./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product47.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_spec1_product47.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 c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:59:42,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:59:42,955 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:59:42,962 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:59:42,963 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:59:42,987 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:59:42,988 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:59:42,988 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:59:42,989 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:59:42,989 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:59:42,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:59:42,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:59:42,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:59:42,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:59:42,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:59:42,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:59:42,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:59:42,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:59:42,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:59:42,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:59:42,993 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:59:42,993 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 -> c4da108453cefa034e9e2f20ae1a945f7f6bf5ea54205b9ec625406680c7ecea [2025-01-09 03:59:43,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:59:43,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:59:43,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:59:43,308 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:59:43,309 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:59:43,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2025-01-09 03:59:44,727 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea545c722/931f6a7ea17e4412be5684b1b4b49947/FLAGbea7e31ba [2025-01-09 03:59:45,030 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:59:45,031 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product47.cil.c [2025-01-09 03:59:45,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea545c722/931f6a7ea17e4412be5684b1b4b49947/FLAGbea7e31ba [2025-01-09 03:59:45,059 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea545c722/931f6a7ea17e4412be5684b1b4b49947 [2025-01-09 03:59:45,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:59:45,064 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:59:45,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:59:45,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:59:45,071 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:59:45,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c457ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45, skipping insertion in model container [2025-01-09 03:59:45,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,114 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:59:45,243 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_spec1_product47.cil.c[2044,2057] [2025-01-09 03:59:45,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:59:45,368 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:59:45,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2025-01-09 03:59:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] [2025-01-09 03:59:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] [2025-01-09 03:59:45,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [125] [2025-01-09 03:59:45,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [225] [2025-01-09 03:59:45,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [440] [2025-01-09 03:59:45,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [508] [2025-01-09 03:59:45,378 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [874] [2025-01-09 03:59:45,387 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_spec1_product47.cil.c[2044,2057] [2025-01-09 03:59:45,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:59:45,454 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:59:45,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45 WrapperNode [2025-01-09 03:59:45,455 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:59:45,456 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:59:45,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:59:45,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:59:45,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,487 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 21, calls inlined = 18, statements flattened = 185 [2025-01-09 03:59:45,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:59:45,488 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:59:45,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:59:45,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:59:45,499 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,501 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,523 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 03:59:45,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,524 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,527 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,528 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,531 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,533 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:59:45,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:59:45,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:59:45,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:59:45,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (1/1) ... [2025-01-09 03:59:45,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:59:45,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:59:45,571 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 03:59:45,575 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 03:59:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:59:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 03:59:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 03:59:45,595 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:59:45,595 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:59:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2025-01-09 03:59:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 03:59:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 03:59:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2025-01-09 03:59:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2025-01-09 03:59:45,596 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:59:45,596 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 03:59:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 03:59:45,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:59:45,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:59:45,671 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:59:45,673 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:59:45,918 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2025-01-09 03:59:45,918 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:59:45,927 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:59:45,927 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 03:59:45,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:59:45 BoogieIcfgContainer [2025-01-09 03:59:45,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:59:45,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:59:45,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:59:45,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:59:45,933 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:59:45" (1/3) ... [2025-01-09 03:59:45,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a33cb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:59:45, skipping insertion in model container [2025-01-09 03:59:45,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:59:45" (2/3) ... [2025-01-09 03:59:45,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a33cb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:59:45, skipping insertion in model container [2025-01-09 03:59:45,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:59:45" (3/3) ... [2025-01-09 03:59:45,935 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product47.cil.c [2025-01-09 03:59:45,946 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:59:45,948 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec1_product47.cil.c that has 10 procedures, 98 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 03:59:46,008 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:59:46,023 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;@73065252, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:59:46,024 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:59:46,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 71 states have (on average 1.352112676056338) internal successors, (96), 80 states have internal predecessors, (96), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2025-01-09 03:59:46,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-09 03:59:46,035 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:46,035 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:46,036 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:46,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:46,040 INFO L85 PathProgramCache]: Analyzing trace with hash -468875526, now seen corresponding path program 1 times [2025-01-09 03:59:46,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:46,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764461716] [2025-01-09 03:59:46,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:46,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:46,104 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 03:59:46,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 03:59:46,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:46,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:46,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:59:46,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:46,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764461716] [2025-01-09 03:59:46,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764461716] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:46,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:46,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 03:59:46,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563984742] [2025-01-09 03:59:46,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:46,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:59:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:46,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:59:46,246 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:59:46,249 INFO L87 Difference]: Start difference. First operand has 98 states, 71 states have (on average 1.352112676056338) internal successors, (96), 80 states have internal predecessors, (96), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:46,281 INFO L93 Difference]: Finished difference Result 188 states and 251 transitions. [2025-01-09 03:59:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:59:46,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2025-01-09 03:59:46,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:46,292 INFO L225 Difference]: With dead ends: 188 [2025-01-09 03:59:46,293 INFO L226 Difference]: Without dead ends: 89 [2025-01-09 03:59:46,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 03:59:46,302 INFO L435 NwaCegarLoop]: 124 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:46,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:59:46,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2025-01-09 03:59:46,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2025-01-09 03:59:46,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 64 states have (on average 1.3125) internal successors, (84), 72 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2025-01-09 03:59:46,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 115 transitions. [2025-01-09 03:59:46,349 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 115 transitions. Word has length 23 [2025-01-09 03:59:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:46,350 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 115 transitions. [2025-01-09 03:59:46,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:46,350 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2025-01-09 03:59:46,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2025-01-09 03:59:46,352 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:46,352 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:46,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 03:59:46,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:46,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:46,353 INFO L85 PathProgramCache]: Analyzing trace with hash -501276572, now seen corresponding path program 1 times [2025-01-09 03:59:46,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:46,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638014972] [2025-01-09 03:59:46,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:46,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:46,364 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-01-09 03:59:46,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-01-09 03:59:46,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:46,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:59:46,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:46,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638014972] [2025-01-09 03:59:46,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638014972] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:46,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:46,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:59:46,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567914069] [2025-01-09 03:59:46,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:46,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:59:46,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:46,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:59:46,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:59:46,469 INFO L87 Difference]: Start difference. First operand 89 states and 115 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:46,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:46,497 INFO L93 Difference]: Finished difference Result 142 states and 182 transitions. [2025-01-09 03:59:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:59:46,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2025-01-09 03:59:46,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:46,501 INFO L225 Difference]: With dead ends: 142 [2025-01-09 03:59:46,501 INFO L226 Difference]: Without dead ends: 81 [2025-01-09 03:59:46,502 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 03:59:46,504 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 16 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 186 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 03:59:46,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 186 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:59:46,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2025-01-09 03:59:46,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2025-01-09 03:59:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 67 states have internal predecessors, (78), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2025-01-09 03:59:46,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 104 transitions. [2025-01-09 03:59:46,523 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 104 transitions. Word has length 23 [2025-01-09 03:59:46,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:46,523 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 104 transitions. [2025-01-09 03:59:46,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 104 transitions. [2025-01-09 03:59:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2025-01-09 03:59:46,524 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:46,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:46,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 03:59:46,525 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:46,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash -618658534, now seen corresponding path program 1 times [2025-01-09 03:59:46,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:46,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598912689] [2025-01-09 03:59:46,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:46,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:46,541 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-01-09 03:59:46,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-01-09 03:59:46,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:46,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:59:46,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:46,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598912689] [2025-01-09 03:59:46,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598912689] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:46,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:46,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:59:46,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815194453] [2025-01-09 03:59:46,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:46,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:59:46,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:46,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:59:46,663 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:59:46,663 INFO L87 Difference]: Start difference. First operand 81 states and 104 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:46,706 INFO L93 Difference]: Finished difference Result 228 states and 298 transitions. [2025-01-09 03:59:46,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:59:46,706 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2025-01-09 03:59:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:46,708 INFO L225 Difference]: With dead ends: 228 [2025-01-09 03:59:46,708 INFO L226 Difference]: Without dead ends: 154 [2025-01-09 03:59:46,709 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 03:59:46,713 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 85 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:46,713 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 216 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:59:46,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2025-01-09 03:59:46,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 151. [2025-01-09 03:59:46,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 108 states have (on average 1.3425925925925926) internal successors, (145), 123 states have internal predecessors, (145), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2025-01-09 03:59:46,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 197 transitions. [2025-01-09 03:59:46,750 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 197 transitions. Word has length 27 [2025-01-09 03:59:46,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:46,751 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 197 transitions. [2025-01-09 03:59:46,751 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), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:46,751 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 197 transitions. [2025-01-09 03:59:46,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2025-01-09 03:59:46,754 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:46,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:46,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 03:59:46,754 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:46,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:46,755 INFO L85 PathProgramCache]: Analyzing trace with hash 532445648, now seen corresponding path program 1 times [2025-01-09 03:59:46,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:46,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667588503] [2025-01-09 03:59:46,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:46,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:46,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 31 statements into 1 equivalence classes. [2025-01-09 03:59:46,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 31 of 31 statements. [2025-01-09 03:59:46,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:46,787 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:59:46,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:46,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667588503] [2025-01-09 03:59:46,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667588503] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:46,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:46,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:59:46,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128586205] [2025-01-09 03:59:46,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:46,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:59:46,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:46,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:59:46,975 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:59:46,976 INFO L87 Difference]: Start difference. First operand 151 states and 197 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:47,086 INFO L93 Difference]: Finished difference Result 387 states and 514 transitions. [2025-01-09 03:59:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:59:47,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2025-01-09 03:59:47,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:47,089 INFO L225 Difference]: With dead ends: 387 [2025-01-09 03:59:47,089 INFO L226 Difference]: Without dead ends: 243 [2025-01-09 03:59:47,091 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 03:59:47,094 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 59 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:47,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 356 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:59:47,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2025-01-09 03:59:47,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 242. [2025-01-09 03:59:47,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 175 states have (on average 1.2971428571428572) internal successors, (227), 192 states have internal predecessors, (227), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2025-01-09 03:59:47,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 307 transitions. [2025-01-09 03:59:47,124 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 307 transitions. Word has length 31 [2025-01-09 03:59:47,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:47,124 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 307 transitions. [2025-01-09 03:59:47,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-01-09 03:59:47,125 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 307 transitions. [2025-01-09 03:59:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-09 03:59:47,126 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:47,127 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] [2025-01-09 03:59:47,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 03:59:47,127 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:47,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:47,127 INFO L85 PathProgramCache]: Analyzing trace with hash -1871031339, now seen corresponding path program 1 times [2025-01-09 03:59:47,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:47,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601084204] [2025-01-09 03:59:47,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:47,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:47,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 03:59:47,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 03:59:47,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:47,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:47,238 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 03:59:47,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:47,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601084204] [2025-01-09 03:59:47,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601084204] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:47,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:47,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:59:47,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545336020] [2025-01-09 03:59:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:47,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:59:47,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:47,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:59:47,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:59:47,242 INFO L87 Difference]: Start difference. First operand 242 states and 307 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 03:59:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:47,285 INFO L93 Difference]: Finished difference Result 483 states and 631 transitions. [2025-01-09 03:59:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:59:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2025-01-09 03:59:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:47,288 INFO L225 Difference]: With dead ends: 483 [2025-01-09 03:59:47,288 INFO L226 Difference]: Without dead ends: 248 [2025-01-09 03:59:47,289 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 03:59:47,290 INFO L435 NwaCegarLoop]: 101 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 398 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 03:59:47,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 398 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:59:47,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2025-01-09 03:59:47,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 248. [2025-01-09 03:59:47,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 181 states have (on average 1.287292817679558) internal successors, (233), 198 states have internal predecessors, (233), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2025-01-09 03:59:47,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 313 transitions. [2025-01-09 03:59:47,312 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 313 transitions. Word has length 53 [2025-01-09 03:59:47,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:47,312 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 313 transitions. [2025-01-09 03:59:47,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 03:59:47,313 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 313 transitions. [2025-01-09 03:59:47,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-09 03:59:47,314 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:47,314 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] [2025-01-09 03:59:47,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:59:47,315 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:47,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:47,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1848399085, now seen corresponding path program 1 times [2025-01-09 03:59:47,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:47,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802283861] [2025-01-09 03:59:47,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:47,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:47,327 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 03:59:47,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 03:59:47,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:47,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:47,407 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 03:59:47,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:47,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802283861] [2025-01-09 03:59:47,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802283861] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:47,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:47,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:59:47,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639920400] [2025-01-09 03:59:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:47,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:59:47,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:47,409 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:59:47,409 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:59:47,409 INFO L87 Difference]: Start difference. First operand 248 states and 313 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 03:59:47,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:47,441 INFO L93 Difference]: Finished difference Result 493 states and 641 transitions. [2025-01-09 03:59:47,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:59:47,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2025-01-09 03:59:47,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:47,444 INFO L225 Difference]: With dead ends: 493 [2025-01-09 03:59:47,444 INFO L226 Difference]: Without dead ends: 252 [2025-01-09 03:59:47,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 03:59:47,445 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 0 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:47,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 300 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:59:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2025-01-09 03:59:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2025-01-09 03:59:47,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 185 states have (on average 1.281081081081081) internal successors, (237), 202 states have internal predecessors, (237), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2025-01-09 03:59:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 317 transitions. [2025-01-09 03:59:47,470 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 317 transitions. Word has length 53 [2025-01-09 03:59:47,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:47,471 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 317 transitions. [2025-01-09 03:59:47,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2025-01-09 03:59:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 317 transitions. [2025-01-09 03:59:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2025-01-09 03:59:47,476 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:47,476 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] [2025-01-09 03:59:47,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:59:47,476 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:47,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1573639471, now seen corresponding path program 1 times [2025-01-09 03:59:47,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:47,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222000727] [2025-01-09 03:59:47,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:47,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:47,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-01-09 03:59:47,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-01-09 03:59:47,497 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:47,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:47,617 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 03:59:47,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:47,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222000727] [2025-01-09 03:59:47,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222000727] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:47,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:47,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:59:47,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180524434] [2025-01-09 03:59:47,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:47,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:59:47,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:47,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:59:47,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:59:47,621 INFO L87 Difference]: Start difference. First operand 252 states and 317 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 03:59:47,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:47,764 INFO L93 Difference]: Finished difference Result 803 states and 1043 transitions. [2025-01-09 03:59:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:59:47,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 53 [2025-01-09 03:59:47,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:47,769 INFO L225 Difference]: With dead ends: 803 [2025-01-09 03:59:47,770 INFO L226 Difference]: Without dead ends: 558 [2025-01-09 03:59:47,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 03:59:47,771 INFO L435 NwaCegarLoop]: 167 mSDtfsCounter, 131 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:47,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 325 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:59:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2025-01-09 03:59:47,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 546. [2025-01-09 03:59:47,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 401 states have (on average 1.2618453865336658) internal successors, (506), 432 states have internal predecessors, (506), 76 states have call successors, (76), 66 states have call predecessors, (76), 68 states have return successors, (112), 72 states have call predecessors, (112), 76 states have call successors, (112) [2025-01-09 03:59:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 694 transitions. [2025-01-09 03:59:47,819 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 694 transitions. Word has length 53 [2025-01-09 03:59:47,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:47,821 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 694 transitions. [2025-01-09 03:59:47,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2025-01-09 03:59:47,821 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 694 transitions. [2025-01-09 03:59:47,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-01-09 03:59:47,823 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:47,823 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, 1, 1, 1] [2025-01-09 03:59:47,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:59:47,824 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:47,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:47,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1857541623, now seen corresponding path program 1 times [2025-01-09 03:59:47,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:47,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898849382] [2025-01-09 03:59:47,825 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:47,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:47,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-09 03:59:47,851 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-09 03:59:47,851 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:47,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:47,973 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 03:59:47,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:47,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898849382] [2025-01-09 03:59:47,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898849382] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:47,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:47,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:59:47,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180952933] [2025-01-09 03:59:47,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:47,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:59:47,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:47,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:59:47,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:59:47,974 INFO L87 Difference]: Start difference. First operand 546 states and 694 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 03:59:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:48,174 INFO L93 Difference]: Finished difference Result 1602 states and 2091 transitions. [2025-01-09 03:59:48,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:59:48,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-01-09 03:59:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:48,188 INFO L225 Difference]: With dead ends: 1602 [2025-01-09 03:59:48,188 INFO L226 Difference]: Without dead ends: 1063 [2025-01-09 03:59:48,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:59:48,194 INFO L435 NwaCegarLoop]: 102 mSDtfsCounter, 74 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:48,195 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 462 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:59:48,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2025-01-09 03:59:48,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 1063. [2025-01-09 03:59:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 774 states have (on average 1.2403100775193798) internal successors, (960), 835 states have internal predecessors, (960), 152 states have call successors, (152), 132 states have call predecessors, (152), 136 states have return successors, (234), 144 states have call predecessors, (234), 152 states have call successors, (234) [2025-01-09 03:59:48,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1346 transitions. [2025-01-09 03:59:48,318 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1346 transitions. Word has length 57 [2025-01-09 03:59:48,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:48,318 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1346 transitions. [2025-01-09 03:59:48,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2025-01-09 03:59:48,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1346 transitions. [2025-01-09 03:59:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-09 03:59:48,321 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:48,322 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, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:48,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:59:48,322 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:48,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:48,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1943201595, now seen corresponding path program 1 times [2025-01-09 03:59:48,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:48,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893302679] [2025-01-09 03:59:48,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:48,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:48,333 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-09 03:59:48,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-09 03:59:48,344 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:48,344 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:48,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 03:59:48,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893302679] [2025-01-09 03:59:48,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893302679] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:59:48,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814543382] [2025-01-09 03:59:48,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:48,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:59:48,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:59:48,521 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 03:59:48,523 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 03:59:48,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 61 statements into 1 equivalence classes. [2025-01-09 03:59:48,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 61 of 61 statements. [2025-01-09 03:59:48,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:48,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:48,610 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:59:48,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:59:48,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:59:48,835 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:59:48,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814543382] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:48,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:59:48,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [12] total 18 [2025-01-09 03:59:48,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793888204] [2025-01-09 03:59:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:48,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:59:48,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:48,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:59:48,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-01-09 03:59:48,837 INFO L87 Difference]: Start difference. First operand 1063 states and 1346 transitions. Second operand has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-09 03:59:49,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:49,070 INFO L93 Difference]: Finished difference Result 2115 states and 2687 transitions. [2025-01-09 03:59:49,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:59:49,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 61 [2025-01-09 03:59:49,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:49,078 INFO L225 Difference]: With dead ends: 2115 [2025-01-09 03:59:49,079 INFO L226 Difference]: Without dead ends: 1059 [2025-01-09 03:59:49,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2025-01-09 03:59:49,085 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 64 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:49,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 590 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:59:49,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2025-01-09 03:59:49,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1059. [2025-01-09 03:59:49,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 770 states have (on average 1.225974025974026) internal successors, (944), 829 states have internal predecessors, (944), 152 states have call successors, (152), 132 states have call predecessors, (152), 136 states have return successors, (214), 144 states have call predecessors, (214), 152 states have call successors, (214) [2025-01-09 03:59:49,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1310 transitions. [2025-01-09 03:59:49,177 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1310 transitions. Word has length 61 [2025-01-09 03:59:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:49,177 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1310 transitions. [2025-01-09 03:59:49,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (7), 3 states have call predecessors, (7), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-09 03:59:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1310 transitions. [2025-01-09 03:59:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 03:59:49,183 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:49,183 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:49,196 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 03:59:49,392 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 03:59:49,392 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:49,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:49,394 INFO L85 PathProgramCache]: Analyzing trace with hash 2102249613, now seen corresponding path program 1 times [2025-01-09 03:59:49,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:49,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529401932] [2025-01-09 03:59:49,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:49,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:49,404 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:59:49,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:59:49,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:49,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:49,453 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:59:49,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:49,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529401932] [2025-01-09 03:59:49,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529401932] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:49,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:59:49,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:59:49,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734648478] [2025-01-09 03:59:49,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:49,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:59:49,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:49,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:59:49,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:59:49,454 INFO L87 Difference]: Start difference. First operand 1059 states and 1310 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2025-01-09 03:59:49,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:49,567 INFO L93 Difference]: Finished difference Result 1263 states and 1560 transitions. [2025-01-09 03:59:49,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:59:49,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 91 [2025-01-09 03:59:49,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:49,572 INFO L225 Difference]: With dead ends: 1263 [2025-01-09 03:59:49,573 INFO L226 Difference]: Without dead ends: 517 [2025-01-09 03:59:49,576 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 03:59:49,577 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 129 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:49,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 245 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:59:49,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2025-01-09 03:59:49,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2025-01-09 03:59:49,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 376 states have (on average 1.1808510638297873) internal successors, (444), 402 states have internal predecessors, (444), 72 states have call successors, (72), 66 states have call predecessors, (72), 68 states have return successors, (103), 70 states have call predecessors, (103), 72 states have call successors, (103) [2025-01-09 03:59:49,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 619 transitions. [2025-01-09 03:59:49,628 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 619 transitions. Word has length 91 [2025-01-09 03:59:49,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:49,629 INFO L471 AbstractCegarLoop]: Abstraction has 517 states and 619 transitions. [2025-01-09 03:59:49,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 4 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2025-01-09 03:59:49,629 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 619 transitions. [2025-01-09 03:59:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-01-09 03:59:49,632 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:49,632 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:49,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 03:59:49,633 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:49,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:49,633 INFO L85 PathProgramCache]: Analyzing trace with hash -599176021, now seen corresponding path program 1 times [2025-01-09 03:59:49,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:49,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489740665] [2025-01-09 03:59:49,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:49,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:49,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-01-09 03:59:49,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-01-09 03:59:49,658 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:49,658 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:49,781 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:59:49,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:49,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489740665] [2025-01-09 03:59:49,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489740665] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:59:49,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078285367] [2025-01-09 03:59:49,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:49,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:59:49,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:59:49,785 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 03:59:49,787 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 03:59:49,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-01-09 03:59:49,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-01-09 03:59:49,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:49,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:49,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:59:49,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:59:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-09 03:59:50,001 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:59:50,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078285367] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:50,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:59:50,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2025-01-09 03:59:50,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173015678] [2025-01-09 03:59:50,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:50,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:59:50,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:50,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:59:50,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:59:50,004 INFO L87 Difference]: Start difference. First operand 517 states and 619 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:59:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:50,389 INFO L93 Difference]: Finished difference Result 1145 states and 1422 transitions. [2025-01-09 03:59:50,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:59:50,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 108 [2025-01-09 03:59:50,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:50,396 INFO L225 Difference]: With dead ends: 1145 [2025-01-09 03:59:50,396 INFO L226 Difference]: Without dead ends: 723 [2025-01-09 03:59:50,398 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:59:50,399 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 135 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:50,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 282 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:59:50,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2025-01-09 03:59:50,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 721. [2025-01-09 03:59:50,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 525 states have (on average 1.161904761904762) internal successors, (610), 559 states have internal predecessors, (610), 102 states have call successors, (102), 84 states have call predecessors, (102), 93 states have return successors, (176), 103 states have call predecessors, (176), 102 states have call successors, (176) [2025-01-09 03:59:50,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 888 transitions. [2025-01-09 03:59:50,484 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 888 transitions. Word has length 108 [2025-01-09 03:59:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:50,484 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 888 transitions. [2025-01-09 03:59:50,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 3 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:59:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 888 transitions. [2025-01-09 03:59:50,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-09 03:59:50,488 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:59:50,488 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:50,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 03:59:50,689 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 03:59:50,689 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:59:50,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:59:50,690 INFO L85 PathProgramCache]: Analyzing trace with hash 2029526033, now seen corresponding path program 1 times [2025-01-09 03:59:50,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:59:50,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141257814] [2025-01-09 03:59:50,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:50,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:59:50,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 03:59:50,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 03:59:50,711 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:50,711 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:59:50,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:59:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141257814] [2025-01-09 03:59:50,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141257814] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:59:50,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825613308] [2025-01-09 03:59:50,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:59:50,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:59:50,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:59:50,918 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 03:59:50,921 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 03:59:50,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 03:59:51,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 03:59:51,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:59:51,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:59:51,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:59:51,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:59:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-01-09 03:59:51,172 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:59:51,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825613308] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:59:51,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:59:51,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2025-01-09 03:59:51,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908579779] [2025-01-09 03:59:51,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:59:51,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:59:51,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:59:51,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:59:51,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2025-01-09 03:59:51,174 INFO L87 Difference]: Start difference. First operand 721 states and 888 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 03:59:51,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:59:51,371 INFO L93 Difference]: Finished difference Result 1275 states and 1597 transitions. [2025-01-09 03:59:51,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:59:51,372 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 104 [2025-01-09 03:59:51,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:59:51,374 INFO L225 Difference]: With dead ends: 1275 [2025-01-09 03:59:51,374 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 03:59:51,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2025-01-09 03:59:51,378 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 56 mSDsluCounter, 555 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:59:51,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 717 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:59:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 03:59:51,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 03:59:51,379 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 03:59:51,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 03:59:51,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2025-01-09 03:59:51,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:59:51,381 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 03:59:51,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2025-01-09 03:59:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 03:59:51,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 03:59:51,384 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 03:59:51,392 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 03:59:51,589 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 03:59:51,592 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:59:51,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 03:59:55,505 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 03:59:55,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 03:59:55 BoogieIcfgContainer [2025-01-09 03:59:55,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 03:59:55,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 03:59:55,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 03:59:55,517 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 03:59:55,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:59:45" (3/4) ... [2025-01-09 03:59:55,520 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 03:59:55,525 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2025-01-09 03:59:55,525 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2025-01-09 03:59:55,525 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2025-01-09 03:59:55,525 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2025-01-09 03:59:55,526 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2025-01-09 03:59:55,526 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2025-01-09 03:59:55,526 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2025-01-09 03:59:55,526 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2025-01-09 03:59:55,526 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2025-01-09 03:59:55,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2025-01-09 03:59:55,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 03:59:55,531 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 03:59:55,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 03:59:55,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 03:59:55,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 03:59:55,636 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 03:59:55,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 03:59:55,637 INFO L158 Benchmark]: Toolchain (without parser) took 10572.78ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 124.2MB in the beginning and 347.1MB in the end (delta: -223.0MB). Peak memory consumption was 213.0MB. Max. memory is 16.1GB. [2025-01-09 03:59:55,637 INFO L158 Benchmark]: CDTParser took 1.12ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:59:55,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.91ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 105.3MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 03:59:55,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.27ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 103.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 03:59:55,638 INFO L158 Benchmark]: Boogie Preprocessor took 46.85ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 101.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 03:59:55,638 INFO L158 Benchmark]: RCFGBuilder took 392.13ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 84.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 03:59:55,639 INFO L158 Benchmark]: TraceAbstraction took 9586.78ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 84.3MB in the beginning and 137.3MB in the end (delta: -53.0MB). Peak memory consumption was 172.7MB. Max. memory is 16.1GB. [2025-01-09 03:59:55,639 INFO L158 Benchmark]: Witness Printer took 118.87ms. Allocated memory is still 385.9MB. Free memory was 137.3MB in the beginning and 347.1MB in the end (delta: -209.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 03:59:55,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.91ms. Allocated memory is still 167.8MB. Free memory was 123.6MB in the beginning and 105.3MB in the end (delta: 18.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.27ms. Allocated memory is still 167.8MB. Free memory was 105.3MB in the beginning and 103.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.85ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 101.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 392.13ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 84.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9586.78ms. Allocated memory was 167.8MB in the beginning and 385.9MB in the end (delta: 218.1MB). Free memory was 84.3MB in the beginning and 137.3MB in the end (delta: -53.0MB). Peak memory consumption was 172.7MB. Max. memory is 16.1GB. * Witness Printer took 118.87ms. Allocated memory is still 385.9MB. Free memory was 137.3MB in the beginning and 347.1MB in the end (delta: -209.9MB). Peak memory consumption was 8.4MB. 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,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [78] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [125] - GenericResultAtLocation [Line: 225]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [225] - GenericResultAtLocation [Line: 440]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [440] - GenericResultAtLocation [Line: 508]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [508] - GenericResultAtLocation [Line: 874]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [874] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 83]: 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 10 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 12, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 765 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 749 mSDsluCounter, 4201 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2681 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 699 IncrementalHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 1520 mSDtfsCounter, 699 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 349 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1063occurred in iteration=8, InterpolantAutomatonStates: 60, 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, 12 MinimizatonAttempts, 18 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 942 ConstructedInterpolants, 0 QuantifiedInterpolants, 1657 SizeOfPredicates, 1 NumberOfNonLiveVariables, 892 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 210/225 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: 452]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (0 == systemActive)) || ((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 == systemActive))) || (((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 886]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 500]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 03:59:55,663 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