./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --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 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:03:10,297 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:03:10,362 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:03:10,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:03:10,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:03:10,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:03:10,395 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:03:10,395 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:03:10,395 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:03:10,395 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:03:10,396 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:03:10,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:03:10,396 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:03:10,396 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:03:10,397 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:03:10,397 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:03:10,397 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:03:10,397 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:03:10,397 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:03:10,397 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:03:10,398 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:03:10,398 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:03:10,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:10,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:03:10,399 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:03:10,399 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:03:10,399 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:03:10,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:10,400 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:03:10,400 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 278b945680d29bf571e1aaa42d90b0a6b141ce129976e6e0985d57b09f7f9d7c [2025-01-09 04:03:10,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:03:10,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:03:10,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:03:10,662 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:03:10,662 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:03:10,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2025-01-09 04:03:11,854 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/47c805424/7f455cab466c486b947d960e55050b16/FLAGc9bf6b7b8 [2025-01-09 04:03:12,166 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:03:12,167 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c [2025-01-09 04:03:12,180 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/47c805424/7f455cab466c486b947d960e55050b16/FLAGc9bf6b7b8 [2025-01-09 04:03:12,429 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/47c805424/7f455cab466c486b947d960e55050b16 [2025-01-09 04:03:12,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:03:12,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:03:12,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:03:12,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:03:12,437 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:03:12,438 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@535914c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12, skipping insertion in model container [2025-01-09 04:03:12,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,464 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:03:12,613 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2025-01-09 04:03:12,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:03:12,693 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:03:12,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [261] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [329] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [433] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [442] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [543] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [578] [2025-01-09 04:03:12,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [944] [2025-01-09 04:03:12,720 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product49.cil.c[6886,6899] [2025-01-09 04:03:12,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:03:12,782 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:03:12,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12 WrapperNode [2025-01-09 04:03:12,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:03:12,785 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:03:12,786 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:03:12,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:03:12,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,802 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,822 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 206 [2025-01-09 04:03:12,825 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:03:12,825 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:03:12,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:03:12,826 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:03:12,832 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,849 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 04:03:12,849 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,849 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,853 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,860 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,862 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:03:12,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:03:12,863 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:03:12,863 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:03:12,864 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (1/1) ... [2025-01-09 04:03:12,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:12,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:12,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 04:03:12,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 04:03:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:03:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 04:03:12,920 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 04:03:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 04:03:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 04:03:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 04:03:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 04:03:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:03:12,921 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:03:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 04:03:12,922 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 04:03:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2025-01-09 04:03:12,922 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2025-01-09 04:03:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:03:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 04:03:12,923 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 04:03:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:03:12,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:03:12,984 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:03:12,985 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:03:13,281 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2025-01-09 04:03:13,281 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:03:13,301 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:03:13,307 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 04:03:13,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:13 BoogieIcfgContainer [2025-01-09 04:03:13,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:03:13,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:03:13,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:03:13,316 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:03:13,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:03:12" (1/3) ... [2025-01-09 04:03:13,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34833ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:03:13, skipping insertion in model container [2025-01-09 04:03:13,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:12" (2/3) ... [2025-01-09 04:03:13,321 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34833ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:03:13, skipping insertion in model container [2025-01-09 04:03:13,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:13" (3/3) ... [2025-01-09 04:03:13,322 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product49.cil.c [2025-01-09 04:03:13,346 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:03:13,351 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product49.cil.c that has 8 procedures, 90 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 04:03:13,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:03:13,442 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cc885d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:03:13,446 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:03:13,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 77 states have internal predecessors, (94), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2025-01-09 04:03:13,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2025-01-09 04:03:13,469 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:13,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:13,470 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:13,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:13,475 INFO L85 PathProgramCache]: Analyzing trace with hash 2086986664, now seen corresponding path program 1 times [2025-01-09 04:03:13,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:13,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698531406] [2025-01-09 04:03:13,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:13,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:13,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 32 statements into 1 equivalence classes. [2025-01-09 04:03:13,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 32 of 32 statements. [2025-01-09 04:03:13,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:13,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:13,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:13,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:13,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698531406] [2025-01-09 04:03:13,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698531406] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:13,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:13,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:13,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062022740] [2025-01-09 04:03:13,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:13,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:13,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:13,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:13,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:13,640 INFO L87 Difference]: Start difference. First operand has 90 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 77 states have internal predecessors, (94), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 04:03:13,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:13,661 INFO L93 Difference]: Finished difference Result 159 states and 211 transitions. [2025-01-09 04:03:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:13,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2025-01-09 04:03:13,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:13,667 INFO L225 Difference]: With dead ends: 159 [2025-01-09 04:03:13,667 INFO L226 Difference]: Without dead ends: 73 [2025-01-09 04:03:13,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:13,671 INFO L435 NwaCegarLoop]: 97 mSDtfsCounter, 12 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 179 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 [2025-01-09 04:03:13,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 179 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2025-01-09 04:03:13,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2025-01-09 04:03:13,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3333333333333333) internal successors, (76), 64 states have internal predecessors, (76), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 04:03:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2025-01-09 04:03:13,694 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 32 [2025-01-09 04:03:13,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:13,694 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2025-01-09 04:03:13,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-01-09 04:03:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2025-01-09 04:03:13,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-01-09 04:03:13,696 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:13,696 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:13,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:03:13,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:13,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash -2038120897, now seen corresponding path program 1 times [2025-01-09 04:03:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:13,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472726835] [2025-01-09 04:03:13,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:13,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-09 04:03:13,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-09 04:03:13,714 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:13,714 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:13,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:13,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472726835] [2025-01-09 04:03:13,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472726835] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:13,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:13,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:13,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850821825] [2025-01-09 04:03:13,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:13,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:13,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:13,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:13,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:13,782 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:13,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:13,794 INFO L93 Difference]: Finished difference Result 138 states and 181 transitions. [2025-01-09 04:03:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:13,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2025-01-09 04:03:13,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:13,799 INFO L225 Difference]: With dead ends: 138 [2025-01-09 04:03:13,799 INFO L226 Difference]: Without dead ends: 73 [2025-01-09 04:03:13,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:13,800 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 72 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 92 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 [2025-01-09 04:03:13,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 92 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:13,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2025-01-09 04:03:13,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2025-01-09 04:03:13,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.3157894736842106) internal successors, (75), 64 states have internal predecessors, (75), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2025-01-09 04:03:13,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2025-01-09 04:03:13,807 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 36 [2025-01-09 04:03:13,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:13,808 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2025-01-09 04:03:13,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:13,809 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2025-01-09 04:03:13,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2025-01-09 04:03:13,810 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:13,810 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:13,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:03:13,810 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:13,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:13,810 INFO L85 PathProgramCache]: Analyzing trace with hash 503647243, now seen corresponding path program 1 times [2025-01-09 04:03:13,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:13,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658196898] [2025-01-09 04:03:13,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:13,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:13,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-01-09 04:03:13,829 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-01-09 04:03:13,829 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:13,829 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:13,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:13,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658196898] [2025-01-09 04:03:13,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658196898] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:13,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:13,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:13,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856478288] [2025-01-09 04:03:13,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:13,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:13,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:13,868 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:13,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:13,868 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:13,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:13,910 INFO L93 Difference]: Finished difference Result 184 states and 241 transitions. [2025-01-09 04:03:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:13,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2025-01-09 04:03:13,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:13,914 INFO L225 Difference]: With dead ends: 184 [2025-01-09 04:03:13,914 INFO L226 Difference]: Without dead ends: 119 [2025-01-09 04:03:13,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:13,915 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 73 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:13,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 172 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:13,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2025-01-09 04:03:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2025-01-09 04:03:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 90 states have (on average 1.3) internal successors, (117), 97 states have internal predecessors, (117), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2025-01-09 04:03:13,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 149 transitions. [2025-01-09 04:03:13,942 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 149 transitions. Word has length 44 [2025-01-09 04:03:13,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:13,943 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 149 transitions. [2025-01-09 04:03:13,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:13,943 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 149 transitions. [2025-01-09 04:03:13,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 04:03:13,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:13,948 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:13,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:03:13,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:13,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:13,950 INFO L85 PathProgramCache]: Analyzing trace with hash 604822052, now seen corresponding path program 1 times [2025-01-09 04:03:13,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:13,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981080209] [2025-01-09 04:03:13,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:13,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:13,963 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 04:03:13,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 04:03:13,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:13,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:14,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:14,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:14,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981080209] [2025-01-09 04:03:14,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981080209] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:14,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:14,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:14,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295978408] [2025-01-09 04:03:14,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:14,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:14,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:14,072 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:14,072 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:14,073 INFO L87 Difference]: Start difference. First operand 117 states and 149 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 04:03:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:14,108 INFO L93 Difference]: Finished difference Result 229 states and 298 transitions. [2025-01-09 04:03:14,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:14,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2025-01-09 04:03:14,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:14,118 INFO L225 Difference]: With dead ends: 229 [2025-01-09 04:03:14,118 INFO L226 Difference]: Without dead ends: 120 [2025-01-09 04:03:14,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:14,119 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:14,119 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:14,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2025-01-09 04:03:14,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2025-01-09 04:03:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 93 states have (on average 1.2903225806451613) internal successors, (120), 100 states have internal predecessors, (120), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2025-01-09 04:03:14,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 152 transitions. [2025-01-09 04:03:14,147 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 152 transitions. Word has length 50 [2025-01-09 04:03:14,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:14,147 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 152 transitions. [2025-01-09 04:03:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 04:03:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 152 transitions. [2025-01-09 04:03:14,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 04:03:14,148 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:14,148 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:14,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:03:14,148 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:14,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:14,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1084121690, now seen corresponding path program 1 times [2025-01-09 04:03:14,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:14,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182813050] [2025-01-09 04:03:14,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:14,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:14,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 04:03:14,191 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 04:03:14,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:14,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:14,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:14,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182813050] [2025-01-09 04:03:14,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182813050] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:14,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:14,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:14,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041347968] [2025-01-09 04:03:14,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:14,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:14,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:14,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:14,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:14,380 INFO L87 Difference]: Start difference. First operand 120 states and 152 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 04:03:14,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:14,413 INFO L93 Difference]: Finished difference Result 234 states and 307 transitions. [2025-01-09 04:03:14,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:14,413 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2025-01-09 04:03:14,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:14,414 INFO L225 Difference]: With dead ends: 234 [2025-01-09 04:03:14,414 INFO L226 Difference]: Without dead ends: 122 [2025-01-09 04:03:14,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:03:14,415 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 74 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:14,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 264 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:14,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2025-01-09 04:03:14,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2025-01-09 04:03:14,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 102 states have internal predecessors, (122), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2025-01-09 04:03:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 154 transitions. [2025-01-09 04:03:14,424 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 154 transitions. Word has length 50 [2025-01-09 04:03:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:14,424 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 154 transitions. [2025-01-09 04:03:14,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2025-01-09 04:03:14,424 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 154 transitions. [2025-01-09 04:03:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2025-01-09 04:03:14,425 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:14,425 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:14,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:03:14,425 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:14,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:14,426 INFO L85 PathProgramCache]: Analyzing trace with hash -661419864, now seen corresponding path program 1 times [2025-01-09 04:03:14,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:14,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672067917] [2025-01-09 04:03:14,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:14,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:14,432 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 50 statements into 1 equivalence classes. [2025-01-09 04:03:14,436 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 50 of 50 statements. [2025-01-09 04:03:14,436 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:14,436 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:14,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:14,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:14,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672067917] [2025-01-09 04:03:14,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672067917] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:14,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:14,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:03:14,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782354745] [2025-01-09 04:03:14,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:14,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:03:14,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:14,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:03:14,490 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:03:14,490 INFO L87 Difference]: Start difference. First operand 122 states and 154 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 04:03:14,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:14,585 INFO L93 Difference]: Finished difference Result 396 states and 518 transitions. [2025-01-09 04:03:14,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:03:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50 [2025-01-09 04:03:14,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:14,587 INFO L225 Difference]: With dead ends: 396 [2025-01-09 04:03:14,587 INFO L226 Difference]: Without dead ends: 282 [2025-01-09 04:03:14,588 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:03:14,588 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 123 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:14,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 306 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:03:14,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2025-01-09 04:03:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 273. [2025-01-09 04:03:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 210 states have (on average 1.2714285714285714) internal successors, (267), 223 states have internal predecessors, (267), 33 states have call successors, (33), 28 states have call predecessors, (33), 29 states have return successors, (51), 34 states have call predecessors, (51), 33 states have call successors, (51) [2025-01-09 04:03:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 351 transitions. [2025-01-09 04:03:14,622 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 351 transitions. Word has length 50 [2025-01-09 04:03:14,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:14,623 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 351 transitions. [2025-01-09 04:03:14,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 04:03:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 351 transitions. [2025-01-09 04:03:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2025-01-09 04:03:14,624 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:14,624 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:14,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:03:14,624 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:14,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:14,625 INFO L85 PathProgramCache]: Analyzing trace with hash 497431614, now seen corresponding path program 1 times [2025-01-09 04:03:14,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:14,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821026063] [2025-01-09 04:03:14,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:14,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:14,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-01-09 04:03:14,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-01-09 04:03:14,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:14,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:14,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 04:03:14,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:14,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821026063] [2025-01-09 04:03:14,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821026063] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:14,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:14,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 04:03:14,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147881117] [2025-01-09 04:03:14,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:14,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 04:03:14,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:14,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 04:03:14,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:03:14,707 INFO L87 Difference]: Start difference. First operand 273 states and 351 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:14,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:14,919 INFO L93 Difference]: Finished difference Result 570 states and 743 transitions. [2025-01-09 04:03:14,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:03:14,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2025-01-09 04:03:14,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:14,922 INFO L225 Difference]: With dead ends: 570 [2025-01-09 04:03:14,922 INFO L226 Difference]: Without dead ends: 305 [2025-01-09 04:03:14,923 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-01-09 04:03:14,923 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 123 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:14,923 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 375 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:03:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2025-01-09 04:03:14,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 303. [2025-01-09 04:03:14,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 233 states have (on average 1.240343347639485) internal successors, (289), 246 states have internal predecessors, (289), 36 states have call successors, (36), 28 states have call predecessors, (36), 33 states have return successors, (61), 38 states have call predecessors, (61), 36 states have call successors, (61) [2025-01-09 04:03:14,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 386 transitions. [2025-01-09 04:03:14,949 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 386 transitions. Word has length 52 [2025-01-09 04:03:14,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:14,949 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 386 transitions. [2025-01-09 04:03:14,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:14,949 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 386 transitions. [2025-01-09 04:03:14,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2025-01-09 04:03:14,950 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:14,950 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:14,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 04:03:14,951 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:14,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:14,951 INFO L85 PathProgramCache]: Analyzing trace with hash 900773134, now seen corresponding path program 1 times [2025-01-09 04:03:14,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:14,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633836351] [2025-01-09 04:03:14,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:14,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:14,962 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-01-09 04:03:14,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-01-09 04:03:14,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:14,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:15,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:15,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:15,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633836351] [2025-01-09 04:03:15,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633836351] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:15,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:15,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 04:03:15,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513381507] [2025-01-09 04:03:15,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:15,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 04:03:15,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:15,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 04:03:15,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:03:15,094 INFO L87 Difference]: Start difference. First operand 303 states and 386 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:15,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:15,480 INFO L93 Difference]: Finished difference Result 861 states and 1145 transitions. [2025-01-09 04:03:15,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:03:15,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54 [2025-01-09 04:03:15,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:15,487 INFO L225 Difference]: With dead ends: 861 [2025-01-09 04:03:15,487 INFO L226 Difference]: Without dead ends: 615 [2025-01-09 04:03:15,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-01-09 04:03:15,493 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 292 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:15,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 515 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:15,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2025-01-09 04:03:15,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 545. [2025-01-09 04:03:15,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 415 states have (on average 1.2265060240963856) internal successors, (509), 441 states have internal predecessors, (509), 67 states have call successors, (67), 50 states have call predecessors, (67), 62 states have return successors, (113), 71 states have call predecessors, (113), 67 states have call successors, (113) [2025-01-09 04:03:15,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 689 transitions. [2025-01-09 04:03:15,578 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 689 transitions. Word has length 54 [2025-01-09 04:03:15,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:15,578 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 689 transitions. [2025-01-09 04:03:15,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:15,579 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 689 transitions. [2025-01-09 04:03:15,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 04:03:15,581 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:15,582 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:15,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 04:03:15,582 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:15,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:15,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1579583892, now seen corresponding path program 1 times [2025-01-09 04:03:15,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:15,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316396252] [2025-01-09 04:03:15,583 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:15,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:15,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 04:03:15,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 04:03:15,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:15,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:15,744 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-09 04:03:15,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316396252] [2025-01-09 04:03:15,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316396252] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:15,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305266305] [2025-01-09 04:03:15,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:15,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:15,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:15,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:15,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 04:03:15,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 04:03:15,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 04:03:15,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:15,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:15,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 04:03:15,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:15,976 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:03:15,977 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:16,289 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 17 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2025-01-09 04:03:16,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305266305] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:16,293 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:16,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2025-01-09 04:03:16,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106920700] [2025-01-09 04:03:16,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:16,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-09 04:03:16,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:16,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-09 04:03:16,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-01-09 04:03:16,294 INFO L87 Difference]: Start difference. First operand 545 states and 689 transitions. Second operand has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 13 states have internal predecessors, (137), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2025-01-09 04:03:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:16,890 INFO L93 Difference]: Finished difference Result 1213 states and 1601 transitions. [2025-01-09 04:03:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 04:03:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 13 states have internal predecessors, (137), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) Word has length 94 [2025-01-09 04:03:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:16,893 INFO L225 Difference]: With dead ends: 1213 [2025-01-09 04:03:16,896 INFO L226 Difference]: Without dead ends: 723 [2025-01-09 04:03:16,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 185 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2025-01-09 04:03:16,900 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 353 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:16,901 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 1009 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:16,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2025-01-09 04:03:16,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 627. [2025-01-09 04:03:16,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 470 states have (on average 1.2234042553191489) internal successors, (575), 505 states have internal predecessors, (575), 80 states have call successors, (80), 68 states have call predecessors, (80), 76 states have return successors, (116), 78 states have call predecessors, (116), 80 states have call successors, (116) [2025-01-09 04:03:16,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 771 transitions. [2025-01-09 04:03:16,959 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 771 transitions. Word has length 94 [2025-01-09 04:03:16,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:16,960 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 771 transitions. [2025-01-09 04:03:16,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 9.133333333333333) internal successors, (137), 13 states have internal predecessors, (137), 7 states have call successors, (20), 4 states have call predecessors, (20), 8 states have return successors, (18), 9 states have call predecessors, (18), 7 states have call successors, (18) [2025-01-09 04:03:16,961 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 771 transitions. [2025-01-09 04:03:16,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-01-09 04:03:16,964 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:16,964 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:16,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 04:03:17,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:17,170 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,170 INFO L85 PathProgramCache]: Analyzing trace with hash 944451150, now seen corresponding path program 1 times [2025-01-09 04:03:17,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398994180] [2025-01-09 04:03:17,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,183 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 04:03:17,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 04:03:17,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-01-09 04:03:17,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398994180] [2025-01-09 04:03:17,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398994180] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:17,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064988847] [2025-01-09 04:03:17,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:17,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,288 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:17,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:17,288 INFO L87 Difference]: Start difference. First operand 627 states and 771 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 04:03:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,360 INFO L93 Difference]: Finished difference Result 1208 states and 1502 transitions. [2025-01-09 04:03:17,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:17,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 164 [2025-01-09 04:03:17,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,365 INFO L225 Difference]: With dead ends: 1208 [2025-01-09 04:03:17,365 INFO L226 Difference]: Without dead ends: 636 [2025-01-09 04:03:17,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:17,367 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:17,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 353 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:17,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2025-01-09 04:03:17,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 636. [2025-01-09 04:03:17,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 479 states have (on average 1.2192066805845512) internal successors, (584), 514 states have internal predecessors, (584), 80 states have call successors, (80), 68 states have call predecessors, (80), 76 states have return successors, (116), 78 states have call predecessors, (116), 80 states have call successors, (116) [2025-01-09 04:03:17,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 780 transitions. [2025-01-09 04:03:17,417 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 780 transitions. Word has length 164 [2025-01-09 04:03:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,417 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 780 transitions. [2025-01-09 04:03:17,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 04:03:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 780 transitions. [2025-01-09 04:03:17,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-01-09 04:03:17,423 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,423 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 04:03:17,424 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1820470156, now seen corresponding path program 1 times [2025-01-09 04:03:17,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921958149] [2025-01-09 04:03:17,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 04:03:17,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 04:03:17,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,728 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 83 proven. 31 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-01-09 04:03:17,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921958149] [2025-01-09 04:03:17,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921958149] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:17,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836819301] [2025-01-09 04:03:17,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:17,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:17,731 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:17,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 04:03:17,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 04:03:17,836 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 04:03:17,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 04:03:17,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 132 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-09 04:03:18,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:18,739 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 73 proven. 40 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2025-01-09 04:03:18,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836819301] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:18,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:18,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2025-01-09 04:03:18,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278294450] [2025-01-09 04:03:18,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:18,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 04:03:18,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:18,741 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 04:03:18,742 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2025-01-09 04:03:18,742 INFO L87 Difference]: Start difference. First operand 636 states and 780 transitions. Second operand has 25 states, 25 states have (on average 8.32) internal successors, (208), 24 states have internal predecessors, (208), 11 states have call successors, (26), 6 states have call predecessors, (26), 10 states have return successors, (28), 10 states have call predecessors, (28), 11 states have call successors, (28) [2025-01-09 04:03:19,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:19,421 INFO L93 Difference]: Finished difference Result 1392 states and 1775 transitions. [2025-01-09 04:03:19,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 04:03:19,421 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.32) internal successors, (208), 24 states have internal predecessors, (208), 11 states have call successors, (26), 6 states have call predecessors, (26), 10 states have return successors, (28), 10 states have call predecessors, (28), 11 states have call successors, (28) Word has length 164 [2025-01-09 04:03:19,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:19,425 INFO L225 Difference]: With dead ends: 1392 [2025-01-09 04:03:19,425 INFO L226 Difference]: Without dead ends: 764 [2025-01-09 04:03:19,427 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 315 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2025-01-09 04:03:19,427 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 414 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 636 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 636 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:19,427 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 703 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 636 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 04:03:19,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2025-01-09 04:03:19,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 694. [2025-01-09 04:03:19,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 524 states have (on average 1.1946564885496183) internal successors, (626), 556 states have internal predecessors, (626), 91 states have call successors, (91), 79 states have call predecessors, (91), 78 states have return successors, (114), 81 states have call predecessors, (114), 91 states have call successors, (114) [2025-01-09 04:03:19,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 831 transitions. [2025-01-09 04:03:19,468 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 831 transitions. Word has length 164 [2025-01-09 04:03:19,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:19,468 INFO L471 AbstractCegarLoop]: Abstraction has 694 states and 831 transitions. [2025-01-09 04:03:19,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.32) internal successors, (208), 24 states have internal predecessors, (208), 11 states have call successors, (26), 6 states have call predecessors, (26), 10 states have return successors, (28), 10 states have call predecessors, (28), 11 states have call successors, (28) [2025-01-09 04:03:19,468 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 831 transitions. [2025-01-09 04:03:19,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2025-01-09 04:03:19,474 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:19,474 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:19,480 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 04:03:19,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:19,675 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:19,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:19,675 INFO L85 PathProgramCache]: Analyzing trace with hash -209324974, now seen corresponding path program 1 times [2025-01-09 04:03:19,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:19,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239435651] [2025-01-09 04:03:19,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:19,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:19,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 04:03:19,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 04:03:19,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:19,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:19,876 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 85 proven. 65 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2025-01-09 04:03:19,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:19,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239435651] [2025-01-09 04:03:19,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239435651] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:19,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945279241] [2025-01-09 04:03:19,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:19,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:19,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:19,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:19,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 04:03:19,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 180 statements into 1 equivalence classes. [2025-01-09 04:03:19,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 180 of 180 statements. [2025-01-09 04:03:19,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:19,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:19,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 04:03:19,981 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:20,115 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 172 proven. 9 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-09 04:03:20,115 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 226 backedges. 94 proven. 55 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2025-01-09 04:03:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945279241] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:20,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:20,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2025-01-09 04:03:20,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484685806] [2025-01-09 04:03:20,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:20,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 04:03:20,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:20,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 04:03:20,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2025-01-09 04:03:20,472 INFO L87 Difference]: Start difference. First operand 694 states and 831 transitions. Second operand has 23 states, 23 states have (on average 10.0) internal successors, (230), 20 states have internal predecessors, (230), 9 states have call successors, (33), 5 states have call predecessors, (33), 14 states have return successors, (33), 12 states have call predecessors, (33), 9 states have call successors, (33) [2025-01-09 04:03:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:21,017 INFO L93 Difference]: Finished difference Result 1364 states and 1656 transitions. [2025-01-09 04:03:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 04:03:21,018 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 20 states have internal predecessors, (230), 9 states have call successors, (33), 5 states have call predecessors, (33), 14 states have return successors, (33), 12 states have call predecessors, (33), 9 states have call successors, (33) Word has length 180 [2025-01-09 04:03:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:21,021 INFO L225 Difference]: With dead ends: 1364 [2025-01-09 04:03:21,021 INFO L226 Difference]: Without dead ends: 725 [2025-01-09 04:03:21,023 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 356 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 04:03:21,023 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 395 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:21,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 725 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:21,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2025-01-09 04:03:21,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 709. [2025-01-09 04:03:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 709 states, 534 states have (on average 1.1835205992509363) internal successors, (632), 566 states have internal predecessors, (632), 91 states have call successors, (91), 84 states have call predecessors, (91), 83 states have return successors, (114), 81 states have call predecessors, (114), 91 states have call successors, (114) [2025-01-09 04:03:21,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 837 transitions. [2025-01-09 04:03:21,057 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 837 transitions. Word has length 180 [2025-01-09 04:03:21,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:21,057 INFO L471 AbstractCegarLoop]: Abstraction has 709 states and 837 transitions. [2025-01-09 04:03:21,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 10.0) internal successors, (230), 20 states have internal predecessors, (230), 9 states have call successors, (33), 5 states have call predecessors, (33), 14 states have return successors, (33), 12 states have call predecessors, (33), 9 states have call successors, (33) [2025-01-09 04:03:21,057 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 837 transitions. [2025-01-09 04:03:21,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 04:03:21,059 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:21,059 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:21,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 04:03:21,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:21,264 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:21,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:21,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1388700887, now seen corresponding path program 1 times [2025-01-09 04:03:21,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:21,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285415953] [2025-01-09 04:03:21,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:21,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:21,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 04:03:21,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 04:03:21,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:21,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:21,955 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 87 proven. 57 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2025-01-09 04:03:21,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:21,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285415953] [2025-01-09 04:03:21,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285415953] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:21,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75360538] [2025-01-09 04:03:21,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:21,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:21,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:21,961 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:21,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 04:03:22,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 04:03:22,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 04:03:22,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:22,054 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:22,060 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 04:03:22,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:22,341 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 118 proven. 25 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-09 04:03:22,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 91 proven. 46 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2025-01-09 04:03:22,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75360538] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:22,837 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:22,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 13] total 22 [2025-01-09 04:03:22,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718582905] [2025-01-09 04:03:22,838 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:22,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-09 04:03:22,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:22,839 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-09 04:03:22,839 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2025-01-09 04:03:22,839 INFO L87 Difference]: Start difference. First operand 709 states and 837 transitions. Second operand has 22 states, 22 states have (on average 10.545454545454545) internal successors, (232), 21 states have internal predecessors, (232), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2025-01-09 04:03:23,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:23,497 INFO L93 Difference]: Finished difference Result 1367 states and 1642 transitions. [2025-01-09 04:03:23,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 04:03:23,498 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.545454545454545) internal successors, (232), 21 states have internal predecessors, (232), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) Word has length 181 [2025-01-09 04:03:23,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:23,503 INFO L225 Difference]: With dead ends: 1367 [2025-01-09 04:03:23,503 INFO L226 Difference]: Without dead ends: 938 [2025-01-09 04:03:23,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 356 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=404, Invalid=1002, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 04:03:23,506 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 434 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:23,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 907 Invalid, 888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 04:03:23,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2025-01-09 04:03:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 871. [2025-01-09 04:03:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 657 states have (on average 1.182648401826484) internal successors, (777), 694 states have internal predecessors, (777), 112 states have call successors, (112), 103 states have call predecessors, (112), 101 states have return successors, (137), 101 states have call predecessors, (137), 112 states have call successors, (137) [2025-01-09 04:03:23,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1026 transitions. [2025-01-09 04:03:23,564 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1026 transitions. Word has length 181 [2025-01-09 04:03:23,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:23,564 INFO L471 AbstractCegarLoop]: Abstraction has 871 states and 1026 transitions. [2025-01-09 04:03:23,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.545454545454545) internal successors, (232), 21 states have internal predecessors, (232), 14 states have call successors, (36), 8 states have call predecessors, (36), 14 states have return successors, (35), 14 states have call predecessors, (35), 14 states have call successors, (35) [2025-01-09 04:03:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1026 transitions. [2025-01-09 04:03:23,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2025-01-09 04:03:23,567 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:23,567 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:23,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 04:03:23,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 04:03:23,768 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:23,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:23,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1609862594, now seen corresponding path program 1 times [2025-01-09 04:03:23,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:23,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408432302] [2025-01-09 04:03:23,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:23,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:23,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes. [2025-01-09 04:03:23,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements. [2025-01-09 04:03:23,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:23,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:24,154 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 140 proven. 75 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2025-01-09 04:03:24,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:24,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408432302] [2025-01-09 04:03:24,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408432302] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:24,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22058766] [2025-01-09 04:03:24,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:24,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:24,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:24,159 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:24,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 04:03:24,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 230 statements into 1 equivalence classes. [2025-01-09 04:03:24,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 230 of 230 statements. [2025-01-09 04:03:24,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:24,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:24,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 656 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-09 04:03:24,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 134 proven. 87 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-01-09 04:03:24,516 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:25,077 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 87 proven. 136 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2025-01-09 04:03:25,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22058766] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:25,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:25,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 16] total 27 [2025-01-09 04:03:25,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317083316] [2025-01-09 04:03:25,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:25,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-01-09 04:03:25,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:25,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-01-09 04:03:25,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2025-01-09 04:03:25,081 INFO L87 Difference]: Start difference. First operand 871 states and 1026 transitions. Second operand has 27 states, 27 states have (on average 10.62962962962963) internal successors, (287), 26 states have internal predecessors, (287), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2025-01-09 04:03:25,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:26,000 INFO L93 Difference]: Finished difference Result 1473 states and 1761 transitions. [2025-01-09 04:03:26,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-01-09 04:03:26,000 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 10.62962962962963) internal successors, (287), 26 states have internal predecessors, (287), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) Word has length 230 [2025-01-09 04:03:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:26,002 INFO L225 Difference]: With dead ends: 1473 [2025-01-09 04:03:26,002 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 04:03:26,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 513 GetRequests, 448 SyntacticMatches, 9 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=787, Invalid=2519, Unknown=0, NotChecked=0, Total=3306 [2025-01-09 04:03:26,005 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 545 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:26,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1372 Invalid, 1490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 04:03:26,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 04:03:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 04:03:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 04:03:26,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 04:03:26,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 230 [2025-01-09 04:03:26,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:26,008 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 04:03:26,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 10.62962962962963) internal successors, (287), 26 states have internal predecessors, (287), 15 states have call successors, (46), 8 states have call predecessors, (46), 16 states have return successors, (48), 15 states have call predecessors, (48), 15 states have call successors, (48) [2025-01-09 04:03:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 04:03:26,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 04:03:26,010 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 04:03:26,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 04:03:26,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-09 04:03:26,213 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:26,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 04:03:31,113 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 04:03:31,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:03:31 BoogieIcfgContainer [2025-01-09 04:03:31,124 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 04:03:31,125 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 04:03:31,125 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 04:03:31,125 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 04:03:31,125 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:13" (3/4) ... [2025-01-09 04:03:31,127 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 04:03:31,131 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2025-01-09 04:03:31,131 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2025-01-09 04:03:31,131 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2025-01-09 04:03:31,131 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2025-01-09 04:03:31,131 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:03:31,132 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2025-01-09 04:03:31,132 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2025-01-09 04:03:31,136 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2025-01-09 04:03:31,137 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 04:03:31,138 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 04:03:31,138 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:03:31,138 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:03:31,211 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 04:03:31,212 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 04:03:31,212 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 04:03:31,212 INFO L158 Benchmark]: Toolchain (without parser) took 18779.58ms. Allocated memory was 201.3MB in the beginning and 369.1MB in the end (delta: 167.8MB). Free memory was 157.4MB in the beginning and 292.8MB in the end (delta: -135.4MB). Peak memory consumption was 27.7MB. Max. memory is 16.1GB. [2025-01-09 04:03:31,212 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 218.1MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:31,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.04ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 138.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:03:31,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.85ms. Allocated memory is still 201.3MB. Free memory was 138.6MB in the beginning and 136.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:31,213 INFO L158 Benchmark]: Boogie Preprocessor took 36.86ms. Allocated memory is still 201.3MB. Free memory was 136.6MB in the beginning and 134.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:03:31,213 INFO L158 Benchmark]: RCFGBuilder took 444.08ms. Allocated memory is still 201.3MB. Free memory was 134.7MB in the beginning and 117.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:03:31,213 INFO L158 Benchmark]: TraceAbstraction took 17815.09ms. Allocated memory was 201.3MB in the beginning and 369.1MB in the end (delta: 167.8MB). Free memory was 116.4MB in the beginning and 301.0MB in the end (delta: -184.6MB). Peak memory consumption was 169.9MB. Max. memory is 16.1GB. [2025-01-09 04:03:31,213 INFO L158 Benchmark]: Witness Printer took 87.00ms. Allocated memory is still 369.1MB. Free memory was 301.0MB in the beginning and 292.8MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:31,214 INFO L338 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 218.1MB. Free memory is still 133.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.04ms. Allocated memory is still 201.3MB. Free memory was 157.1MB in the beginning and 138.6MB in the end (delta: 18.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.85ms. Allocated memory is still 201.3MB. Free memory was 138.6MB in the beginning and 136.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.86ms. Allocated memory is still 201.3MB. Free memory was 136.6MB in the beginning and 134.7MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 444.08ms. Allocated memory is still 201.3MB. Free memory was 134.7MB in the beginning and 117.0MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17815.09ms. Allocated memory was 201.3MB in the beginning and 369.1MB in the end (delta: 167.8MB). Free memory was 116.4MB in the beginning and 301.0MB in the end (delta: -184.6MB). Peak memory consumption was 169.9MB. Max. memory is 16.1GB. * Witness Printer took 87.00ms. Allocated memory is still 369.1MB. Free memory was 301.0MB in the beginning and 292.8MB in the end (delta: 8.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 261]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [261] - GenericResultAtLocation [Line: 329]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [329] - GenericResultAtLocation [Line: 433]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [433] - GenericResultAtLocation [Line: 442]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [442] - GenericResultAtLocation [Line: 543]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [543] - GenericResultAtLocation [Line: 578]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [578] - GenericResultAtLocation [Line: 944]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [944] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 438]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2941 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2910 mSDsluCounter, 7326 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5684 mSDsCounter, 801 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4047 IncrementalHoareTripleChecker+Invalid, 4848 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 801 mSolverCounterUnsat, 1642 mSDtfsCounter, 4047 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1938 GetRequests, 1687 SyntacticMatches, 25 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1866 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=871occurred in iteration=13, InterpolantAutomatonStates: 158, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 332 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 2230 NumberOfCodeBlocks, 2230 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3055 ConstructedInterpolants, 0 QuantifiedInterpolants, 7526 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2537 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 2742/3405 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 275]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 321]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 04:03:31,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE