./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product36.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 dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:23:02,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:23:02,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:23:02,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:23:02,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:23:02,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:23:02,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:23:02,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:23:02,677 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:23:02,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:23:02,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:23:02,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:23:02,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:23:02,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:23:02,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:23:02,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:23:02,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:23:02,691 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:23:02,694 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:23:02,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:23:02,715 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:23:02,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:23:02,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:23:02,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:23:02,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:23:02,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:23:02,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:23:02,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:23:02,720 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:23:02,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:23:02,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:23:02,721 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:23:02,721 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:23:02,722 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:23:02,722 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:23:02,723 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:23:02,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:23:02,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:23:02,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:23:02,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:23:02,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:23:02,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:23:02,729 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:23:02,763 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:23:02,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:23:02,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:23:02,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:23:02,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:23:02,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:23:02,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:23:02,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:23:02,777 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:23:02,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:23:02,778 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:23:02,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:23:02,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:23:02,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:23:02,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:23:02,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:23:02,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:23:02,779 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:23:02,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:23:02,780 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:23:02,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:23:02,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:23:02,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:23:02,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:23:02,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:02,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:23:02,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:23:02,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dae9a870dcbd894d53325794bcd1e36e0da0523a0c6f117be41bebebda51818a [2022-07-19 17:23:02,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:23:02,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:23:03,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:23:03,001 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:23:03,002 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:23:03,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2022-07-19 17:23:03,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eda964f9/55b4353a7d974c149df8c54faa95f80b/FLAG71c851975 [2022-07-19 17:23:03,419 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:23:03,419 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c [2022-07-19 17:23:03,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eda964f9/55b4353a7d974c149df8c54faa95f80b/FLAG71c851975 [2022-07-19 17:23:03,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9eda964f9/55b4353a7d974c149df8c54faa95f80b [2022-07-19 17:23:03,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:23:03,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:23:03,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:03,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:23:03,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:23:03,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd1c50c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03, skipping insertion in model container [2022-07-19 17:23:03,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,480 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:23:03,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:23:03,735 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2022-07-19 17:23:03,838 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:03,844 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:23:03,856 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product36.cil.c[1605,1618] [2022-07-19 17:23:03,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:23:03,908 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:23:03,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03 WrapperNode [2022-07-19 17:23:03,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:23:03,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:03,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:23:03,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:23:03,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,965 INFO L137 Inliner]: procedures = 54, calls = 152, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 227 [2022-07-19 17:23:03,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:23:03,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:23:03,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:23:03,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:23:03,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:23:03,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:23:03,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:23:03,986 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:23:03,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (1/1) ... [2022-07-19 17:23:03,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:23:04,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:23:04,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:23:04,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:23:04,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:23:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-07-19 17:23:04,071 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-07-19 17:23:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-07-19 17:23:04,071 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-07-19 17:23:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-07-19 17:23:04,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-07-19 17:23:04,071 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-07-19 17:23:04,072 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-07-19 17:23:04,072 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-07-19 17:23:04,072 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-07-19 17:23:04,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:23:04,072 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-07-19 17:23:04,072 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-07-19 17:23:04,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:23:04,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:23:04,158 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:23:04,159 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:23:04,435 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:23:04,440 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:23:04,440 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-19 17:23:04,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:04 BoogieIcfgContainer [2022-07-19 17:23:04,442 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:23:04,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:23:04,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:23:04,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:23:04,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:23:03" (1/3) ... [2022-07-19 17:23:04,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5eef4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:04, skipping insertion in model container [2022-07-19 17:23:04,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:23:03" (2/3) ... [2022-07-19 17:23:04,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5eef4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:23:04, skipping insertion in model container [2022-07-19 17:23:04,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:04" (3/3) ... [2022-07-19 17:23:04,456 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36.cil.c [2022-07-19 17:23:04,468 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:23:04,468 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:23:04,512 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:23:04,516 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@92b17e8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4e83e4bd [2022-07-19 17:23:04,516 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:23:04,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-07-19 17:23:04,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-07-19 17:23:04,524 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:04,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:04,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:04,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:04,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1839487273, now seen corresponding path program 1 times [2022-07-19 17:23:04,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:04,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768616371] [2022-07-19 17:23:04,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:04,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:04,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 17:23:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:04,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:04,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768616371] [2022-07-19 17:23:04,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768616371] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:04,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:04,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-19 17:23:04,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474460281] [2022-07-19 17:23:04,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:04,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-19 17:23:04,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:04,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-19 17:23:04,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:04,718 INFO L87 Difference]: Start difference. First operand has 79 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:04,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:04,753 INFO L93 Difference]: Finished difference Result 150 states and 203 transitions. [2022-07-19 17:23:04,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-19 17:23:04,754 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-07-19 17:23:04,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:04,761 INFO L225 Difference]: With dead ends: 150 [2022-07-19 17:23:04,762 INFO L226 Difference]: Without dead ends: 70 [2022-07-19 17:23:04,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-19 17:23:04,767 INFO L413 NwaCegarLoop]: 98 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, 98 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:04,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-07-19 17:23:04,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-07-19 17:23:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-07-19 17:23:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2022-07-19 17:23:04,794 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 23 [2022-07-19 17:23:04,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:04,794 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2022-07-19 17:23:04,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:04,795 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2022-07-19 17:23:04,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-07-19 17:23:04,796 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:04,796 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 17:23:04,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:23:04,796 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:04,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:04,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1995101318, now seen corresponding path program 1 times [2022-07-19 17:23:04,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:04,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987202695] [2022-07-19 17:23:04,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:04,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:04,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 17:23:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:04,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:04,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:04,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987202695] [2022-07-19 17:23:04,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987202695] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:04,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:04,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:04,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13714339] [2022-07-19 17:23:04,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:04,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:04,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:04,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:04,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:04,849 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:04,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:04,858 INFO L93 Difference]: Finished difference Result 101 states and 128 transitions. [2022-07-19 17:23:04,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:04,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-07-19 17:23:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:04,859 INFO L225 Difference]: With dead ends: 101 [2022-07-19 17:23:04,859 INFO L226 Difference]: Without dead ends: 61 [2022-07-19 17:23:04,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:04,861 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 18 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:04,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:04,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-07-19 17:23:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-07-19 17:23:04,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 17:23:04,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2022-07-19 17:23:04,877 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 24 [2022-07-19 17:23:04,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:04,877 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2022-07-19 17:23:04,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:04,877 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2022-07-19 17:23:04,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-19 17:23:04,878 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:04,878 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] [2022-07-19 17:23:04,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:23:04,879 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:04,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:04,879 INFO L85 PathProgramCache]: Analyzing trace with hash 613473394, now seen corresponding path program 1 times [2022-07-19 17:23:04,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:04,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783635705] [2022-07-19 17:23:04,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:04,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:04,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 17:23:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:04,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:04,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:04,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783635705] [2022-07-19 17:23:04,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783635705] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:04,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:04,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:23:04,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601410982] [2022-07-19 