/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_spec3_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:39:04,023 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:39:04,081 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 23:39:04,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:39:04,084 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:39:04,099 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:39:04,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:39:04,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:39:04,100 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:39:04,100 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:39:04,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:39:04,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:39:04,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:39:04,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:39:04,101 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:39:04,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:39:04,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:39:04,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:39:04,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:39:04,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:39:04,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:39:04,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:39:04,103 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:39:04,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:39:04,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:39:04,104 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:39:04,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:39:04,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:39:04,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:39:04,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:39:04,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:39:04,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:39:04,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:39:04,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:39:04,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:39:04,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:39:04,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:39:04,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:39:04,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:39:04,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:39:04,107 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:39:04,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:39:04,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:39:04,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:39:04,329 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:39:04,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:39:04,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:39:04,353 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:39:04,353 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:39:04,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product37.cil.c [2023-12-19 23:39:05,474 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:39:05,667 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:39:05,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product37.cil.c [2023-12-19 23:39:05,676 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbafd764f/a2586e8967ec42c6bd8ebf6072ab80fe/FLAG8d5dedb9d [2023-12-19 23:39:05,686 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dbafd764f/a2586e8967ec42c6bd8ebf6072ab80fe [2023-12-19 23:39:05,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:39:05,689 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:39:05,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:39:05,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:39:05,696 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:39:05,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:39:05" (1/1) ... [2023-12-19 23:39:05,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e3a95b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:05, skipping insertion in model container [2023-12-19 23:39:05,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:39:05" (1/1) ... [2023-12-19 23:39:05,724 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:39:05,921 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_spec3_product37.cil.c[17206,17219] [2023-12-19 23:39:05,927 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:39:05,936 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:39:05,944 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-19 23:39:05,946 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] [2023-12-19 23:39:05,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [519] [2023-12-19 23:39:05,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [705] [2023-12-19 23:39:05,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [770] [2023-12-19 23:39:05,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [865] [2023-12-19 23:39:05,949 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [874] [2023-12-19 23:39:05,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [908] [2023-12-19 23:39:05,995 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_spec3_product37.cil.c[17206,17219] [2023-12-19 23:39:05,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:39:06,009 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:39:06,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06 WrapperNode [2023-12-19 23:39:06,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:39:06,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:39:06,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:39:06,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:39:06,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,034 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,071 INFO L138 Inliner]: procedures = 53, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 198 [2023-12-19 23:39:06,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:39:06,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:39:06,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:39:06,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:39:06,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,081 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,101 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 23:39:06,102 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,102 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,104 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:39:06,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:39:06,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:39:06,112 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:39:06,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (1/1) ... [2023-12-19 23:39:06,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:39:06,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:06,165 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 23:39:06,196 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 23:39:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:39:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:39:06,228 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:39:06,228 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:39:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:39:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:39:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:39:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:39:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:39:06,229 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:39:06,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:39:06,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:39:06,300 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:39:06,315 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:39:06,540 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:39:06,590 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:39:06,590 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:39:06,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:39:06 BoogieIcfgContainer [2023-12-19 23:39:06,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:39:06,592 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:39:06,592 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:39:06,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:39:06,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:39:05" (1/3) ... [2023-12-19 23:39:06,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec46719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:39:06, skipping insertion in model container [2023-12-19 23:39:06,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:39:06" (2/3) ... [2023-12-19 23:39:06,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec46719 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:39:06, skipping insertion in model container [2023-12-19 23:39:06,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:39:06" (3/3) ... [2023-12-19 23:39:06,596 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37.cil.c [2023-12-19 23:39:06,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:39:06,609 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:39:06,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:39:06,643 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;@1a596ec0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:39:06,643 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:39:06,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-19 23:39:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:39:06,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:06,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:06,652 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:06,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:06,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1422138663, now seen corresponding path program 1 times [2023-12-19 23:39:06,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:06,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405605853] [2023-12-19 23:39:06,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:06,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:06,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:06,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:39:06,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:06,831 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 23:39:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:06,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405605853] [2023-12-19 23:39:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405605853] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:06,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:39:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377839872] [2023-12-19 23:39:06,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:06,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:39:06,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:06,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:39:06,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:39:06,905 INFO L87 Difference]: Start difference. First operand has 68 states, 47 states have (on average 1.553191489361702) internal successors, (73), 55 states have internal predecessors, (73), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:06,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:06,953 INFO L93 Difference]: Finished difference Result 134 states and 195 transitions. [2023-12-19 23:39:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:39:06,956 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-19 23:39:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:06,961 INFO L225 Difference]: With dead ends: 134 [2023-12-19 23:39:06,962 INFO L226 Difference]: Without dead ends: 63 [2023-12-19 23:39:06,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:39:06,966 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:06,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:06,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-12-19 23:39:06,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-12-19 23:39:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.4318181818181819) internal successors, (63), 51 states have internal predecessors, (63), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 23:39:06,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 86 transitions. [2023-12-19 23:39:06,999 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 86 transitions. Word has length 17 [2023-12-19 23:39:06,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:06,999 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 86 transitions. [2023-12-19 23:39:06,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2023-12-19 23:39:07,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-19 23:39:07,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:07,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:07,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:39:07,001 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:07,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:07,002 INFO L85 PathProgramCache]: Analyzing trace with hash -281378437, now seen corresponding path program 1 times [2023-12-19 23:39:07,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:07,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356152506] [2023-12-19 23:39:07,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:07,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:07,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:39:07,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,079 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 23:39:07,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:07,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356152506] [2023-12-19 23:39:07,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356152506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:07,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:07,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:07,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663330658] [2023-12-19 23:39:07,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:07,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:39:07,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:07,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:39:07,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:07,081 INFO L87 Difference]: Start difference. First operand 63 states and 86 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:07,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:07,126 INFO L93 Difference]: Finished difference Result 99 states and 135 transitions. [2023-12-19 23:39:07,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:39:07,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-19 23:39:07,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:07,127 INFO L225 Difference]: With dead ends: 99 [2023-12-19 23:39:07,127 INFO L226 Difference]: Without dead ends: 55 [2023-12-19 23:39:07,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:07,128 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 11 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:07,129 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 114 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:07,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-19 23:39:07,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-19 23:39:07,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.4615384615384615) internal successors, (57), 46 states have internal predecessors, (57), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-19 23:39:07,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 75 transitions. [2023-12-19 23:39:07,136 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 75 transitions. Word has length 18 [2023-12-19 23:39:07,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:07,136 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 75 transitions. [2023-12-19 23:39:07,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:07,137 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 75 transitions. [2023-12-19 23:39:07,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-19 23:39:07,137 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:07,137 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 23:39:07,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:39:07,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:07,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:07,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1667853593, now seen corresponding path program 1 times [2023-12-19 23:39:07,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:07,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768666796] [2023-12-19 23:39:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:07,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:07,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,255 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 23:39:07,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:07,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768666796] [2023-12-19 23:39:07,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768666796] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:07,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:07,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:39:07,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656023975] [2023-12-19 23:39:07,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:07,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:39:07,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:07,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:39:07,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:39:07,257 INFO L87 Difference]: Start difference. First operand 55 states and 75 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:07,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:07,337 INFO L93 Difference]: Finished difference Result 108 states and 149 transitions. [2023-12-19 23:39:07,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:39:07,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-19 23:39:07,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:07,340 INFO L225 Difference]: With dead ends: 108 [2023-12-19 23:39:07,340 INFO L226 Difference]: Without dead ends: 55 [2023-12-19 23:39:07,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 23:39:07,347 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 74 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:07,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 92 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-12-19 23:39:07,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-12-19 23:39:07,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 39 states have (on average 1.435897435897436) internal successors, (56), 46 states have internal predecessors, (56), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-19 23:39:07,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2023-12-19 23:39:07,356 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 21 [2023-12-19 23:39:07,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:07,356 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2023-12-19 23:39:07,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:39:07,356 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2023-12-19 23:39:07,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-19 23:39:07,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:07,357 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-19 23:39:07,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:39:07,357 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:07,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:07,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1802853743, now seen corresponding path program 1 times [2023-12-19 23:39:07,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:07,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195655039] [2023-12-19 23:39:07,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:07,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-19 23:39:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,420 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:39:07,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:07,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195655039] [2023-12-19 23:39:07,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195655039] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:07,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:07,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:39:07,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601264464] [2023-12-19 23:39:07,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:07,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:39:07,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:07,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:39:07,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:39:07,421 INFO L87 Difference]: Start difference. First operand 55 states and 74 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:39:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:07,483 INFO L93 Difference]: Finished difference Result 147 states and 201 transitions. [2023-12-19 23:39:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:39:07,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2023-12-19 23:39:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:07,485 INFO L225 Difference]: With dead ends: 147 [2023-12-19 23:39:07,485 INFO L226 Difference]: Without dead ends: 94 [2023-12-19 23:39:07,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 23:39:07,486 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 57 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:07,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 122 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:39:07,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-12-19 23:39:07,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2023-12-19 23:39:07,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 66 states have (on average 1.393939393939394) internal successors, (92), 73 states have internal predecessors, (92), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-12-19 23:39:07,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2023-12-19 23:39:07,498 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 28 [2023-12-19 23:39:07,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:07,498 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2023-12-19 23:39:07,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:39:07,498 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2023-12-19 23:39:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:39:07,499 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:07,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:07,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:39:07,499 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:07,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:07,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1647135842, now seen corresponding path program 1 times [2023-12-19 23:39:07,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:07,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512099239] [2023-12-19 23:39:07,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:07,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:07,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:39:07,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,607 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 23:39:07,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:07,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512099239] [2023-12-19 23:39:07,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512099239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:07,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:07,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:39:07,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581068471] [2023-12-19 23:39:07,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:07,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:39:07,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:07,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:39:07,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:07,609 INFO L87 Difference]: Start difference. First operand 92 states and 122 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 23:39:07,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:07,854 INFO L93 Difference]: Finished difference Result 313 states and 447 transitions. [2023-12-19 23:39:07,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-19 23:39:07,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 33 [2023-12-19 23:39:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:07,858 INFO L225 Difference]: With dead ends: 313 [2023-12-19 23:39:07,858 INFO L226 Difference]: Without dead ends: 223 [2023-12-19 23:39:07,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:39:07,864 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 132 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:07,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 233 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:39:07,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-12-19 23:39:07,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 216. [2023-12-19 23:39:07,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 157 states have (on average 1.3821656050955413) internal successors, (217), 168 states have internal predecessors, (217), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-12-19 23:39:07,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 301 transitions. [2023-12-19 23:39:07,901 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 301 transitions. Word has length 33 [2023-12-19 23:39:07,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:07,901 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 301 transitions. [2023-12-19 23:39:07,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 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 23:39:07,902 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 301 transitions. [2023-12-19 23:39:07,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:39:07,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:07,910 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:07,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:39:07,913 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:07,913 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:07,914 INFO L85 PathProgramCache]: Analyzing trace with hash -1059483552, now seen corresponding path program 1 times [2023-12-19 23:39:07,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:07,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417471004] [2023-12-19 23:39:07,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:07,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:39:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:07,979 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 23:39:07,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:07,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417471004] [2023-12-19 23:39:07,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417471004] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:07,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:07,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:39:07,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934044957] [2023-12-19 23:39:07,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:07,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:39:07,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:07,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:39:07,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:39:07,981 INFO L87 Difference]: Start difference. First operand 216 states and 301 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 23:39:08,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:08,093 INFO L93 Difference]: Finished difference Result 434 states and 612 transitions. [2023-12-19 23:39:08,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:39:08,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 33 [2023-12-19 23:39:08,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:08,099 INFO L225 Difference]: With dead ends: 434 [2023-12-19 23:39:08,099 INFO L226 Difference]: Without dead ends: 220 [2023-12-19 23:39:08,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:39:08,104 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 45 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:08,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 180 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:08,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-12-19 23:39:08,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 218. [2023-12-19 23:39:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.3773584905660377) internal successors, (219), 170 states have internal predecessors, (219), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-12-19 23:39:08,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 303 transitions. [2023-12-19 23:39:08,149 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 303 transitions. Word has length 33 [2023-12-19 23:39:08,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:08,149 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 303 transitions. [2023-12-19 23:39:08,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 23:39:08,150 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 303 transitions. [2023-12-19 23:39:08,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-19 23:39:08,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:08,152 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:08,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:39:08,153 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:08,154 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:08,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1955620066, now seen corresponding path program 1 times [2023-12-19 23:39:08,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:08,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480699945] [2023-12-19 23:39:08,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:08,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:08,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-19 23:39:08,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,242 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 23:39:08,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:08,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480699945] [2023-12-19 23:39:08,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480699945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:08,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:08,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:39:08,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317039823] [2023-12-19 23:39:08,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:08,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:39:08,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:08,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:39:08,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:08,245 INFO L87 Difference]: Start difference. First operand 218 states and 303 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 23:39:08,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:08,357 INFO L93 Difference]: Finished difference Result 423 states and 597 transitions. [2023-12-19 23:39:08,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 23:39:08,357 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 33 [2023-12-19 23:39:08,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:08,359 INFO L225 Difference]: With dead ends: 423 [2023-12-19 23:39:08,360 INFO L226 Difference]: Without dead ends: 207 [2023-12-19 23:39:08,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:39:08,361 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 63 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:08,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 168 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:08,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-19 23:39:08,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2023-12-19 23:39:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 159 states have internal predecessors, (204), 29 states have call successors, (29), 24 states have call predecessors, (29), 26 states have return successors, (45), 28 states have call predecessors, (45), 29 states have call successors, (45) [2023-12-19 23:39:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 278 transitions. [2023-12-19 23:39:08,384 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 278 transitions. Word has length 33 [2023-12-19 23:39:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:08,385 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 278 transitions. [2023-12-19 23:39:08,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 2 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 23:39:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 278 transitions. [2023-12-19 23:39:08,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-19 23:39:08,386 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:08,386 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:08,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:39:08,386 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:08,386 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:08,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1037087663, now seen corresponding path program 1 times [2023-12-19 23:39:08,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:08,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704577819] [2023-12-19 23:39:08,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:08,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:08,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:39:08,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-19 23:39:08,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,437 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 23:39:08,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:08,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704577819] [2023-12-19 23:39:08,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704577819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:08,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:08,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:39:08,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750819499] [2023-12-19 23:39:08,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:08,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:39:08,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:08,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:39:08,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:39:08,439 INFO L87 Difference]: Start difference. First operand 205 states and 278 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:39:08,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:08,590 INFO L93 Difference]: Finished difference Result 410 states and 560 transitions. [2023-12-19 23:39:08,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:39:08,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2023-12-19 23:39:08,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:08,593 INFO L225 Difference]: With dead ends: 410 [2023-12-19 23:39:08,593 INFO L226 Difference]: Without dead ends: 207 [2023-12-19 23:39:08,593 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:39:08,594 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 113 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:08,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 160 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:08,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-12-19 23:39:08,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 202. [2023-12-19 23:39:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 146 states have (on average 1.3356164383561644) internal successors, (195), 156 states have internal predecessors, (195), 29 states have call successors, (29), 24 states have call predecessors, (29), 26 states have return successors, (45), 28 states have call predecessors, (45), 29 states have call successors, (45) [2023-12-19 23:39:08,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 269 transitions. [2023-12-19 23:39:08,606 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 269 transitions. Word has length 36 [2023-12-19 23:39:08,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:08,607 INFO L495 AbstractCegarLoop]: Abstraction has 202 states and 269 transitions. [2023-12-19 23:39:08,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:39:08,607 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 269 transitions. [2023-12-19 23:39:08,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-19 23:39:08,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:08,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:08,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:39:08,608 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:08,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:08,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1217605442, now seen corresponding path program 1 times [2023-12-19 23:39:08,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:08,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364317624] [2023-12-19 23:39:08,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:08,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:39:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:39:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-12-19 23:39:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,667 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 23:39:08,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:08,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364317624] [2023-12-19 23:39:08,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364317624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:08,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:08,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:39:08,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394134364] [2023-12-19 23:39:08,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:08,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:39:08,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:08,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:39:08,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:08,670 INFO L87 Difference]: Start difference. First operand 202 states and 269 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:39:08,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:08,857 INFO L93 Difference]: Finished difference Result 433 states and 575 transitions. [2023-12-19 23:39:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-19 23:39:08,857 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2023-12-19 23:39:08,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:08,859 INFO L225 Difference]: With dead ends: 433 [2023-12-19 23:39:08,859 INFO L226 Difference]: Without dead ends: 233 [2023-12-19 23:39:08,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:39:08,861 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 164 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:08,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 207 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:08,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-12-19 23:39:08,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 229. [2023-12-19 23:39:08,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 179 states have internal predecessors, (209), 33 states have call successors, (33), 24 states have call predecessors, (33), 30 states have return successors, (45), 32 states have call predecessors, (45), 33 states have call successors, (45) [2023-12-19 23:39:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 287 transitions. [2023-12-19 23:39:08,876 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 287 transitions. Word has length 37 [2023-12-19 23:39:08,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:08,876 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 287 transitions. [2023-12-19 23:39:08,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:39:08,876 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 287 transitions. [2023-12-19 23:39:08,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-19 23:39:08,877 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:08,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:08,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:39:08,877 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:08,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:08,877 INFO L85 PathProgramCache]: Analyzing trace with hash -67188941, now seen corresponding path program 1 times [2023-12-19 23:39:08,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:08,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898304643] [2023-12-19 23:39:08,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:08,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:08,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:39:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:39:08,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:39:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-19 23:39:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:08,933 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 23:39:08,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:08,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898304643] [2023-12-19 23:39:08,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898304643] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:39:08,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:39:08,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-19 23:39:08,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422414629] [2023-12-19 23:39:08,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:39:08,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:39:08,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:08,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:39:08,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-19 23:39:08,934 INFO L87 Difference]: Start difference. First operand 229 states and 287 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:39:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:09,070 INFO L93 Difference]: Finished difference Result 442 states and 556 transitions. [2023-12-19 23:39:09,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-19 23:39:09,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-12-19 23:39:09,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:09,072 INFO L225 Difference]: With dead ends: 442 [2023-12-19 23:39:09,073 INFO L226 Difference]: Without dead ends: 215 [2023-12-19 23:39:09,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:39:09,073 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 98 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:09,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 143 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:09,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-12-19 23:39:09,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-12-19 23:39:09,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 156 states have (on average 1.2564102564102564) internal successors, (196), 169 states have internal predecessors, (196), 31 states have call successors, (31), 23 states have call predecessors, (31), 27 states have return successors, (41), 29 states have call predecessors, (41), 31 states have call successors, (41) [2023-12-19 23:39:09,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 268 transitions. [2023-12-19 23:39:09,087 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 268 transitions. Word has length 40 [2023-12-19 23:39:09,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:09,088 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 268 transitions. [2023-12-19 23:39:09,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:39:09,088 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 268 transitions. [2023-12-19 23:39:09,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-19 23:39:09,088 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:39:09,089 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:09,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 23:39:09,089 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:39:09,089 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:39:09,089 INFO L85 PathProgramCache]: Analyzing trace with hash -563843024, now seen corresponding path program 1 times [2023-12-19 23:39:09,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:39:09,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139677417] [2023-12-19 23:39:09,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:09,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:39:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:39:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:39:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:39:09,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:39:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-12-19 23:39:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-19 23:39:09,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 23:39:09,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:39:09,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139677417] [2023-12-19 23:39:09,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139677417] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:39:09,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622772052] [2023-12-19 23:39:09,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:39:09,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:39:09,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:39:09,309 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 23:39:09,345 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 23:39:09,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:39:09,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 23:39:09,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:39:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-19 23:39:09,484 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:39:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-19 23:39:09,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622772052] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:39:09,656 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:39:09,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 13 [2023-12-19 23:39:09,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480880302] [2023-12-19 23:39:09,656 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:39:09,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-12-19 23:39:09,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:39:09,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-12-19 23:39:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-12-19 23:39:09,657 INFO L87 Difference]: Start difference. First operand 215 states and 268 transitions. Second operand has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-19 23:39:09,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:39:09,885 INFO L93 Difference]: Finished difference Result 465 states and 597 transitions. [2023-12-19 23:39:09,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-19 23:39:09,886 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) Word has length 64 [2023-12-19 23:39:09,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:39:09,886 INFO L225 Difference]: With dead ends: 465 [2023-12-19 23:39:09,886 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:39:09,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 131 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=192, Invalid=360, Unknown=0, NotChecked=0, Total=552 [2023-12-19 23:39:09,887 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 259 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:39:09,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 132 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:39:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:39:09,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:39:09,888 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 23:39:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:39:09,888 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2023-12-19 23:39:09,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:39:09,888 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:39:09,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.538461538461538) internal successors, (72), 10 states have internal predecessors, (72), 6 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 5 states have call predecessors, (16), 6 states have call successors, (16) [2023-12-19 23:39:09,888 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:39:09,888 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:39:09,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:39:09,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 23:39:10,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 23:39:10,098 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:39:10,755 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 555 561) no Hoare annotation was computed. [2023-12-19 23:39:10,755 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 555 561) the Hoare annotation is: true [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L802-1(lines 798 809) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 798 809) the Hoare annotation is: true [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 798 809) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 810 818) the Hoare annotation is: true [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 810 818) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L894(lines 894 900) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 903) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L890-1(lines 875 907) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 534 553) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 605) no Hoare annotation was computed. [2023-12-19 23:39:10,756 INFO L895 garLoopResultBuilder]: At program point L882(line 882) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 0)) (.cse6 (<= ~waterLevel~0 1)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse9)) (.cse1 (and .cse8 .cse6 .cse9 .cse4)) (.cse5 (= ~pumpRunning~0 1)) (.cse2 (= 0 ~systemActive~0)) (.cse3 (< 2 |old(~waterLevel~0)|))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (let ((.