/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:39:53,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:39:53,386 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:39:53,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:39:53,391 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:39:53,412 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:39:53,413 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:39:53,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:39:53,413 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:39:53,416 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:39:53,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:39:53,417 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:39:53,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:39:53,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:39:53,418 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:39:53,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:39:53,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:39:53,419 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:39:53,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:39:53,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:39:53,419 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:39:53,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:39:53,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:39:53,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:39:53,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:39:53,420 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:39:53,420 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:39:53,420 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:39:53,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:39:53,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:39:53,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:39:53,421 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:39:53,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:39:53,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:39:53,423 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:39:53,423 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:39:53,423 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:39:53,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:39:53,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:39:53,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:39:53,633 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:39:53,633 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:39:53,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2023-12-19 23:39:54,702 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:39:54,952 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:39:54,953 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c [2023-12-19 23:39:54,964 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2645a82f4/f3e5fc4822eb4ea181f0ed5ad39d4864/FLAG8cf754c02 [2023-12-19 23:39:54,974 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2645a82f4/f3e5fc4822eb4ea181f0ed5ad39d4864 [2023-12-19 23:39:54,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:39:54,977 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:39:54,978 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:39:54,978 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:39:54,985 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:39:54,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:39:54" (1/1) ... [2023-12-19 23:39:54,986 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3559549a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:54, skipping insertion in model container [2023-12-19 23:39:54,986 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:39:54" (1/1) ... [2023-12-19 23:39:55,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:39:55,267 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c[18431,18444] [2023-12-19 23:39:55,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:39:55,285 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:39:55,291 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2023-12-19 23:39:55,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] [2023-12-19 23:39:55,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] [2023-12-19 23:39:55,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [458] [2023-12-19 23:39:55,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [824] [2023-12-19 23:39:55,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [923] [2023-12-19 23:39:55,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] [2023-12-19 23:39:55,294 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [967] [2023-12-19 23:39:55,334 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product52.cil.c[18431,18444] [2023-12-19 23:39:55,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:39:55,349 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:39:55,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55 WrapperNode [2023-12-19 23:39:55,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:39:55,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:39:55,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:39:55,351 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:39:55,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,400 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 210 [2023-12-19 23:39:55,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:39:55,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:39:55,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:39:55,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:39:55,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,421 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,440 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]. [2023-12-19 23:39:55,441 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,441 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,444 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,457 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:39:55,457 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:39:55,457 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:39:55,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:39:55,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (1/1) ... [2023-12-19 23:39:55,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:39:55,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:55,492 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:39:55,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:39:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:39:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:39:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:39:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:39:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:39:55,519 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:39:55,519 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:39:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:39:55,520 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:39:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:39:55,520 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:39:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:39:55,520 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:39:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:39:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:39:55,520 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:39:55,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:39:55,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:39:55,599 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:39:55,601 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:39:55,817 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:39:55,872 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:39:55,872 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:39:55,872 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:39:55 BoogieIcfgContainer [2023-12-19 23:39:55,872 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:39:55,874 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:39:55,874 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:39:55,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:39:55,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:39:54" (1/3) ... [2023-12-19 23:39:55,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e61f70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:39:55, skipping insertion in model container [2023-12-19 23:39:55,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:55" (2/3) ... [2023-12-19 23:39:55,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e61f70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:39:55, skipping insertion in model container [2023-12-19 23:39:55,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:39:55" (3/3) ... [2023-12-19 23:39:55,878 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product52.cil.c [2023-12-19 23:39:55,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:39:55,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:39:55,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:39:55,937 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@7f1ffc10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:39:55,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:39:55,949 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 48 states have (on average 1.5625) internal successors, (75), 57 states have internal predecessors, (75), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 23:39:55,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-19 23:39:55,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:55,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:55,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:55,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:55,964 INFO L85 PathProgramCache]: Analyzing trace with hash 84840355, now seen corresponding path program 1 times [2023-12-19 23:39:55,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:55,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879078054] [2023-12-19 23:39:55,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:55,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:56,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:56,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879078054] [2023-12-19 23:39:56,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879078054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:56,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:56,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:39:56,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349331761] [2023-12-19 23:39:56,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:56,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:39:56,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:56,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:39:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:39:56,093 INFO L87 Difference]: Start difference. First operand has 69 states, 48 states have (on average 1.5625) internal successors, (75), 57 states have internal predecessors, (75), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 9 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:56,142 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2023-12-19 23:39:56,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:39:56,144 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-12-19 23:39:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:56,152 INFO L225 Difference]: With dead ends: 136 [2023-12-19 23:39:56,152 INFO L226 Difference]: Without dead ends: 64 [2023-12-19 23:39:56,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:39:56,160 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:56,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:56,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-19 23:39:56,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-19 23:39:56,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 53 states have internal predecessors, (65), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 23:39:56,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2023-12-19 23:39:56,188 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 12 [2023-12-19 23:39:56,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:56,188 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2023-12-19 23:39:56,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,189 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2023-12-19 23:39:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-19 23:39:56,190 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:56,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:56,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:39:56,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:56,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:56,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1383562372, now seen corresponding path program 1 times [2023-12-19 23:39:56,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:56,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716103263] [2023-12-19 23:39:56,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:56,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:56,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:56,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:56,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:56,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716103263] [2023-12-19 23:39:56,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716103263] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:56,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:56,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:56,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271312473] [2023-12-19 23:39:56,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:56,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:39:56,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:56,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:39:56,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:56,287 INFO L87 Difference]: Start difference. First operand 64 states and 88 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:56,327 INFO L93 Difference]: Finished difference Result 98 states and 134 transitions. [2023-12-19 23:39:56,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:39:56,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-19 23:39:56,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:56,328 INFO L225 Difference]: With dead ends: 98 [2023-12-19 23:39:56,328 INFO L226 Difference]: Without dead ends: 56 [2023-12-19 23:39:56,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:56,330 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:56,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 112 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:56,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2023-12-19 23:39:56,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2023-12-19 23:39:56,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 6 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-19 23:39:56,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 77 transitions. [2023-12-19 23:39:56,335 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 77 transitions. Word has length 13 [2023-12-19 23:39:56,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:56,336 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 77 transitions. [2023-12-19 23:39:56,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 77 transitions. [2023-12-19 23:39:56,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-19 23:39:56,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:56,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:56,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:39:56,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:56,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:56,337 INFO L85 PathProgramCache]: Analyzing trace with hash -181124471, now seen corresponding path program 1 times [2023-12-19 23:39:56,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:56,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123135287] [2023-12-19 23:39:56,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:56,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:56,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:56,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:56,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:56,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123135287] [2023-12-19 23:39:56,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123135287] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:56,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:56,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:56,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790627753] [2023-12-19 23:39:56,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:56,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:39:56,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:56,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:39:56,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:56,434 INFO L87 Difference]: Start difference. First operand 56 states and 77 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:56,500 INFO L93 Difference]: Finished difference Result 164 states and 228 transitions. [2023-12-19 23:39:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:39:56,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-19 23:39:56,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:56,502 INFO L225 Difference]: With dead ends: 164 [2023-12-19 23:39:56,502 INFO L226 Difference]: Without dead ends: 110 [2023-12-19 23:39:56,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:56,503 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 71 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:56,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 131 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:56,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-19 23:39:56,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 107. [2023-12-19 23:39:56,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 76 states have (on average 1.486842105263158) internal successors, (113), 91 states have internal predecessors, (113), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (18), 11 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-19 23:39:56,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2023-12-19 23:39:56,516 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 16 [2023-12-19 23:39:56,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:56,517 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2023-12-19 23:39:56,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,517 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2023-12-19 23:39:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-19 23:39:56,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:56,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:56,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:39:56,518 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:56,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:56,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1836119556, now seen corresponding path program 1 times [2023-12-19 23:39:56,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:56,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330313286] [2023-12-19 23:39:56,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:56,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:56,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:56,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:56,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330313286] [2023-12-19 23:39:56,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330313286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:56,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:56,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:56,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140282391] [2023-12-19 23:39:56,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:56,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:39:56,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:56,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:39:56,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:39:56,602 INFO L87 Difference]: Start difference. First operand 107 states and 149 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:56,674 INFO L93 Difference]: Finished difference Result 307 states and 444 transitions. [2023-12-19 23:39:56,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:39:56,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-19 23:39:56,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:56,676 INFO L225 Difference]: With dead ends: 307 [2023-12-19 23:39:56,676 INFO L226 Difference]: Without dead ends: 202 [2023-12-19 23:39:56,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:39:56,678 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 51 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:56,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 178 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:56,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2023-12-19 23:39:56,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2023-12-19 23:39:56,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 143 states have (on average 1.4475524475524475) internal successors, (207), 170 states have internal predecessors, (207), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (38), 20 states have call predecessors, (38), 36 states have call successors, (38) [2023-12-19 23:39:56,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 281 transitions. [2023-12-19 23:39:56,702 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 281 transitions. Word has length 19 [2023-12-19 23:39:56,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:56,702 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 281 transitions. [2023-12-19 23:39:56,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,703 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 281 transitions. [2023-12-19 23:39:56,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:39:56,704 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:56,704 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:56,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:39:56,704 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:56,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:56,705 INFO L85 PathProgramCache]: Analyzing trace with hash -813651959, now seen corresponding path program 1 times [2023-12-19 23:39:56,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:56,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562034588] [2023-12-19 23:39:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:56,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:56,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:56,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:56,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562034588] [2023-12-19 23:39:56,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562034588] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:56,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:56,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:56,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618646630] [2023-12-19 23:39:56,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:56,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:39:56,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:56,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:39:56,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:39:56,835 INFO L87 Difference]: Start difference. First operand 202 states and 281 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:56,904 INFO L93 Difference]: Finished difference Result 508 states and 723 transitions. [2023-12-19 23:39:56,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:39:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-12-19 23:39:56,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:56,909 INFO L225 Difference]: With dead ends: 508 [2023-12-19 23:39:56,909 INFO L226 Difference]: Without dead ends: 308 [2023-12-19 23:39:56,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:39:56,918 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 43 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:56,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 171 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:56,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-12-19 23:39:56,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 298. [2023-12-19 23:39:56,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 219 states have (on average 1.365296803652968) internal successors, (299), 239 states have internal predecessors, (299), 41 states have call successors, (41), 39 states have call predecessors, (41), 37 states have return successors, (59), 36 states have call predecessors, (59), 41 states have call successors, (59) [2023-12-19 23:39:56,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 399 transitions. [2023-12-19 23:39:56,954 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 399 transitions. Word has length 21 [2023-12-19 23:39:56,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:56,955 INFO L495 AbstractCegarLoop]: Abstraction has 298 states and 399 transitions. [2023-12-19 23:39:56,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:39:56,955 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 399 transitions. [2023-12-19 23:39:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-19 23:39:56,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:56,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:56,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:39:56,957 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:56,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1324679984, now seen corresponding path program 1 times [2023-12-19 23:39:56,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:56,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539502618] [2023-12-19 23:39:56,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:56,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:57,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:39:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:39:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:57,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:57,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:57,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539502618] [2023-12-19 23:39:57,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539502618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:57,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:57,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:39:57,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243449021] [2023-12-19 23:39:57,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:57,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:39:57,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:57,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:39:57,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:39:57,132 INFO L87 Difference]: Start difference. First operand 298 states and 399 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:39:57,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:57,556 INFO L93 Difference]: Finished difference Result 734 states and 1051 transitions. [2023-12-19 23:39:57,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-12-19 23:39:57,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2023-12-19 23:39:57,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:57,559 INFO L225 Difference]: With dead ends: 734 [2023-12-19 23:39:57,559 INFO L226 Difference]: Without dead ends: 564 [2023-12-19 23:39:57,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2023-12-19 23:39:57,560 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 284 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:57,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 320 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:39:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2023-12-19 23:39:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 528. [2023-12-19 23:39:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 389 states have (on average 1.326478149100257) internal successors, (516), 428 states have internal predecessors, (516), 64 states have call successors, (64), 56 states have call predecessors, (64), 74 states have return successors, (148), 67 states have call predecessors, (148), 64 states have call successors, (148) [2023-12-19 23:39:57,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 728 transitions. [2023-12-19 23:39:57,596 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 728 transitions. Word has length 32 [2023-12-19 23:39:57,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:57,597 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 728 transitions. [2023-12-19 23:39:57,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 6 states have internal predecessors, (27), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:39:57,597 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 728 transitions. [2023-12-19 23:39:57,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-19 23:39:57,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:57,604 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:39:57,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:39:57,605 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:57,605 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:57,605 INFO L85 PathProgramCache]: Analyzing trace with hash 223751662, now seen corresponding path program 1 times [2023-12-19 23:39:57,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:57,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808970167] [2023-12-19 23:39:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:57,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:57,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-19 23:39:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:57,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:39:57,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:57,659 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:39:57,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:57,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808970167] [2023-12-19 23:39:57,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808970167] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:57,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:57,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:39:57,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733733668] [2023-12-19 23:39:57,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:57,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:39:57,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:57,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:39:57,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:57,660 INFO L87 Difference]: Start difference. First operand 528 states and 728 transitions. Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:39:57,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:57,831 INFO L93 Difference]: Finished difference Result 891 states and 1223 transitions. [2023-12-19 23:39:57,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:39:57,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 48 [2023-12-19 23:39:57,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:57,834 INFO L225 Difference]: With dead ends: 891 [2023-12-19 23:39:57,834 INFO L226 Difference]: Without dead ends: 365 [2023-12-19 23:39:57,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:39:57,836 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 192 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:57,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 158 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:57,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2023-12-19 23:39:57,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 343. [2023-12-19 23:39:57,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 253 states have (on average 1.3122529644268774) internal successors, (332), 280 states have internal predecessors, (332), 42 states have call successors, (42), 38 states have call predecessors, (42), 47 states have return successors, (85), 43 states have call predecessors, (85), 42 states have call successors, (85) [2023-12-19 23:39:57,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 459 transitions. [2023-12-19 23:39:57,863 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 459 transitions. Word has length 48 [2023-12-19 23:39:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:57,863 INFO L495 AbstractCegarLoop]: Abstraction has 343 states and 459 transitions. [2023-12-19 23:39:57,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:39:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 459 transitions. [2023-12-19 23:39:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-19 23:39:57,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:57,864 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:39:57,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:39:57,864 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:57,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1964733360, now seen corresponding path program 1 times [2023-12-19 23:39:57,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:57,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511433072] [2023-12-19 23:39:57,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:57,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:39:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:39:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:39:58,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-19 23:39:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:39:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,061 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 23:39:58,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:58,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511433072] [2023-12-19 23:39:58,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511433072] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:39:58,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119560407] [2023-12-19 23:39:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:58,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:39:58,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:58,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:39:58,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:39:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:58,156 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 23:39:58,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:39:58,265 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-19 23:39:58,265 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:39:58,465 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 23:39:58,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1119560407] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:39:58,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:39:58,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 7] total 13 [2023-12-19 23:39:58,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131752465] [2023-12-19 23:39:58,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:39:58,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 23:39:58,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:58,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 23:39:58,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:39:58,467 INFO L87 Difference]: Start difference. First operand 343 states and 459 transitions. Second operand has 13 states, 13 states have (on average 6.0) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-19 23:39:59,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:59,085 INFO L93 Difference]: Finished difference Result 900 states and 1285 transitions. [2023-12-19 23:39:59,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-12-19 23:39:59,086 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) Word has length 61 [2023-12-19 23:39:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:59,089 INFO L225 Difference]: With dead ends: 900 [2023-12-19 23:39:59,090 INFO L226 Difference]: Without dead ends: 651 [2023-12-19 23:39:59,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 127 SyntacticMatches, 6 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=299, Invalid=1033, Unknown=0, NotChecked=0, Total=1332 [2023-12-19 23:39:59,092 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 390 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:59,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 419 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:39:59,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-12-19 23:39:59,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 561. [2023-12-19 23:39:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 411 states have (on average 1.3090024330900243) internal successors, (538), 452 states have internal predecessors, (538), 72 states have call successors, (72), 68 states have call predecessors, (72), 77 states have return successors, (150), 67 states have call predecessors, (150), 72 states have call successors, (150) [2023-12-19 23:39:59,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 760 transitions. [2023-12-19 23:39:59,127 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 760 transitions. Word has length 61 [2023-12-19 23:39:59,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:59,128 INFO L495 AbstractCegarLoop]: Abstraction has 561 states and 760 transitions. [2023-12-19 23:39:59,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.0) internal successors, (78), 11 states have internal predecessors, (78), 7 states have call successors, (15), 8 states have call predecessors, (15), 7 states have return successors, (13), 7 states have call predecessors, (13), 6 states have call successors, (13) [2023-12-19 23:39:59,128 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 760 transitions. [2023-12-19 23:39:59,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 23:39:59,129 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:59,130 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:39:59,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:39:59,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:39:59,335 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:59,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:59,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1309373942, now seen corresponding path program 1 times [2023-12-19 23:39:59,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:59,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506519689] [2023-12-19 23:39:59,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:59,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:39:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:39:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:39:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:39:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,406 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 23:39:59,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506519689] [2023-12-19 23:39:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506519689] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:39:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1175343097] [2023-12-19 23:39:59,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:59,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:39:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:59,407 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:39:59,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:39:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:39:59,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:39:59,467 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 23:39:59,467 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:39:59,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1175343097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:59,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:39:59,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-12-19 23:39:59,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862942422] [2023-12-19 23:39:59,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:59,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:39:59,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:59,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:39:59,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:59,468 INFO L87 Difference]: Start difference. First operand 561 states and 760 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:39:59,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:59,536 INFO L93 Difference]: Finished difference Result 1130 states and 1577 transitions. [2023-12-19 23:39:59,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:39:59,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2023-12-19 23:39:59,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:59,539 INFO L225 Difference]: With dead ends: 1130 [2023-12-19 23:39:59,539 INFO L226 Difference]: Without dead ends: 571 [2023-12-19 23:39:59,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:59,541 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 2 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:59,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 192 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-12-19 23:39:59,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-12-19 23:39:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 421 states have (on average 1.3016627078384797) internal successors, (548), 462 states have internal predecessors, (548), 72 states have call successors, (72), 68 states have call predecessors, (72), 77 states have return successors, (150), 67 states have call predecessors, (150), 72 states have call successors, (150) [2023-12-19 23:39:59,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 770 transitions. [2023-12-19 23:39:59,586 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 770 transitions. Word has length 57 [2023-12-19 23:39:59,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:59,586 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 770 transitions. [2023-12-19 23:39:59,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:39:59,587 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 770 transitions. [2023-12-19 23:39:59,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-19 23:39:59,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:59,588 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:39:59,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:39:59,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-12-19 23:39:59,793 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:59,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:59,794 INFO L85 PathProgramCache]: Analyzing trace with hash -535993224, now seen corresponding path program 1 times [2023-12-19 23:39:59,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:59,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995247308] [2023-12-19 23:39:59,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:59,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:39:59,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:39:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:39:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:39:59,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:59,900 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 23:39:59,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:59,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995247308] [2023-12-19 23:39:59,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995247308] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:39:59,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293710036] [2023-12-19 23:39:59,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:59,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:39:59,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:59,909 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:39:59,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:40:00,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:40:00,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-19 23:40:00,098 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:40:00,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293710036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:00,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:40:00,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-19 23:40:00,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862175874] [2023-12-19 23:40:00,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:00,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:40:00,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:00,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:40:00,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:40:00,103 INFO L87 Difference]: Start difference. First operand 571 states and 770 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:40:00,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:00,150 INFO L93 Difference]: Finished difference Result 1061 states and 1457 transitions. [2023-12-19 23:40:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:40:00,150 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2023-12-19 23:40:00,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:00,153 INFO L225 Difference]: With dead ends: 1061 [2023-12-19 23:40:00,153 INFO L226 Difference]: Without dead ends: 492 [2023-12-19 23:40:00,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:40:00,155 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 6 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:00,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 185 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:00,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-19 23:40:00,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 492. [2023-12-19 23:40:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492 states, 363 states have (on average 1.2837465564738293) internal successors, (466), 397 states have internal predecessors, (466), 64 states have call successors, (64), 60 states have call predecessors, (64), 64 states have return successors, (115), 57 states have call predecessors, (115), 64 states have call successors, (115) [2023-12-19 23:40:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 645 transitions. [2023-12-19 23:40:00,177 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 645 transitions. Word has length 57 [2023-12-19 23:40:00,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:00,177 INFO L495 AbstractCegarLoop]: Abstraction has 492 states and 645 transitions. [2023-12-19 23:40:00,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:40:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 645 transitions. [2023-12-19 23:40:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 23:40:00,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:00,179 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:00,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:00,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:00,386 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:00,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash -499769044, now seen corresponding path program 1 times [2023-12-19 23:40:00,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:00,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500037] [2023-12-19 23:40:00,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:00,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:00,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 23:40:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:40:00,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,594 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 44 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-19 23:40:00,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:00,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500037] [2023-12-19 23:40:00,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500037] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:00,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959721440] [2023-12-19 23:40:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:00,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:00,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:00,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:00,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-19 23:40:00,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:00,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 23:40:00,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:00,768 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:00,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:00,884 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 9 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 23:40:00,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959721440] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:00,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:00,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 16 [2023-12-19 23:40:00,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175365090] [2023-12-19 23:40:00,884 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:00,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-19 23:40:00,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:00,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-19 23:40:00,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:40:00,885 INFO L87 Difference]: Start difference. First operand 492 states and 645 transitions. Second operand has 16 states, 16 states have (on average 5.9375) internal successors, (95), 14 states have internal predecessors, (95), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-19 23:40:01,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:01,493 INFO L93 Difference]: Finished difference Result 1364 states and 1885 transitions. [2023-12-19 23:40:01,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-12-19 23:40:01,494 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 14 states have internal predecessors, (95), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 90 [2023-12-19 23:40:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:01,498 INFO L225 Difference]: With dead ends: 1364 [2023-12-19 23:40:01,498 INFO L226 Difference]: Without dead ends: 936 [2023-12-19 23:40:01,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 189 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=683, Unknown=0, NotChecked=0, Total=930 [2023-12-19 23:40:01,501 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 361 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:01,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 591 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [128 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:40:01,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2023-12-19 23:40:01,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 743. [2023-12-19 23:40:01,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 548 states have (on average 1.281021897810219) internal successors, (702), 596 states have internal predecessors, (702), 98 states have call successors, (98), 91 states have call predecessors, (98), 96 states have return successors, (164), 87 states have call predecessors, (164), 98 states have call successors, (164) [2023-12-19 23:40:01,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 964 transitions. [2023-12-19 23:40:01,534 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 964 transitions. Word has length 90 [2023-12-19 23:40:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:01,534 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 964 transitions. [2023-12-19 23:40:01,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.9375) internal successors, (95), 14 states have internal predecessors, (95), 6 states have call successors, (19), 8 states have call predecessors, (19), 6 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2023-12-19 23:40:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 964 transitions. [2023-12-19 23:40:01,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-19 23:40:01,537 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:01,537 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:01,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-19 23:40:01,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:01,743 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:01,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:01,743 INFO L85 PathProgramCache]: Analyzing trace with hash 393717294, now seen corresponding path program 1 times [2023-12-19 23:40:01,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:01,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612018145] [2023-12-19 23:40:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:01,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:40:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 23:40:01,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:01,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:01,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-19 23:40:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:01,826 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-12-19 23:40:01,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:01,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612018145] [2023-12-19 23:40:01,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612018145] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:01,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:01,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:40:01,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235425840] [2023-12-19 23:40:01,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:01,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:40:01,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:01,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:40:01,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:01,827 INFO L87 Difference]: Start difference. First operand 743 states and 964 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:40:01,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:01,946 INFO L93 Difference]: Finished difference Result 1014 states and 1298 transitions. [2023-12-19 23:40:01,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:40:01,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2023-12-19 23:40:01,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:01,961 INFO L225 Difference]: With dead ends: 1014 [2023-12-19 23:40:01,961 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:40:01,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:40:01,963 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 101 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:01,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 128 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:01,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:40:01,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:40:01,963 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) [2023-12-19 23:40:01,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:40:01,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 90 [2023-12-19 23:40:01,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:01,964 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:40:01,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-19 23:40:01,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:40:01,964 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:40:01,966 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:40:01,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-19 23:40:01,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:40:02,735 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 263 270) no Hoare annotation was computed. [2023-12-19 23:40:02,735 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 263 270) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) (or .cse0 (< ~waterLevel~0 2) (= 0 ~systemActive~0)))) [2023-12-19 23:40:02,735 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 196 202) no Hoare annotation was computed. [2023-12-19 23:40:02,735 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 196 202) the Hoare annotation is: true [2023-12-19 23:40:02,735 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 84 95) the Hoare annotation is: true [2023-12-19 23:40:02,735 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 84 95) no Hoare annotation was computed. [2023-12-19 23:40:02,735 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 84 95) no Hoare annotation was computed. [2023-12-19 23:40:02,735 INFO L902 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: true [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 826 855) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L851(lines 826 855) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L847(line 847) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 826 855) the Hoare annotation is: true [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L840(lines 840 844) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L902 garLoopResultBuilder]: At program point L840-1(lines 840 844) the Hoare annotation is: true [2023-12-19 23:40:02,736 INFO L902 garLoopResultBuilder]: At program point L836-2(lines 836 850) the Hoare annotation is: true [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 68) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L64-2(lines 60 71) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L176-1(lines 175 194) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L238(lines 238 246) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L234(lines 234 251) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 359) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L899 garLoopResultBuilder]: For program point L355-2(lines 355 359) no Hoare annotation was computed. [2023-12-19 23:40:02,736 INFO L895 garLoopResultBuilder]: At program point L244(line 244) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (< |old(~waterLevel~0)| 1))) (and (or .cse0 (< |old(~waterLevel~0)| 2)) (or .cse1 .cse2 .cse0) (or .cse1 .cse2 (not (= 0 ~systemActive~0))))) [2023-12-19 23:40:02,736 INFO L895 garLoopResultBuilder]: At program point L240(line 240) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |timeShift_processEnvironment_~tmp~1#1|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2023-12-19 23:40:02,737 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 172 195) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse5 (and .cse6 (= ~waterLevel~0 1))) (.cse7 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2)) (or .cse3 .cse4 .cse0 .cse5) (or .cse3 (and .cse6 .cse2) .cse1 .cse7) (or .cse3 .cse4 .cse5 .cse7)))) [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L963(line 963) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L895 garLoopResultBuilder]: At program point L249(line 249) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not .cse2))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (= ~waterLevel~0 1))) (or .cse3 (< |old(~waterLevel~0)| 1) (not (= 0 ~systemActive~0)))))) [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L249-1(lines 230 254) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 183 189) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 986) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L976(lines 976 989) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L976-1(lines 968 992) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 172 195) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 963) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L453(lines 390 457) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L420(lines 420 426) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L899 garLoopResultBuilder]: For program point L420-1(lines 420 426) no Hoare annotation was computed. [2023-12-19 23:40:02,737 INFO L895 garLoopResultBuilder]: At program point L412(line 412) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 .cse3 (= 0 ~systemActive~0)) (and .cse2 .cse0 .cse1 .cse3))) [2023-12-19 23:40:02,738 INFO L895 garLoopResultBuilder]: At program point L371(line 371) the Hoare annotation is: (and (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2023-12-19 23:40:02,738 INFO L895 garLoopResultBuilder]: At program point L450(lines 399 451) the Hoare annotation is: false [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L438(lines 438 444) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L895 garLoopResultBuilder]: At program point L438-2(lines 430 445) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 .cse3 (= 0 ~systemActive~0)) (and .cse2 .cse0 .cse1 .cse3))) [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L401(lines 400 449) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L430(lines 430 445) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L895 garLoopResultBuilder]: At program point L422(line 422) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 .cse3 (= 0 ~systemActive~0)) (and .cse2 .cse0 .cse1 .cse3))) [2023-12-19 23:40:02,738 INFO L895 garLoopResultBuilder]: At program point L447(lines 400 449) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse1 .cse3 (= 0 ~systemActive~0)) (and .cse2 .cse0 .cse1 .cse3))) [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L410(lines 410 416) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 410 416) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L369(lines 369 375) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L369-1(lines 369 375) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L910(lines 910 917) no Hoare annotation was computed. [2023-12-19 23:40:02,738 INFO L899 garLoopResultBuilder]: For program point L910-2(lines 910 917) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L895 garLoopResultBuilder]: At program point L223(line 223) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (< ~waterLevel~0 2)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1))) [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 204 228) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 147) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 204 228) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 137 150) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 204 228) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L895 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (and (or .cse0 .cse1 (and .cse2 .cse3) (< ~waterLevel~0 2)) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse2 .cse3)))) [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 220) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 225) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 340) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L336-2(lines 336 340) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 72 83) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 72 83) no Hoare annotation was computed. [2023-12-19 23:40:02,739 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 72 83) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (< |old(~waterLevel~0)| 2)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= ~pumpRunning~0 0))) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= ~waterLevel~0 1)) (.cse6 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse5) (or .cse3 .cse1 .cse2 .cse6) (or .cse3 .cse4 .cse5 .cse6))) [2023-12-19 23:40:02,741 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:02,742 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:40:02,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:40:02 BoogieIcfgContainer [2023-12-19 23:40:02,750 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:40:02,751 INFO L158 Benchmark]: Toolchain (without parser) took 7773.55ms. Allocated memory was 266.3MB in the beginning and 326.1MB in the end (delta: 59.8MB). Free memory was 221.6MB in the beginning and 203.8MB in the end (delta: 17.8MB). Peak memory consumption was 180.0MB. Max. memory is 8.0GB. [2023-12-19 23:40:02,751 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:40:02,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.29ms. Allocated memory is still 266.3MB. Free memory was 221.6MB in the beginning and 201.6MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:40:02,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.08ms. Allocated memory is still 266.3MB. Free memory was 201.6MB in the beginning and 199.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:02,751 INFO L158 Benchmark]: Boogie Preprocessor took 49.44ms. Allocated memory is still 266.3MB. Free memory was 199.3MB in the beginning and 196.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:02,751 INFO L158 Benchmark]: RCFGBuilder took 415.11ms. Allocated memory is still 266.3MB. Free memory was 196.8MB in the beginning and 175.2MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-19 23:40:02,751 INFO L158 Benchmark]: TraceAbstraction took 6876.15ms. Allocated memory was 266.3MB in the beginning and 326.1MB in the end (delta: 59.8MB). Free memory was 174.4MB in the beginning and 203.8MB in the end (delta: -29.4MB). Peak memory consumption was 132.8MB. Max. memory is 8.0GB. [2023-12-19 23:40:02,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 194.0MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 372.29ms. Allocated memory is still 266.3MB. Free memory was 221.6MB in the beginning and 201.6MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 56.08ms. Allocated memory is still 266.3MB. Free memory was 201.6MB in the beginning and 199.3MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.44ms. Allocated memory is still 266.3MB. Free memory was 199.3MB in the beginning and 196.8MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 415.11ms. Allocated memory is still 266.3MB. Free memory was 196.8MB in the beginning and 175.2MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 6876.15ms. Allocated memory was 266.3MB in the beginning and 326.1MB in the end (delta: 59.8MB). Free memory was 174.4MB in the beginning and 203.8MB in the end (delta: -29.4MB). Peak memory consumption was 132.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] - GenericResultAtLocation [Line: 160]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [160] - GenericResultAtLocation [Line: 388]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [388] - GenericResultAtLocation [Line: 458]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [458] - GenericResultAtLocation [Line: 824]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [824] - GenericResultAtLocation [Line: 923]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [923] - GenericResultAtLocation [Line: 958]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [958] - GenericResultAtLocation [Line: 967]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [967] * 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: 963]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1547 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1515 mSDsluCounter, 2663 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1855 mSDsCounter, 414 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2927 IncrementalHoareTripleChecker+Invalid, 3341 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 414 mSolverCounterUnsat, 808 mSDtfsCounter, 2927 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 613 GetRequests, 486 SyntacticMatches, 10 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=11, InterpolantAutomatonStates: 115, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 354 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1033 PreInvPairs, 1089 NumberOfFragments, 535 HoareAnnotationTreeSize, 1033 FormulaSimplifications, 1244 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 1442 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 781 NumberOfCodeBlocks, 781 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 914 ConstructedInterpolants, 0 QuantifiedInterpolants, 1807 SizeOfPredicates, 8 NumberOfNonLiveVariables, 1056 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 18 InterpolantComputations, 10 PerfectInterpolantSequences, 352/399 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 399]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) RESULT: Ultimate proved your program to be correct! [2023-12-19 23:40:02,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...