17:23:04,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:04,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:23:04,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:04,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:23:04,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:23:04,966 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:05,042 INFO L93 Difference]: Finished difference Result 154 states and 199 transitions. [2022-07-19 17:23:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:05,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2022-07-19 17:23:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:05,043 INFO L225 Difference]: With dead ends: 154 [2022-07-19 17:23:05,044 INFO L226 Difference]: Without dead ends: 100 [2022-07-19 17:23:05,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:23:05,046 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 145 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:05,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 264 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:05,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2022-07-19 17:23:05,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 95. [2022-07-19 17:23:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 75 states have (on average 1.3466666666666667) internal successors, (101), 82 states have internal predecessors, (101), 10 states have call successors, (10), 9 states have call predecessors, (10), 9 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-07-19 17:23:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2022-07-19 17:23:05,061 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 29 [2022-07-19 17:23:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:05,062 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2022-07-19 17:23:05,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2022-07-19 17:23:05,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-07-19 17:23:05,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:05,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:05,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:23:05,066 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:05,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:05,066 INFO L85 PathProgramCache]: Analyzing trace with hash 2110247573, now seen corresponding path program 1 times [2022-07-19 17:23:05,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:05,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753110177] [2022-07-19 17:23:05,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:05,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-19 17:23:05,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:05,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:05,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753110177] [2022-07-19 17:23:05,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753110177] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:05,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:05,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:23:05,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176585971] [2022-07-19 17:23:05,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:05,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:23:05,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:05,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:23:05,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:23:05,155 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:05,218 INFO L93 Difference]: Finished difference Result 228 states and 302 transitions. [2022-07-19 17:23:05,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:05,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-07-19 17:23:05,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:05,221 INFO L225 Difference]: With dead ends: 228 [2022-07-19 17:23:05,221 INFO L226 Difference]: Without dead ends: 140 [2022-07-19 17:23:05,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:23:05,223 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 50 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:05,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 296 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:05,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2022-07-19 17:23:05,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 131. [2022-07-19 17:23:05,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 102 states have (on average 1.2941176470588236) internal successors, (132), 110 states have internal predecessors, (132), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-07-19 17:23:05,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 164 transitions. [2022-07-19 17:23:05,241 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 164 transitions. Word has length 32 [2022-07-19 17:23:05,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:05,242 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 164 transitions. [2022-07-19 17:23:05,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 164 transitions. [2022-07-19 17:23:05,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 17:23:05,244 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:05,244 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] [2022-07-19 17:23:05,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:23:05,244 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:05,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:05,245 INFO L85 PathProgramCache]: Analyzing trace with hash -304840246, now seen corresponding path program 1 times [2022-07-19 17:23:05,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:05,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440625260] [2022-07-19 17:23:05,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:05,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:05,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 17:23:05,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:05,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:05,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440625260] [2022-07-19 17:23:05,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440625260] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:05,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:05,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:23:05,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009976798] [2022-07-19 17:23:05,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:05,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:23:05,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:05,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:23:05,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:23:05,295 INFO L87 Difference]: Start difference. First operand 131 states and 164 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:05,331 INFO L93 Difference]: Finished difference Result 269 states and 344 transitions. [2022-07-19 17:23:05,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:23:05,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-19 17:23:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:05,333 INFO L225 Difference]: With dead ends: 269 [2022-07-19 17:23:05,333 INFO L226 Difference]: Without dead ends: 145 [2022-07-19 17:23:05,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:23:05,334 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 33 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:05,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 349 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:05,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-07-19 17:23:05,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 134. [2022-07-19 17:23:05,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 105 states have (on average 1.2857142857142858) internal successors, (135), 113 states have internal predecessors, (135), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-07-19 17:23:05,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 167 transitions. [2022-07-19 17:23:05,344 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 167 transitions. Word has length 38 [2022-07-19 17:23:05,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:05,344 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 167 transitions. [2022-07-19 17:23:05,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 167 transitions. [2022-07-19 17:23:05,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 17:23:05,345 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:05,346 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] [2022-07-19 17:23:05,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:23:05,346 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:05,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:05,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1325908600, now seen corresponding path program 1 times [2022-07-19 17:23:05,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:05,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883666940] [2022-07-19 17:23:05,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:05,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 17:23:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:05,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:05,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883666940] [2022-07-19 17:23:05,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883666940] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:05,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:05,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:23:05,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155227846] [2022-07-19 17:23:05,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:05,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:23:05,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:05,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:23:05,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:23:05,383 INFO L87 Difference]: Start difference. First operand 134 states and 167 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:05,414 INFO L93 Difference]: Finished difference Result 288 states and 371 transitions. [2022-07-19 17:23:05,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:23:05,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-19 17:23:05,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:05,416 INFO L225 Difference]: With dead ends: 288 [2022-07-19 17:23:05,416 INFO L226 Difference]: Without dead ends: 161 [2022-07-19 17:23:05,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:23:05,417 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 80 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:05,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 382 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2022-07-19 17:23:05,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 136. [2022-07-19 17:23:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 107 states have (on average 1.280373831775701) internal successors, (137), 115 states have internal predecessors, (137), 14 states have call successors, (14), 14 states have call predecessors, (14), 14 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2022-07-19 17:23:05,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 169 transitions. [2022-07-19 17:23:05,449 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 169 transitions. Word has length 38 [2022-07-19 17:23:05,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:05,449 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 169 transitions. [2022-07-19 17:23:05,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,450 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 169 transitions. [2022-07-19 17:23:05,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 17:23:05,453 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:05,454 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] [2022-07-19 17:23:05,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:23:05,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:05,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:05,455 INFO L85 PathProgramCache]: Analyzing trace with hash 974913990, now seen corresponding path program 1 times [2022-07-19 17:23:05,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:05,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009935466] [2022-07-19 17:23:05,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:05,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-19 17:23:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:05,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:05,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009935466] [2022-07-19 17:23:05,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009935466] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:05,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:05,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-19 17:23:05,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437158930] [2022-07-19 17:23:05,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:05,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-19 17:23:05,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:05,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-19 17:23:05,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:05,501 INFO L87 Difference]: Start difference. First operand 136 states and 169 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:05,514 INFO L93 Difference]: Finished difference Result 340 states and 431 transitions. [2022-07-19 17:23:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-19 17:23:05,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-07-19 17:23:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:05,516 INFO L225 Difference]: With dead ends: 340 [2022-07-19 17:23:05,516 INFO L226 Difference]: Without dead ends: 211 [2022-07-19 17:23:05,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-19 17:23:05,517 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 38 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:05,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 145 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 17:23:05,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-07-19 17:23:05,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-07-19 17:23:05,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 166 states have (on average 1.2590361445783131) internal successors, (209), 176 states have internal predecessors, (209), 23 states have call successors, (23), 23 states have call predecessors, (23), 21 states have return successors, (28), 21 states have call predecessors, (28), 23 states have call successors, (28) [2022-07-19 17:23:05,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 260 transitions. [2022-07-19 17:23:05,530 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 260 transitions. Word has length 38 [2022-07-19 17:23:05,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:05,530 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 260 transitions. [2022-07-19 17:23:05,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-07-19 17:23:05,531 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 260 transitions. [2022-07-19 17:23:05,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-19 17:23:05,531 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:05,532 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] [2022-07-19 17:23:05,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:23:05,532 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:05,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:05,532 INFO L85 PathProgramCache]: Analyzing trace with hash -457608212, now seen corresponding path program 1 times [2022-07-19 17:23:05,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:05,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759844512] [2022-07-19 17:23:05,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:05,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:05,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-19 17:23:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-19 17:23:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:23:05,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:23:05,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:23:05,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759844512] [2022-07-19 17:23:05,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759844512] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:23:05,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:23:05,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:23:05,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774204539] [2022-07-19 17:23:05,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:23:05,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:23:05,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:23:05,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:23:05,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:23:05,602 INFO L87 Difference]: Start difference. First operand 211 states and 260 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:05,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:23:05,787 INFO L93 Difference]: Finished difference Result 712 states and 904 transitions. [2022-07-19 17:23:05,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-19 17:23:05,787 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2022-07-19 17:23:05,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:23:05,790 INFO L225 Difference]: With dead ends: 712 [2022-07-19 17:23:05,791 INFO L226 Difference]: Without dead ends: 508 [2022-07-19 17:23:05,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2022-07-19 17:23:05,792 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 115 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:23:05,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 375 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-19 17:23:05,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-07-19 17:23:05,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 481. [2022-07-19 17:23:05,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 376 states have (on average 1.2287234042553192) internal successors, (462), 405 states have internal predecessors, (462), 54 states have call successors, (54), 46 states have call predecessors, (54), 50 states have return successors, (77), 50 states have call predecessors, (77), 54 states have call successors, (77) [2022-07-19 17:23:05,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 593 transitions. [2022-07-19 17:23:05,815 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 593 transitions. Word has length 42 [2022-07-19 17:23:05,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:23:05,816 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 593 transitions. [2022-07-19 17:23:05,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-07-19 17:23:05,816 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 593 transitions. [2022-07-19 17:23:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-07-19 17:23:05,817 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:23:05,817 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] [2022-07-19 17:23:05,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:23:05,818 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:23:05,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:23:05,818 INFO L85 PathProgramCache]: Analyzing trace with hash -212622224, now seen corresponding path program 1 times [2022-07-19 17:23:05,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:23:05,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988877730] [2022-07-19 17:23:05,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:23:05,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:23:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:23:05,829 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-19 17:23:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-19 17:23:05,863 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-19 17:23:05,863 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-19 17:23:05,864 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-19 17:23:05,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:23:05,867 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:23:05,869 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-19 17:23:05,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 05:23:05 BoogieIcfgContainer [2022-07-19 17:23:05,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-19 17:23:05,896 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-19 17:23:05,896 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-19 17:23:05,896 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-19 17:23:05,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:23:04" (3/4) ... [2022-07-19 17:23:05,898 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-07-19 17:23:05,932 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-19 17:23:05,932 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-19 17:23:05,933 INFO L158 Benchmark]: Toolchain (without parser) took 2473.96ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 88.3MB in the beginning and 111.4MB in the end (delta: -23.1MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,933 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-19 17:23:05,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.21ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 90.6MB in the end (delta: -2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.68ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 87.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,934 INFO L158 Benchmark]: Boogie Preprocessor took 19.02ms. Allocated memory is still 123.7MB. Free memory was 87.8MB in the beginning and 86.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,934 INFO L158 Benchmark]: RCFGBuilder took 456.29ms. Allocated memory is still 123.7MB. Free memory was 86.4MB in the beginning and 71.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,934 INFO L158 Benchmark]: TraceAbstraction took 1452.82ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 70.3MB in the beginning and 115.6MB in the end (delta: -45.3MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,934 INFO L158 Benchmark]: Witness Printer took 36.30ms. Allocated memory is still 148.9MB. Free memory was 115.6MB in the beginning and 111.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-07-19 17:23:05,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 86.0MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.21ms. Allocated memory is still 123.7MB. Free memory was 88.3MB in the beginning and 90.6MB in the end (delta: -2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.68ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 87.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.02ms. Allocated memory is still 123.7MB. Free memory was 87.8MB in the beginning and 86.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 456.29ms. Allocated memory is still 123.7MB. Free memory was 86.4MB in the beginning and 71.0MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1452.82ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 70.3MB in the beginning and 115.6MB in the end (delta: -45.3MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. * Witness Printer took 36.30ms. Allocated memory is still 148.9MB. Free memory was 115.6MB in the beginning and 111.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 54]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L249] int waterLevel = 1; [L250] int methaneLevelCritical = 0; [L620] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L843] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] int retValue_acc ; [L917] int tmp ; [L921] FCALL select_helpers() [L922] FCALL select_features() [L923] CALL, EXPR valid_product() [L442] int retValue_acc ; [L445] retValue_acc = 1 [L446] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L923] RET, EXPR valid_product() [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L927] FCALL setup() [L928] CALL runTest() [L910] CALL test() [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L354] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L356] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L362] tmp = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L366] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L267] COND TRUE waterLevel < 2 [L268] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L366] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L376] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L279] COND FALSE !(\read(methaneLevelCritical)) [L282] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L376] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND TRUE \read(tmp___2) [L386] CALL startSystem() [L241] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L386] RET startSystem() [L401] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L78] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L107] int tmp ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L110] COND TRUE ! pumpRunning [L112] CALL, EXPR isHighWaterLevel() [L204] int retValue_acc ; [L205] int tmp ; [L206] int tmp___0 ; [L210] CALL, EXPR isHighWaterSensorDry() [L329] int retValue_acc ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L332] COND FALSE !(waterLevel < 2) [L336] retValue_acc = 0 [L337] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L210] RET, EXPR isHighWaterSensorDry() [L210] tmp = isHighWaterSensorDry() [L212] COND FALSE !(\read(tmp)) [L215] tmp___0 = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L217] retValue_acc = tmp___0 [L218] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L112] RET, EXPR isHighWaterLevel() [L112] tmp = isHighWaterLevel() [L114] COND TRUE \read(tmp) [L116] CALL activatePump() [L135] pumpRunning = 1 VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L116] RET activatePump() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification1_spec__1() [L818] int tmp ; [L819] int tmp___0 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L288] int retValue_acc ; [L291] retValue_acc = methaneLevelCritical [L292] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L823] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L823] tmp = isMethaneLevelCritical() [L825] COND TRUE \read(tmp) [L827] CALL, EXPR isPumpRunning() [L159] int retValue_acc ; [L162] retValue_acc = pumpRunning [L163] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L827] RET, EXPR isPumpRunning() [L827] tmp___0 = isPumpRunning() [L829] COND TRUE \read(tmp___0) [L831] CALL __automaton_fail() [L54] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 494 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 479 mSDsluCounter, 2039 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1344 mSDsCounter, 77 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 224 IncrementalHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 77 mSolverCounterUnsat, 695 mSDtfsCounter, 224 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=481occurred in iteration=8, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 77 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 310 NumberOfCodeBlocks, 310 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 256 ConstructedInterpolants, 0 QuantifiedInterpolants, 586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-07-19 17:23:05,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE