01:29,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-21 05:01:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 05:01:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 05:01:29,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 05:01:29,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605872614] [2022-07-21 05:01:29,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605872614] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 05:01:29,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 05:01:29,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 05:01:29,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492112946] [2022-07-21 05:01:29,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 05:01:29,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 05:01:29,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 05:01:29,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 05:01:29,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-21 05:01:29,700 INFO L87 Difference]: Start difference. First operand 73 states and 86 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:01:29,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 05:01:29,780 INFO L93 Difference]: Finished difference Result 78 states and 91 transitions. [2022-07-21 05:01:29,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 05:01:29,781 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-07-21 05:01:29,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 05:01:29,781 INFO L225 Difference]: With dead ends: 78 [2022-07-21 05:01:29,781 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 05:01:29,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-21 05:01:29,783 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 44 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 05:01:29,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 140 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 05:01:29,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 05:01:29,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 05:01:29,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 05:01:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 05:01:29,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2022-07-21 05:01:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 05:01:29,786 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 05:01:29,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-21 05:01:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 05:01:29,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 05:01:29,789 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 05:01:29,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 05:01:29,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 05:01:30,218 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 120 131) the Hoare annotation is: true [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 120 131) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 120 131) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 783 812) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 801) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 783 812) the Hoare annotation is: true [2022-07-21 05:01:30,219 INFO L902 garLoopResultBuilder]: At program point L797-1(lines 797 801) the Hoare annotation is: true [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point L794(line 794) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L902 garLoopResultBuilder]: At program point L793-2(lines 793 807) the Hoare annotation is: true [2022-07-21 05:01:30,219 INFO L902 garLoopResultBuilder]: At program point L789(line 789) the Hoare annotation is: true [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point L789-1(line 789) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L902 garLoopResultBuilder]: At program point L808(lines 783 812) the Hoare annotation is: true [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point L804(line 804) no Hoare annotation was computed. [2022-07-21 05:01:30,219 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 896) no Hoare annotation was computed. [2022-07-21 05:01:30,220 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 899) no Hoare annotation was computed. [2022-07-21 05:01:30,220 INFO L895 garLoopResultBuilder]: At program point L886-1(lines 878 902) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2022-07-21 05:01:30,220 INFO L899 garLoopResultBuilder]: For program point L622-1(lines 621 640) no Hoare annotation was computed. [2022-07-21 05:01:30,220 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 618 641) no Hoare annotation was computed. [2022-07-21 05:01:30,220 INFO L895 garLoopResultBuilder]: At program point L705(lines 700 707) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,220 INFO L895 garLoopResultBuilder]: At program point L664(line 664) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,220 INFO L895 garLoopResultBuilder]: At program point L656(line 656) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,220 INFO L899 garLoopResultBuilder]: For program point L656-1(line 656) no Hoare annotation was computed. [2022-07-21 05:01:30,221 INFO L895 garLoopResultBuilder]: At program point L169(lines 164 172) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1))) [2022-07-21 05:01:30,221 INFO L895 garLoopResultBuilder]: At program point L669(line 669) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,221 INFO L895 garLoopResultBuilder]: At program point L669-1(lines 650 674) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,221 INFO L899 garLoopResultBuilder]: For program point L777(line 777) no Hoare annotation was computed. [2022-07-21 05:01:30,221 INFO L899 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2022-07-21 05:01:30,221 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 96 107) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,221 INFO L899 garLoopResultBuilder]: For program point L629-1(lines 629 635) no Hoare annotation was computed. [2022-07-21 05:01:30,221 INFO L895 garLoopResultBuilder]: At program point L724(lines 719 727) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 0) (= |timeShift_isPumpRunning_#res#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1))) [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 666) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 618 641) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point L654(lines 654 671) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 618 641) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L895 garLoopResultBuilder]: At program point L778(lines 773 780) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 777) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L895 garLoopResultBuilder]: At program point L601(lines 552 602) the Hoare annotation is: false [2022-07-21 05:01:30,222 INFO L895 garLoopResultBuilder]: At program point L841(lines 837 843) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 579) no Hoare annotation was computed. [2022-07-21 05:01:30,222 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 05:01:30,223 INFO L899 garLoopResultBuilder]: For program point L573-1(lines 573 579) no Hoare annotation was computed. [2022-07-21 05:01:30,223 INFO L895 garLoopResultBuilder]: At program point L598(lines 553 600) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:01:30,223 INFO L895 garLoopResultBuilder]: At program point L565(line 565) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:01:30,223 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 05:01:30,223 INFO L895 garLoopResultBuilder]: At program point L83(lines 78 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:30,223 INFO L902 garLoopResultBuilder]: At program point L851(lines 844 853) the Hoare annotation is: true [2022-07-21 05:01:30,223 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 595) no Hoare annotation was computed. [2022-07-21 05:01:30,223 INFO L895 garLoopResultBuilder]: At program point L591-2(lines 583 596) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:01:30,223 INFO L895 garLoopResultBuilder]: At program point L75(lines 71 77) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:30,223 INFO L899 garLoopResultBuilder]: For program point L554(lines 553 600) no Hoare annotation was computed. [2022-07-21 05:01:30,223 INFO L899 garLoopResultBuilder]: For program point L583(lines 583 596) no Hoare annotation was computed. [2022-07-21 05:01:30,223 INFO L895 garLoopResultBuilder]: At program point L769(lines 764 771) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 871) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L895 garLoopResultBuilder]: At program point L575(line 575) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point L864-2(lines 864 871) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L902 garLoopResultBuilder]: At program point L604(lines 543 608) the Hoare annotation is: true [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point L563(lines 563 569) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 563 569) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 559) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L902 garLoopResultBuilder]: At program point L873(lines 854 876) the Hoare annotation is: true [2022-07-21 05:01:30,224 INFO L895 garLoopResultBuilder]: At program point L68(lines 64 70) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 108 119) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 108 119) no Hoare annotation was computed. [2022-07-21 05:01:30,224 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 108 119) the Hoare annotation is: (or (not (= ~pumpRunning~0 0)) (not (= 1 ~systemActive~0)) (= |old(~waterLevel~0)| ~waterLevel~0)) [2022-07-21 05:01:30,225 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 642 648) no Hoare annotation was computed. [2022-07-21 05:01:30,225 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryFINAL(lines 642 648) the Hoare annotation is: true [2022-07-21 05:01:30,225 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 708 718) the Hoare annotation is: true [2022-07-21 05:01:30,225 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 708 718) no Hoare annotation was computed. [2022-07-21 05:01:30,225 INFO L902 garLoopResultBuilder]: At program point L137(lines 132 140) the Hoare annotation is: true [2022-07-21 05:01:30,225 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 708 718) no Hoare annotation was computed. [2022-07-21 05:01:30,229 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-07-21 05:01:30,231 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 05:01:30,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 05:01:30 BoogieIcfgContainer [2022-07-21 05:01:30,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 05:01:30,247 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 05:01:30,247 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 05:01:30,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 05:01:30,248 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 05:01:28" (3/4) ... [2022-07-21 05:01:30,250 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 05:01:30,255 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-21 05:01:30,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-21 05:01:30,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-21 05:01:30,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-21 05:01:30,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-21 05:01:30,256 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-21 05:01:30,262 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 48 nodes and edges [2022-07-21 05:01:30,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-21 05:01:30,263 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-21 05:01:30,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-21 05:01:30,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 05:01:30,264 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:01:30,265 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 05:01:30,286 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-07-21 05:01:30,286 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) [2022-07-21 05:01:30,287 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2022-07-21 05:01:30,287 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-07-21 05:01:30,287 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) [2022-07-21 05:01:30,288 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-07-21 05:01:30,288 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(pumpRunning) == 0) || !(1 == systemActive) [2022-07-21 05:01:30,314 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 05:01:30,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 05:01:30,314 INFO L158 Benchmark]: Toolchain (without parser) took 2919.85ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 41.8MB in the beginning and 32.9MB in the end (delta: 8.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,315 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory was 27.8MB in the beginning and 27.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 05:01:30,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.70ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 38.3MB in the end (delta: 3.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.60ms. Allocated memory is still 58.7MB. Free memory was 38.3MB in the beginning and 35.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,316 INFO L158 Benchmark]: Boogie Preprocessor took 44.54ms. Allocated memory is still 58.7MB. Free memory was 35.8MB in the beginning and 34.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,316 INFO L158 Benchmark]: RCFGBuilder took 495.53ms. Allocated memory is still 58.7MB. Free memory was 34.4MB in the beginning and 35.3MB in the end (delta: -903.6kB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,316 INFO L158 Benchmark]: TraceAbstraction took 1870.56ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 37.6MB in the end (delta: -2.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,317 INFO L158 Benchmark]: Witness Printer took 67.17ms. Allocated memory is still 71.3MB. Free memory was 37.6MB in the beginning and 32.9MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-21 05:01:30,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 46.1MB. Free memory was 27.8MB in the beginning and 27.7MB in the end (delta: 28.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.70ms. Allocated memory is still 58.7MB. Free memory was 41.6MB in the beginning and 38.3MB in the end (delta: 3.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.60ms. Allocated memory is still 58.7MB. Free memory was 38.3MB in the beginning and 35.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.54ms. Allocated memory is still 58.7MB. Free memory was 35.8MB in the beginning and 34.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.53ms. Allocated memory is still 58.7MB. Free memory was 34.4MB in the beginning and 35.3MB in the end (delta: -903.6kB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1870.56ms. Allocated memory was 58.7MB in the beginning and 71.3MB in the end (delta: 12.6MB). Free memory was 34.7MB in the beginning and 37.6MB in the end (delta: -2.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Witness Printer took 67.17ms. Allocated memory is still 71.3MB. Free memory was 37.6MB in the beginning and 32.9MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 777]: 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 7 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 193 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 189 mSDsluCounter, 712 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 335 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 377 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=4, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 184 PreInvPairs, 208 NumberOfFragments, 311 HoareAnnotationTreeSize, 184 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 34 FomulaSimplificationsInter, 394 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 160 NumberOfCodeBlocks, 160 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 154 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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) || !(1 == systemActive) - InvariantResult [Line: 719]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 793]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 552]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 854]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || \result == 1) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 844]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 543]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 783]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 878]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0 - InvariantResult [Line: 700]: Loop Invariant Derived loop invariant: !(\old(pumpRunning) == 0) || !(1 == systemActive) RESULT: Ultimate proved your program to be correct! [2022-07-21 05:01:30,366 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