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (and .cse6 .cse7 .cse5) (not (= |old(~pumpRunning~0)| 1)) (and .cse8 .cse6 .cse7) .cse2 .cse3))))) [2023-12-19 23:39:10,756 INFO L899 garLoopResultBuilder]: For program point L593(lines 593 610) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L882-1(line 882) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L870(line 870) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L895 garLoopResultBuilder]: At program point L635(line 635) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L635-1(line 635) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L895 garLoopResultBuilder]: At program point L603(line 603) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (and (<= ~waterLevel~0 1) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 1)) (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1))) [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L884(lines 884 904) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 531 554) the Hoare annotation is: (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1 (and .cse2 (= ~pumpRunning~0 1))) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse2) .cse0 .cse1))) [2023-12-19 23:39:10,757 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or (not (= |old(~pumpRunning~0)| 1)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L608-1(lines 589 613) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 542 548) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 531 554) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 782) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 870) no Hoare annotation was computed. [2023-12-19 23:39:10,757 INFO L899 garLoopResultBuilder]: For program point L778-2(lines 774 785) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-12-19 23:39:10,758 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L895 garLoopResultBuilder]: At program point L762(lines 715 763) the Hoare annotation is: false [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L717(lines 716 761) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 757) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-12-19 23:39:10,758 INFO L895 garLoopResultBuilder]: At program point L759(lines 716 761) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2023-12-19 23:39:10,758 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L752(lines 752 756) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L895 garLoopResultBuilder]: At program point L752-2(lines 746 757) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (<= ~waterLevel~0 2))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse1 .cse2 .cse3 (= ~pumpRunning~0 1)))) [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L765(lines 706 769) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= ~waterLevel~0 1) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 2) (= ~pumpRunning~0 1)))) [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L855(lines 855 861) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 563 587) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 851 864) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L895 garLoopResultBuilder]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~4#1| 0) (<= ~waterLevel~0 1)) .cse0))) [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 563 587) no Hoare annotation was computed. [2023-12-19 23:39:10,759 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 579) no Hoare annotation was computed. [2023-12-19 23:39:10,760 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 584) no Hoare annotation was computed. [2023-12-19 23:39:10,760 INFO L899 garLoopResultBuilder]: For program point L695(lines 695 699) no Hoare annotation was computed. [2023-12-19 23:39:10,760 INFO L899 garLoopResultBuilder]: For program point L695-2(lines 695 699) no Hoare annotation was computed. [2023-12-19 23:39:10,760 INFO L895 garLoopResultBuilder]: At program point L582(line 582) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 1 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 1)) .cse0 (= ~pumpRunning~0 1)) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2023-12-19 23:39:10,760 INFO L899 garLoopResultBuilder]: For program point L582-1(lines 563 587) no Hoare annotation was computed. [2023-12-19 23:39:10,760 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 786 797) no Hoare annotation was computed. [2023-12-19 23:39:10,760 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 786 797) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (< 1 |old(~waterLevel~0)|) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 1)) .cse0 .cse1 (< 2 |old(~waterLevel~0)|)))) [2023-12-19 23:39:10,760 INFO L899 garLoopResultBuilder]: For program point L790-1(lines 786 797) no Hoare annotation was computed. [2023-12-19 23:39:10,762 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:39:10,763 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:39:10,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:39:10 BoogieIcfgContainer [2023-12-19 23:39:10,776 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:39:10,777 INFO L158 Benchmark]: Toolchain (without parser) took 5087.87ms. Allocated memory was 217.1MB in the beginning and 261.1MB in the end (delta: 44.0MB). Free memory was 169.0MB in the beginning and 205.3MB in the end (delta: -36.3MB). Peak memory consumption was 120.2MB. Max. memory is 8.0GB. [2023-12-19 23:39:10,777 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 162.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:39:10,777 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.01ms. Allocated memory is still 217.1MB. Free memory was 168.7MB in the beginning and 148.8MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:39:10,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.35ms. Allocated memory is still 217.1MB. Free memory was 148.8MB in the beginning and 146.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:39:10,777 INFO L158 Benchmark]: Boogie Preprocessor took 39.71ms. Allocated memory is still 217.1MB. Free memory was 146.4MB in the beginning and 144.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:39:10,778 INFO L158 Benchmark]: RCFGBuilder took 478.86ms. Allocated memory is still 217.1MB. Free memory was 144.1MB in the beginning and 181.6MB in the end (delta: -37.5MB). Peak memory consumption was 22.3MB. Max. memory is 8.0GB. [2023-12-19 23:39:10,778 INFO L158 Benchmark]: TraceAbstraction took 4184.08ms. Allocated memory was 217.1MB in the beginning and 261.1MB in the end (delta: 44.0MB). Free memory was 181.1MB in the beginning and 205.3MB in the end (delta: -24.2MB). Peak memory consumption was 131.5MB. Max. memory is 8.0GB. [2023-12-19 23:39:10,779 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 162.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 320.01ms. Allocated memory is still 217.1MB. Free memory was 168.7MB in the beginning and 148.8MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.35ms. Allocated memory is still 217.1MB. Free memory was 148.8MB in the beginning and 146.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 39.71ms. Allocated memory is still 217.1MB. Free memory was 146.4MB in the beginning and 144.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 478.86ms. Allocated memory is still 217.1MB. Free memory was 144.1MB in the beginning and 181.6MB in the end (delta: -37.5MB). Peak memory consumption was 22.3MB. Max. memory is 8.0GB. * TraceAbstraction took 4184.08ms. Allocated memory was 217.1MB in the beginning and 261.1MB in the end (delta: 44.0MB). Free memory was 181.1MB in the beginning and 205.3MB in the end (delta: -24.2MB). Peak memory consumption was 131.5MB. 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,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [153] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [519] - GenericResultAtLocation [Line: 705]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [705] - GenericResultAtLocation [Line: 770]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [770] - GenericResultAtLocation [Line: 865]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [865] - GenericResultAtLocation [Line: 874]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [874] - GenericResultAtLocation [Line: 908]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [908] * 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: 870]: 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, 68 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1048 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1016 mSDsluCounter, 1629 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1031 mSDsCounter, 307 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1323 IncrementalHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 307 mSolverCounterUnsat, 598 mSDtfsCounter, 1323 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 272 GetRequests, 196 SyntacticMatches, 6 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=229occurred in iteration=9, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 522 PreInvPairs, 570 NumberOfFragments, 480 HoareAnnotationTreeSize, 522 FormulaSimplifications, 182 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 863 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 424 NumberOfCodeBlocks, 424 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 959 SizeOfPredicates, 3 NumberOfNonLiveVariables, 261 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 46/68 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: 716]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (tmp == 1)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((tmp == 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (pumpRunning == 1))) - InvariantResult [Line: 715]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-19 23:39:10,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...