./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product61.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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:25:29,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:25:29,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:25:29,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:25:29,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:25:29,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:25:29,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:25:29,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:25:29,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:25:29,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:25:29,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:25:29,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:25:29,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:25:29,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:25:29,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:25:29,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:25:29,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:25:29,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:25:29,724 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:25:29,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:25:29,732 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:25:29,733 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:25:29,734 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:25:29,735 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:25:29,735 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:25:29,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:25:29,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:25:29,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:25:29,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:25:29,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:25:29,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:25:29,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:25:29,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:25:29,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:25:29,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:25:29,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:25:29,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:25:29,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:25:29,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:25:29,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:25:29,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:25:29,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:25:29,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:25:29,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:25:29,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:25:29,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:25:29,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:25:29,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:25:29,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:25:29,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:25:29,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:25:29,790 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:25:29,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:25:29,791 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:25:29,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:25:29,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:25:29,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:25:29,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:25:29,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:25:29,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:25:29,792 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:25:29,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:25:29,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:25:29,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:25:29,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:25:29,795 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:25:29,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:25:29,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:25:29,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:25:29,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:25:29,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:25:29,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:25:29,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:25:29,796 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:25:29,797 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:25:29,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:25:29,797 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2022-07-19 17:25:30,046 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:25:30,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:25:30,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:25:30,079 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:25:30,079 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:25:30,080 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2022-07-19 17:25:30,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7db32450f/4c59c1a7f97d4c35855e62599f3b5827/FLAGeba56fbed [2022-07-19 17:25:30,562 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:25:30,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2022-07-19 17:25:30,573 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7db32450f/4c59c1a7f97d4c35855e62599f3b5827/FLAGeba56fbed [2022-07-19 17:25:30,933 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7db32450f/4c59c1a7f97d4c35855e62599f3b5827 [2022-07-19 17:25:30,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:25:30,936 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:25:30,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:25:30,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:25:30,941 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:25:30,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:25:30" (1/1) ... [2022-07-19 17:25:30,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bed4b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:30, skipping insertion in model container [2022-07-19 17:25:30,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:25:30" (1/1) ... [2022-07-19 17:25:30,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:25:30,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:25:31,122 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_product61.cil.c[1605,1618] [2022-07-19 17:25:31,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:25:31,223 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:25:31,235 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_product61.cil.c[1605,1618] [2022-07-19 17:25:31,292 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:25:31,310 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:25:31,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31 WrapperNode [2022-07-19 17:25:31,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:25:31,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:25:31,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:25:31,313 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:25:31,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,389 INFO L137 Inliner]: procedures = 57, calls = 160, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 289 [2022-07-19 17:25:31,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:25:31,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:25:31,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:25:31,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:25:31,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:25:31,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:25:31,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:25:31,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:25:31,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (1/1) ... [2022-07-19 17:25:31,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:25:31,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:31,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:25:31,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:25:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:25:31,498 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:25:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:25:31,499 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:25:31,499 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:25:31,500 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:25:31,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:25:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:25:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:25:31,503 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:25:31,503 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:25:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:25:31,504 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:25:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-07-19 17:25:31,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-07-19 17:25:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-07-19 17:25:31,504 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-07-19 17:25:31,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:25:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:25:31,505 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:25:31,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:25:31,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:25:31,585 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:25:31,586 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:25:31,904 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:25:31,913 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:25:31,913 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:25:31,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:31 BoogieIcfgContainer [2022-07-19 17:25:31,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:25:31,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:25:31,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:25:31,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:25:31,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:25:30" (1/3) ... [2022-07-19 17:25:31,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d10a249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:25:31, skipping insertion in model container [2022-07-19 17:25:31,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:25:31" (2/3) ... [2022-07-19 17:25:31,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d10a249 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:25:31, skipping insertion in model container [2022-07-19 17:25:31,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:31" (3/3) ... [2022-07-19 17:25:31,923 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2022-07-19 17:25:31,936 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:25:31,937 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:25:31,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:25:31,988 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@1bc5501, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@71231779 [2022-07-19 17:25:31,988 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:25:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-07-19 17:25:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-07-19 17:25:32,001 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:32,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:32,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:32,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:32,008 INFO L85 PathProgramCache]: Analyzing trace with hash 332135154, now seen corresponding path program 1 times [2022-07-19 17:25:32,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:32,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698606680] [2022-07-19 17:25:32,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:32,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:32,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:32,258 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698606680] [2022-07-19 17:25:32,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698606680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:32,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:32,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:25:32,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280357667] [2022-07-19 17:25:32,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:32,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:25:32,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:32,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:25:32,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:25:32,290 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) 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) [2022-07-19 17:25:32,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:32,326 INFO L93 Difference]: Finished difference Result 198 states and 269 transitions. [2022-07-19 17:25:32,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:25:32,328 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 [2022-07-19 17:25:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:32,337 INFO L225 Difference]: With dead ends: 198 [2022-07-19 17:25:32,337 INFO L226 Difference]: Without dead ends: 94 [2022-07-19 17:25:32,341 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 [2022-07-19 17:25:32,344 INFO L413 NwaCegarLoop]: 131 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, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:32,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:32,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-07-19 17:25:32,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2022-07-19 17:25:32,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.318840579710145) internal successors, (91), 78 states have internal predecessors, (91), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-07-19 17:25:32,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2022-07-19 17:25:32,385 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 19 [2022-07-19 17:25:32,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:32,385 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2022-07-19 17:25:32,386 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) [2022-07-19 17:25:32,386 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2022-07-19 17:25:32,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-07-19 17:25:32,390 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:32,390 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] [2022-07-19 17:25:32,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:25:32,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:32,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:32,391 INFO L85 PathProgramCache]: Analyzing trace with hash 2057254746, now seen corresponding path program 1 times [2022-07-19 17:25:32,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:32,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976128893] [2022-07-19 17:25:32,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:32,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:32,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:32,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976128893] [2022-07-19 17:25:32,459 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976128893] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:32,459 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:32,459 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:25:32,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273695067] [2022-07-19 17:25:32,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:32,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:32,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:32,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:32,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:32,463 INFO L87 Difference]: Start difference. First operand 94 states and 122 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) [2022-07-19 17:25:32,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:32,489 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2022-07-19 17:25:32,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:32,490 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 [2022-07-19 17:25:32,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:32,492 INFO L225 Difference]: With dead ends: 154 [2022-07-19 17:25:32,492 INFO L226 Difference]: Without dead ends: 85 [2022-07-19 17:25:32,493 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 [2022-07-19 17:25:32,494 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:32,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 202 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-19 17:25:32,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-07-19 17:25:32,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-19 17:25:32,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2022-07-19 17:25:32,521 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 20 [2022-07-19 17:25:32,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:32,521 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2022-07-19 17:25:32,522 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) [2022-07-19 17:25:32,523 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2022-07-19 17:25:32,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 17:25:32,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:32,524 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:32,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:25:32,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:32,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:32,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1387625524, now seen corresponding path program 1 times [2022-07-19 17:25:32,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:32,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600833613] [2022-07-19 17:25:32,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:32,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:32,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:32,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:32,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600833613] [2022-07-19 17:25:32,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600833613] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:32,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:32,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:25:32,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973983561] [2022-07-19 17:25:32,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:32,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:25:32,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:32,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:25:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:32,605 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2022-07-19 17:25:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:32,654 INFO L93 Difference]: Finished difference Result 163 states and 214 transitions. [2022-07-19 17:25:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:25:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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 24 [2022-07-19 17:25:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:32,666 INFO L225 Difference]: With dead ends: 163 [2022-07-19 17:25:32,666 INFO L226 Difference]: Without dead ends: 85 [2022-07-19 17:25:32,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:25:32,668 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:32,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 108 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:32,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-07-19 17:25:32,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-07-19 17:25:32,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 72 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-07-19 17:25:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2022-07-19 17:25:32,678 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 24 [2022-07-19 17:25:32,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:32,681 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2022-07-19 17:25:32,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 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) [2022-07-19 17:25:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2022-07-19 17:25:32,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-07-19 17:25:32,688 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:32,689 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:32,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:25:32,689 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:32,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:32,690 INFO L85 PathProgramCache]: Analyzing trace with hash 610675451, now seen corresponding path program 1 times [2022-07-19 17:25:32,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:32,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122104811] [2022-07-19 17:25:32,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:32,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:32,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-19 17:25:32,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:32,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122104811] [2022-07-19 17:25:32,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122104811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:32,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:32,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 17:25:32,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069215391] [2022-07-19 17:25:32,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:32,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 17:25:32,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:32,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 17:25:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 17:25:32,785 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 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) [2022-07-19 17:25:32,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:32,966 INFO L93 Difference]: Finished difference Result 238 states and 306 transitions. [2022-07-19 17:25:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:25:32,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 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 37 [2022-07-19 17:25:32,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:32,968 INFO L225 Difference]: With dead ends: 238 [2022-07-19 17:25:32,968 INFO L226 Difference]: Without dead ends: 160 [2022-07-19 17:25:32,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:25:32,970 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 153 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:32,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 200 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-07-19 17:25:32,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 154. [2022-07-19 17:25:32,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 126 states have internal predecessors, (149), 16 states have call successors, (16), 15 states have call predecessors, (16), 20 states have return successors, (27), 18 states have call predecessors, (27), 16 states have call successors, (27) [2022-07-19 17:25:32,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 192 transitions. [2022-07-19 17:25:32,989 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 192 transitions. Word has length 37 [2022-07-19 17:25:32,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:32,989 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 192 transitions. [2022-07-19 17:25:32,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 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) [2022-07-19 17:25:32,990 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 192 transitions. [2022-07-19 17:25:32,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-19 17:25:32,991 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:32,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:32,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:25:32,991 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:32,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1599675381, now seen corresponding path program 1 times [2022-07-19 17:25:32,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:32,992 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418372764] [2022-07-19 17:25:32,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:32,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:33,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:33,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:33,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418372764] [2022-07-19 17:25:33,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418372764] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:33,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:33,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:33,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314689885] [2022-07-19 17:25:33,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:33,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:33,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:33,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:33,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:33,078 INFO L87 Difference]: Start difference. First operand 154 states and 192 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 17:25:33,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:33,531 INFO L93 Difference]: Finished difference Result 589 states and 788 transitions. [2022-07-19 17:25:33,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-19 17:25:33,532 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-07-19 17:25:33,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:33,541 INFO L225 Difference]: With dead ends: 589 [2022-07-19 17:25:33,542 INFO L226 Difference]: Without dead ends: 442 [2022-07-19 17:25:33,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2022-07-19 17:25:33,552 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 358 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 129 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:33,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 521 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [129 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:25:33,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2022-07-19 17:25:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 424. [2022-07-19 17:25:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 317 states have (on average 1.2460567823343849) internal successors, (395), 342 states have internal predecessors, (395), 46 states have call successors, (46), 43 states have call predecessors, (46), 60 states have return successors, (105), 54 states have call predecessors, (105), 46 states have call successors, (105) [2022-07-19 17:25:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 546 transitions. [2022-07-19 17:25:33,636 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 546 transitions. Word has length 45 [2022-07-19 17:25:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:33,636 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 546 transitions. [2022-07-19 17:25:33,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 17:25:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 546 transitions. [2022-07-19 17:25:33,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-07-19 17:25:33,641 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:33,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:33,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:25:33,642 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:33,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:33,642 INFO L85 PathProgramCache]: Analyzing trace with hash 414561125, now seen corresponding path program 1 times [2022-07-19 17:25:33,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:33,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130180110] [2022-07-19 17:25:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:33,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:33,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 17:25:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:33,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:33,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:33,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130180110] [2022-07-19 17:25:33,736 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130180110] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:33,736 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:33,736 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:33,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901860983] [2022-07-19 17:25:33,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:33,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:33,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:33,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:33,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:33,738 INFO L87 Difference]: Start difference. First operand 424 states and 546 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:25:34,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:34,147 INFO L93 Difference]: Finished difference Result 515 states and 667 transitions. [2022-07-19 17:25:34,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-19 17:25:34,147 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2022-07-19 17:25:34,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:34,151 INFO L225 Difference]: With dead ends: 515 [2022-07-19 17:25:34,151 INFO L226 Difference]: Without dead ends: 513 [2022-07-19 17:25:34,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=127, Invalid=335, Unknown=0, NotChecked=0, Total=462 [2022-07-19 17:25:34,153 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 232 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:34,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 399 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-19 17:25:34,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-19 17:25:34,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 465. [2022-07-19 17:25:34,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 350 states have (on average 1.2314285714285715) internal successors, (431), 378 states have internal predecessors, (431), 50 states have call successors, (50), 43 states have call predecessors, (50), 64 states have return successors, (119), 59 states have call predecessors, (119), 50 states have call successors, (119) [2022-07-19 17:25:34,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 600 transitions. [2022-07-19 17:25:34,183 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 600 transitions. Word has length 49 [2022-07-19 17:25:34,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:34,183 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 600 transitions. [2022-07-19 17:25:34,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:25:34,184 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 600 transitions. [2022-07-19 17:25:34,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 17:25:34,185 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:34,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:34,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:25:34,186 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:34,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:34,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1510129521, now seen corresponding path program 1 times [2022-07-19 17:25:34,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:34,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770694454] [2022-07-19 17:25:34,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:34,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:34,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:34,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 17:25:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:34,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:34,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:34,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770694454] [2022-07-19 17:25:34,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770694454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:34,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:34,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:34,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930552643] [2022-07-19 17:25:34,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:34,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:34,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:34,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:34,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:34,254 INFO L87 Difference]: Start difference. First operand 465 states and 600 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:25:34,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:34,535 INFO L93 Difference]: Finished difference Result 971 states and 1329 transitions. [2022-07-19 17:25:34,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-19 17:25:34,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2022-07-19 17:25:34,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:34,539 INFO L225 Difference]: With dead ends: 971 [2022-07-19 17:25:34,539 INFO L226 Difference]: Without dead ends: 513 [2022-07-19 17:25:34,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:34,542 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 158 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:34,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 324 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:25:34,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2022-07-19 17:25:34,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 474. [2022-07-19 17:25:34,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 359 states have (on average 1.2256267409470751) internal successors, (440), 387 states have internal predecessors, (440), 50 states have call successors, (50), 43 states have call predecessors, (50), 64 states have return successors, (119), 59 states have call predecessors, (119), 50 states have call successors, (119) [2022-07-19 17:25:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 609 transitions. [2022-07-19 17:25:34,568 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 609 transitions. Word has length 55 [2022-07-19 17:25:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:34,568 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 609 transitions. [2022-07-19 17:25:34,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-07-19 17:25:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 609 transitions. [2022-07-19 17:25:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-19 17:25:34,570 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:34,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:34,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:25:34,570 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:34,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1644143027, now seen corresponding path program 1 times [2022-07-19 17:25:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:34,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398727154] [2022-07-19 17:25:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:34,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:34,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 17:25:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:34,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:34,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398727154] [2022-07-19 17:25:34,634 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398727154] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:34,634 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:25:34,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:25:34,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618632590] [2022-07-19 17:25:34,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:34,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:25:34,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:34,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:25:34,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:25:34,636 INFO L87 Difference]: Start difference. First operand 474 states and 609 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-19 17:25:34,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:34,872 INFO L93 Difference]: Finished difference Result 942 states and 1257 transitions. [2022-07-19 17:25:34,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-19 17:25:34,873 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2022-07-19 17:25:34,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:34,876 INFO L225 Difference]: With dead ends: 942 [2022-07-19 17:25:34,876 INFO L226 Difference]: Without dead ends: 475 [2022-07-19 17:25:34,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:34,878 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 255 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:34,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 260 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:25:34,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2022-07-19 17:25:34,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 458. [2022-07-19 17:25:34,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 346 states have (on average 1.2196531791907514) internal successors, (422), 373 states have internal predecessors, (422), 50 states have call successors, (50), 42 states have call predecessors, (50), 61 states have return successors, (113), 57 states have call predecessors, (113), 50 states have call successors, (113) [2022-07-19 17:25:34,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 585 transitions. [2022-07-19 17:25:34,904 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 585 transitions. Word has length 55 [2022-07-19 17:25:34,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:34,905 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 585 transitions. [2022-07-19 17:25:34,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-07-19 17:25:34,920 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 585 transitions. [2022-07-19 17:25:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-07-19 17:25:34,923 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:34,923 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:34,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:25:34,923 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:34,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:34,924 INFO L85 PathProgramCache]: Analyzing trace with hash -493181504, now seen corresponding path program 1 times [2022-07-19 17:25:34,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:34,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501925757] [2022-07-19 17:25:34,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:34,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:34,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:34,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:34,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-19 17:25:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-19 17:25:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:35,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:35,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,043 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-19 17:25:35,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:35,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501925757] [2022-07-19 17:25:35,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501925757] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:35,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184331225] [2022-07-19 17:25:35,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:35,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:35,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:35,051 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:25:35,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 17:25:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:35,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-19 17:25:35,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:35,380 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:25:35,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 17:25:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-19 17:25:35,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184331225] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 17:25:35,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-19 17:25:35,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 11 [2022-07-19 17:25:35,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397740497] [2022-07-19 17:25:35,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-19 17:25:35,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-19 17:25:35,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:35,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-19 17:25:35,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:25:35,563 INFO L87 Difference]: Start difference. First operand 458 states and 585 transitions. Second operand has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:25:36,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:36,381 INFO L93 Difference]: Finished difference Result 1035 states and 1398 transitions. [2022-07-19 17:25:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-07-19 17:25:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 101 [2022-07-19 17:25:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:36,385 INFO L225 Difference]: With dead ends: 1035 [2022-07-19 17:25:36,385 INFO L226 Difference]: Without dead ends: 584 [2022-07-19 17:25:36,388 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 220 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=279, Invalid=843, Unknown=0, NotChecked=0, Total=1122 [2022-07-19 17:25:36,389 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 462 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:36,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 649 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-19 17:25:36,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2022-07-19 17:25:36,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 515. [2022-07-19 17:25:36,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 388 states have (on average 1.2190721649484537) internal successors, (473), 416 states have internal predecessors, (473), 61 states have call successors, (61), 54 states have call predecessors, (61), 65 states have return successors, (136), 62 states have call predecessors, (136), 61 states have call successors, (136) [2022-07-19 17:25:36,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 670 transitions. [2022-07-19 17:25:36,421 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 670 transitions. Word has length 101 [2022-07-19 17:25:36,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:36,422 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 670 transitions. [2022-07-19 17:25:36,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.272727272727273) internal successors, (102), 8 states have internal predecessors, (102), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:25:36,422 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 670 transitions. [2022-07-19 17:25:36,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 17:25:36,425 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:36,425 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:36,455 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:36,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:36,651 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:36,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:36,651 INFO L85 PathProgramCache]: Analyzing trace with hash -879070667, now seen corresponding path program 2 times [2022-07-19 17:25:36,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:36,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54466939] [2022-07-19 17:25:36,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:36,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:36,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:36,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:36,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:25:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:25:36,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:25:36,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:36,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:25:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:25:36,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:36,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:36,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 49 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-07-19 17:25:36,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:36,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54466939] [2022-07-19 17:25:36,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54466939] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:36,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99124830] [2022-07-19 17:25:36,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 17:25:36,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:36,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:36,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:25:36,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 17:25:37,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 17:25:37,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 17:25:37,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-19 17:25:37,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:37,183 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-07-19 17:25:37,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:25:37,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99124830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:37,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:25:37,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2022-07-19 17:25:37,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137091813] [2022-07-19 17:25:37,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:37,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:37,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:37,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:37,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:37,187 INFO L87 Difference]: Start difference. First operand 515 states and 670 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:25:37,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:37,459 INFO L93 Difference]: Finished difference Result 1230 states and 1669 transitions. [2022-07-19 17:25:37,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 17:25:37,460 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2022-07-19 17:25:37,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:37,465 INFO L225 Difference]: With dead ends: 1230 [2022-07-19 17:25:37,465 INFO L226 Difference]: Without dead ends: 856 [2022-07-19 17:25:37,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 174 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:25:37,468 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 225 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 625 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:37,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 625 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:25:37,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2022-07-19 17:25:37,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 831. [2022-07-19 17:25:37,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 831 states, 625 states have (on average 1.2112) internal successors, (757), 661 states have internal predecessors, (757), 96 states have call successors, (96), 90 states have call predecessors, (96), 109 states have return successors, (207), 102 states have call predecessors, (207), 96 states have call successors, (207) [2022-07-19 17:25:37,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1060 transitions. [2022-07-19 17:25:37,513 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1060 transitions. Word has length 147 [2022-07-19 17:25:37,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:37,513 INFO L495 AbstractCegarLoop]: Abstraction has 831 states and 1060 transitions. [2022-07-19 17:25:37,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-07-19 17:25:37,514 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1060 transitions. [2022-07-19 17:25:37,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-07-19 17:25:37,517 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:37,517 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:37,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:37,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-19 17:25:37,742 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:37,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:37,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1643986723, now seen corresponding path program 1 times [2022-07-19 17:25:37,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:37,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164448089] [2022-07-19 17:25:37,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:37,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:25:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:37,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-07-19 17:25:37,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:25:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:25:37,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:37,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-19 17:25:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-19 17:25:37,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 38 proven. 17 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2022-07-19 17:25:37,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:37,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164448089] [2022-07-19 17:25:37,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164448089] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:37,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358529711] [2022-07-19 17:25:37,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:37,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:37,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:37,870 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:25:37,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 17:25:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:37,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-19 17:25:37,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:38,104 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2022-07-19 17:25:38,105 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:25:38,105 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358529711] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:38,105 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:25:38,105 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 12 [2022-07-19 17:25:38,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33538981] [2022-07-19 17:25:38,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:38,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:25:38,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:38,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:25:38,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-07-19 17:25:38,107 INFO L87 Difference]: Start difference. First operand 831 states and 1060 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-19 17:25:38,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:38,413 INFO L93 Difference]: Finished difference Result 1733 states and 2247 transitions. [2022-07-19 17:25:38,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:25:38,414 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) Word has length 143 [2022-07-19 17:25:38,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:38,419 INFO L225 Difference]: With dead ends: 1733 [2022-07-19 17:25:38,419 INFO L226 Difference]: Without dead ends: 954 [2022-07-19 17:25:38,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 165 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2022-07-19 17:25:38,423 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 179 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:38,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 368 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-19 17:25:38,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2022-07-19 17:25:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 826. [2022-07-19 17:25:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 621 states have (on average 1.2077294685990339) internal successors, (750), 654 states have internal predecessors, (750), 96 states have call successors, (96), 90 states have call predecessors, (96), 108 states have return successors, (196), 101 states have call predecessors, (196), 96 states have call successors, (196) [2022-07-19 17:25:38,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1042 transitions. [2022-07-19 17:25:38,477 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1042 transitions. Word has length 143 [2022-07-19 17:25:38,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:38,477 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1042 transitions. [2022-07-19 17:25:38,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 5 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 5 states have call successors, (9) [2022-07-19 17:25:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1042 transitions. [2022-07-19 17:25:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-07-19 17:25:38,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:25:38,481 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:38,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:38,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:38,696 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:25:38,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:25:38,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2095224393, now seen corresponding path program 1 times [2022-07-19 17:25:38,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:25:38,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057487321] [2022-07-19 17:25:38,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:38,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:25:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:25:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-19 17:25:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:25:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-19 17:25:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-19 17:25:38,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-19 17:25:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-19 17:25:38,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:38,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-19 17:25:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-19 17:25:38,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-19 17:25:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-19 17:25:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-07-19 17:25:38,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:25:38,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057487321] [2022-07-19 17:25:38,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057487321] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-19 17:25:38,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619494610] [2022-07-19 17:25:38,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:25:38,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:38,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:25:38,814 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 17:25:38,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-19 17:25:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:25:38,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-19 17:25:38,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 17:25:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-07-19 17:25:38,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-19 17:25:38,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619494610] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:25:38,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-19 17:25:38,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2022-07-19 17:25:38,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207389725] [2022-07-19 17:25:38,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:25:38,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:25:38,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:25:38,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:25:38,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:25:38,954 INFO L87 Difference]: Start difference. First operand 826 states and 1042 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:25:38,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:25:38,999 INFO L93 Difference]: Finished difference Result 1128 states and 1412 transitions. [2022-07-19 17:25:39,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 17:25:39,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 147 [2022-07-19 17:25:39,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:25:39,001 INFO L225 Difference]: With dead ends: 1128 [2022-07-19 17:25:39,001 INFO L226 Difference]: Without dead ends: 0 [2022-07-19 17:25:39,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-07-19 17:25:39,005 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 9 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:25:39,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 411 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:25:39,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-19 17:25:39,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-19 17:25:39,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-19 17:25:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-19 17:25:39,006 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2022-07-19 17:25:39,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:25:39,007 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-19 17:25:39,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-07-19 17:25:39,007 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-19 17:25:39,007 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-19 17:25:39,009 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:25:39,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-19 17:25:39,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 17:25:39,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-19 17:25:41,632 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 245 252) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 245 252) no Hoare annotation was computed. [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 245 252) no Hoare annotation was computed. [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 135 141) no Hoare annotation was computed. [2022-07-19 17:25:41,632 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 135 141) the Hoare annotation is: true [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point L447-1(lines 443 454) no Hoare annotation was computed. [2022-07-19 17:25:41,632 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 443 454) the Hoare annotation is: true [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 443 454) no Hoare annotation was computed. [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 913 942) no Hoare annotation was computed. [2022-07-19 17:25:41,632 INFO L899 garLoopResultBuilder]: For program point L927(lines 927 931) no Hoare annotation was computed. [2022-07-19 17:25:41,633 INFO L902 garLoopResultBuilder]: At program point L927-1(lines 927 931) the Hoare annotation is: true [2022-07-19 17:25:41,633 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 913 942) the Hoare annotation is: true [2022-07-19 17:25:41,633 INFO L899 garLoopResultBuilder]: For program point L924(line 924) no Hoare annotation was computed. [2022-07-19 17:25:41,633 INFO L902 garLoopResultBuilder]: At program point L923-2(lines 923 937) the Hoare annotation is: true [2022-07-19 17:25:41,633 INFO L902 garLoopResultBuilder]: At program point L919(line 919) the Hoare annotation is: true [2022-07-19 17:25:41,633 INFO L899 garLoopResultBuilder]: For program point L919-1(line 919) no Hoare annotation was computed. [2022-07-19 17:25:41,633 INFO L902 garLoopResultBuilder]: At program point L938(lines 913 942) the Hoare annotation is: true [2022-07-19 17:25:41,633 INFO L899 garLoopResultBuilder]: For program point L934(line 934) no Hoare annotation was computed. [2022-07-19 17:25:41,633 INFO L899 garLoopResultBuilder]: For program point L122-1(lines 122 128) no Hoare annotation was computed. [2022-07-19 17:25:41,633 INFO L895 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| ~systemActive~0))))) [2022-07-19 17:25:41,633 INFO L895 garLoopResultBuilder]: At program point L205(line 205) the Hoare annotation is: (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| ~systemActive~0))))) [2022-07-19 17:25:41,633 INFO L895 garLoopResultBuilder]: At program point L201(line 201) the Hoare annotation is: (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| ~systemActive~0))))) [2022-07-19 17:25:41,633 INFO L899 garLoopResultBuilder]: For program point L201-1(line 201) no Hoare annotation was computed. [2022-07-19 17:25:41,633 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 111 134) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L895 garLoopResultBuilder]: At program point L214(line 214) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-19 17:25:41,634 INFO L895 garLoopResultBuilder]: At program point L214-1(lines 195 219) the Hoare annotation is: (let ((.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (let ((.cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and (<= 2 ~waterLevel~0) .cse0) (and .cse1 (<= 1 ~waterLevel~0) .cse0) .cse2 .cse3)) (or .cse4 .cse2 .cse5 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse4 (and .cse1 .cse5) .cse2 (not (<= 1 |old(~waterLevel~0)|))))) [2022-07-19 17:25:41,634 INFO L899 garLoopResultBuilder]: For program point L532(lines 532 538) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 114 133) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 541) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L895 garLoopResultBuilder]: At program point L528-1(lines 520 544) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|)) (.cse3 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (= ~waterLevel~0 ~systemActive~0)) .cse4 (not (= |old(~waterLevel~0)| ~systemActive~0))) (or .cse0 .cse4 (= |old(~waterLevel~0)| ~waterLevel~0) .cse5) (let ((.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse4 (and .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 .cse6) (and (<= 2 ~waterLevel~0) .cse2 .cse3 .cse6) .cse5)))) [2022-07-19 17:25:41,634 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L895 garLoopResultBuilder]: At program point L269(lines 264 272) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= |old(~waterLevel~0)| ~systemActive~0))))) [2022-07-19 17:25:41,634 INFO L895 garLoopResultBuilder]: At program point L492(lines 487 495) the Hoare annotation is: (let ((.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse1 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (let ((.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (and (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse3 (<= 1 ~waterLevel~0) .cse1 .cse2) .cse4)) (or .cse5 .cse0 .cse6 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse0 (and .cse3 .cse1 .cse6) (not (<= 1 |old(~waterLevel~0)|))))) [2022-07-19 17:25:41,634 INFO L899 garLoopResultBuilder]: For program point L203(lines 203 211) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 216) no Hoare annotation was computed. [2022-07-19 17:25:41,634 INFO L895 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (= |old(~waterLevel~0)| ~systemActive~0))))) [2022-07-19 17:25:41,635 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 111 134) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 111 134) no Hoare annotation was computed. [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point L423(lines 423 427) no Hoare annotation was computed. [2022-07-19 17:25:41,635 INFO L895 garLoopResultBuilder]: At program point L423-2(lines 419 430) the Hoare annotation is: (let ((.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| ~systemActive~0))))) [2022-07-19 17:25:41,635 INFO L895 garLoopResultBuilder]: At program point L407(lines 360 408) the Hoare annotation is: false [2022-07-19 17:25:41,635 INFO L902 garLoopResultBuilder]: At program point L981(lines 974 983) the Hoare annotation is: true [2022-07-19 17:25:41,635 INFO L895 garLoopResultBuilder]: At program point L77(lines 73 79) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 ~systemActive~0)) [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point L362(lines 361 406) no Hoare annotation was computed. [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 402) no Hoare annotation was computed. [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point L994(lines 994 1001) no Hoare annotation was computed. [2022-07-19 17:25:41,635 INFO L899 garLoopResultBuilder]: For program point L994-2(lines 994 1001) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L895 garLoopResultBuilder]: At program point L383(line 383) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L895 garLoopResultBuilder]: At program point L404(lines 361 406) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 377) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point L371-1(lines 371 377) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 367) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L902 garLoopResultBuilder]: At program point L1003(lines 984 1006) the Hoare annotation is: true [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point L397(lines 397 401) no Hoare annotation was computed. [2022-07-19 17:25:41,636 INFO L895 garLoopResultBuilder]: At program point L971(lines 967 973) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 ~systemActive~0)) [2022-07-19 17:25:41,636 INFO L895 garLoopResultBuilder]: At program point L397-2(lines 391 402) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-07-19 17:25:41,636 INFO L899 garLoopResultBuilder]: For program point L381(lines 381 387) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point L92(lines 87 95) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 ~systemActive~0)) [2022-07-19 17:25:41,637 INFO L899 garLoopResultBuilder]: For program point L381-1(lines 381 387) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L902 garLoopResultBuilder]: At program point L410(lines 351 414) the Hoare annotation is: true [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point L373(line 373) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point L84(lines 80 86) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 ~systemActive~0)) [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point L225(lines 220 227) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (not (= ~waterLevel~0 ~systemActive~0)) (not (<= ~waterLevel~0 1))) [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 143 167) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (= 1 ~systemActive~0)) (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (not (= ~waterLevel~0 ~systemActive~0)) (not (<= ~waterLevel~0 1))))) [2022-07-19 17:25:41,637 INFO L899 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point L157(line 157) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (and .cse0 (<= 2 ~waterLevel~0) .cse1) (not (<= 1 ~waterLevel~0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 .cse1 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1|)))) [2022-07-19 17:25:41,637 INFO L899 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L899 garLoopResultBuilder]: For program point L151(lines 151 159) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L899 garLoopResultBuilder]: For program point L500(lines 500 506) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L899 garLoopResultBuilder]: For program point L147(lines 147 164) no Hoare annotation was computed. [2022-07-19 17:25:41,637 INFO L895 garLoopResultBuilder]: At program point L162(line 162) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 143 167) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 143 167) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point L505(lines 496 509) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 ~waterLevel~0)) (not (<= ~waterLevel~0 1)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse2)) (or .cse0 .cse2 .cse1 (not (<= 2 ~waterLevel~0))))) [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 241) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (<= 2 ~waterLevel~0))) (or .cse0 (not (<= 1 ~waterLevel~0)) (not (= ~waterLevel~0 ~systemActive~0)) (not (<= ~waterLevel~0 1))))) [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point L235-2(lines 228 244) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (not (= ~waterLevel~0 ~systemActive~0)) (not (<= ~waterLevel~0 1))) [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point L233-1(line 233) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point L324(lines 309 327) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0 (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~4#1|) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~0#1| 0)))) [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 431 442) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 431 442) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (<= |old(~waterLevel~0)| 1)) (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) (= ~waterLevel~0 ~systemActive~0)) (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))))) [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point L435-1(lines 431 442) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point L188(line 188) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) [2022-07-19 17:25:41,638 INFO L899 garLoopResultBuilder]: For program point L188-1(lines 169 193) no Hoare annotation was computed. [2022-07-19 17:25:41,638 INFO L895 garLoopResultBuilder]: At program point L343(lines 328 346) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~1#1|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 341) no Hoare annotation was computed. [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point L337-2(lines 337 341) no Hoare annotation was computed. [2022-07-19 17:25:41,639 INFO L895 garLoopResultBuilder]: At program point L515(lines 510 518) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:25:41,639 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-19 17:25:41,639 INFO L895 garLoopResultBuilder]: At program point L179(line 179) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~5#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~1#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~1#1|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point L177(lines 177 185) no Hoare annotation was computed. [2022-07-19 17:25:41,639 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 169 193) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point L173(lines 173 190) no Hoare annotation was computed. [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 169 193) no Hoare annotation was computed. [2022-07-19 17:25:41,639 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 253 263) the Hoare annotation is: true [2022-07-19 17:25:41,639 INFO L902 garLoopResultBuilder]: At program point L460(lines 455 463) the Hoare annotation is: true [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 253 263) no Hoare annotation was computed. [2022-07-19 17:25:41,639 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 253 263) no Hoare annotation was computed. [2022-07-19 17:25:41,642 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:25:41,644 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:25:41,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:25:41 BoogieIcfgContainer [2022-07-19 17:25:41,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:25:41,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:25:41,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:25:41,665 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:25:41,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:25:31" (3/4) ... [2022-07-19 17:25:41,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-19 17:25:41,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-07-19 17:25:41,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-07-19 17:25:41,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-07-19 17:25:41,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-07-19 17:25:41,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-07-19 17:25:41,674 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-07-19 17:25:41,675 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-07-19 17:25:41,675 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-07-19 17:25:41,675 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-07-19 17:25:41,682 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2022-07-19 17:25:41,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-07-19 17:25:41,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-19 17:25:41,683 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-19 17:25:41,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-19 17:25:41,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:25:41,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-19 17:25:41,706 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) [2022-07-19 17:25:41,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && waterLevel <= \old(waterLevel)) || ((pumpRunning == 0 && 1 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) [2022-07-19 17:25:41,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(1 == systemActive) || ((2 <= waterLevel && 1 <= \result) && waterLevel <= \old(waterLevel))) || (((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result) && waterLevel <= \old(waterLevel))) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) [2022-07-19 17:25:41,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= \result) && waterLevel == systemActive)) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || ((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && waterLevel <= \old(waterLevel))) || (((2 <= waterLevel && 1 <= tmp) && 1 <= \result) && waterLevel <= \old(waterLevel))) || !(2 <= \old(waterLevel))) [2022-07-19 17:25:41,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2022-07-19 17:25:41,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(1 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) [2022-07-19 17:25:41,708 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || !(waterLevel == systemActive)) || !(waterLevel <= 1) [2022-07-19 17:25:41,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(waterLevel <= 1)) || (1 <= \result && pumpRunning == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) [2022-07-19 17:25:41,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || !(waterLevel == systemActive)) || !(waterLevel <= 1) [2022-07-19 17:25:41,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && 1 <= \result) && \result == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2022-07-19 17:25:41,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(1 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) [2022-07-19 17:25:41,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((((1 <= \result && pumpRunning == 0) && 1 <= tmp) && \result == 0) && tmp___0 == 0) [2022-07-19 17:25:41,750 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:25:41,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:25:41,750 INFO L158 Benchmark]: Toolchain (without parser) took 10814.82ms. Allocated memory was 88.1MB in the beginning and 188.7MB in the end (delta: 100.7MB). Free memory was 50.1MB in the beginning and 58.0MB in the end (delta: -7.9MB). Peak memory consumption was 93.9MB. Max. memory is 16.1GB. [2022-07-19 17:25:41,751 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:25:41,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.01ms. Allocated memory is still 88.1MB. Free memory was 49.9MB in the beginning and 53.5MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:25:41,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.91ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 51.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 17:25:41,751 INFO L158 Benchmark]: Boogie Preprocessor took 47.82ms. Allocated memory is still 88.1MB. Free memory was 51.0MB in the beginning and 49.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:25:41,752 INFO L158 Benchmark]: RCFGBuilder took 476.71ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.1MB in the beginning and 80.5MB in the end (delta: -31.4MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-07-19 17:25:41,752 INFO L158 Benchmark]: TraceAbstraction took 9748.02ms. Allocated memory was 107.0MB in the beginning and 188.7MB in the end (delta: 81.8MB). Free memory was 80.5MB in the beginning and 63.2MB in the end (delta: 17.3MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. [2022-07-19 17:25:41,752 INFO L158 Benchmark]: Witness Printer took 84.76ms. Allocated memory is still 188.7MB. Free memory was 63.2MB in the beginning and 58.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-07-19 17:25:41,754 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 88.1MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.01ms. Allocated memory is still 88.1MB. Free memory was 49.9MB in the beginning and 53.5MB in the end (delta: -3.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.91ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 51.0MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.82ms. Allocated memory is still 88.1MB. Free memory was 51.0MB in the beginning and 49.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 476.71ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 49.1MB in the beginning and 80.5MB in the end (delta: -31.4MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 9748.02ms. Allocated memory was 107.0MB in the beginning and 188.7MB in the end (delta: 81.8MB). Free memory was 80.5MB in the beginning and 63.2MB in the end (delta: 17.3MB). Peak memory consumption was 108.1MB. Max. memory is 16.1GB. * Witness Printer took 84.76ms. Allocated memory is still 188.7MB. Free memory was 63.2MB in the beginning and 58.0MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: 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 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2174 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2135 mSDsluCounter, 4198 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2748 mSDsCounter, 725 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2699 IncrementalHoareTripleChecker+Invalid, 3424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 725 mSolverCounterUnsat, 1450 mSDtfsCounter, 2699 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 931 GetRequests, 793 SyntacticMatches, 10 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=831occurred in iteration=10, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 350 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 48 LocationsWithAnnotation, 2039 PreInvPairs, 2159 NumberOfFragments, 1101 HoareAnnotationTreeSize, 2039 FomulaSimplifications, 4753 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 48 FomulaSimplificationsInter, 11618 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1380 NumberOfCodeBlocks, 1380 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1464 ConstructedInterpolants, 0 QuantifiedInterpolants, 2639 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2267 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 621/696 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: 80]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == systemActive - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && waterLevel <= \old(waterLevel)) || ((pumpRunning == 0 && 1 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 984]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || ((((pumpRunning == \old(pumpRunning) && tmp == 0) && 1 <= \result) && \result == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 913]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) && waterLevel <= \old(waterLevel))) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || !(waterLevel <= 1)) || (1 <= \result && pumpRunning == 0)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((((1 <= \result && pumpRunning == 0) && 1 <= tmp) && \result == 0) && tmp___0 == 0) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || !(waterLevel == systemActive)) || !(waterLevel <= 1) - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == systemActive - InvariantResult [Line: 967]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == systemActive - InvariantResult [Line: 974]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 520]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= \result) && waterLevel == systemActive)) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && (((!(1 == systemActive) || ((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && waterLevel <= \old(waterLevel))) || (((2 <= waterLevel && 1 <= tmp) && 1 <= \result) && waterLevel <= \old(waterLevel))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == systemActive - InvariantResult [Line: 487]: Loop Invariant Derived loop invariant: ((((!(1 == systemActive) || ((2 <= waterLevel && 1 <= \result) && waterLevel <= \old(waterLevel))) || (((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result) && waterLevel <= \old(waterLevel))) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (!(1 == systemActive) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) == systemActive)) - InvariantResult [Line: 360]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || !(waterLevel == systemActive)) || !(waterLevel <= 1) - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 510]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 923]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-07-19 17:25:41,797 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE