/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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:55:52,607 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:55:52,644 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:55:52,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:55:52,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:55:52,661 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:55:52,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:55:52,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:55:52,662 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:55:52,662 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:55:52,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:55:52,663 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:55:52,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:55:52,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:55:52,664 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:55:52,664 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:55:52,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:55:52,664 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:55:52,665 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:55:52,665 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:55:52,665 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:55:52,666 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:55:52,666 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:55:52,666 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:55:52,666 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:55:52,666 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:55:52,667 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:55:52,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:55:52,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:55:52,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:55:52,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:55:52,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:55:52,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:55:52,668 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:55:52,668 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:55:52,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:55:52,669 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:55:52,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:55:52,669 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:55:52,669 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:55:52,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:55:52,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:55:52,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:55:52,670 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:55:52,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:55:52,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:55:52,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:55:52,891 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:55:52,892 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:55:52,892 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2023-12-15 22:55:53,913 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:55:54,128 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:55:54,128 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2023-12-15 22:55:54,137 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1ee1913/c8c9b2c02b294575825afd50b2f9c9e7/FLAG0f4dd0bc8 [2023-12-15 22:55:54,149 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b1ee1913/c8c9b2c02b294575825afd50b2f9c9e7 [2023-12-15 22:55:54,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:55:54,151 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:55:54,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:55:54,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:55:54,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:55:54,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b9826e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54, skipping insertion in model container [2023-12-15 22:55:54,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,196 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:55:54,404 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_product12.cil.c[17359,17372] [2023-12-15 22:55:54,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:55:54,422 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:55:54,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2023-12-15 22:55:54,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] [2023-12-15 22:55:54,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [162] [2023-12-15 22:55:54,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [315] [2023-12-15 22:55:54,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [395] [2023-12-15 22:55:54,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [433] [2023-12-15 22:55:54,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [799] [2023-12-15 22:55:54,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [895] [2023-12-15 22:55:54,501 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_product12.cil.c[17359,17372] [2023-12-15 22:55:54,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:55:54,524 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:55:54,524 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54 WrapperNode [2023-12-15 22:55:54,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:55:54,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:55:54,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:55:54,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:55:54,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,542 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,558 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 22, calls inlined = 17, statements flattened = 149 [2023-12-15 22:55:54,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:55:54,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:55:54,559 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:55:54,559 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:55:54,567 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,569 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,578 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]. [2023-12-15 22:55:54,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,582 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,596 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:55:54,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:55:54,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:55:54,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:55:54,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (1/1) ... [2023-12-15 22:55:54,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:55:54,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:54,653 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) [2023-12-15 22:55:54,672 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 [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:55:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:55:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:55:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:55:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:55:54,678 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:55:54,678 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:55:54,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:55:54,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:55:54,749 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:55:54,751 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:55:54,922 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:55:54,966 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:55:54,967 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:55:54,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:55:54 BoogieIcfgContainer [2023-12-15 22:55:54,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:55:54,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:55:54,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:55:54,971 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:55:54,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:55:54" (1/3) ... [2023-12-15 22:55:54,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455e207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:55:54, skipping insertion in model container [2023-12-15 22:55:54,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:54" (2/3) ... [2023-12-15 22:55:54,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5455e207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:55:54, skipping insertion in model container [2023-12-15 22:55:54,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:55:54" (3/3) ... [2023-12-15 22:55:54,973 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2023-12-15 22:55:54,985 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:55:54,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:55:55,015 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:55:55,020 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;@6f3aad8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:55:55,020 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:55:55,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 40 states have internal predecessors, (57), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-15 22:55:55,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:55:55,028 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:55,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:55,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:55,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:55,037 INFO L85 PathProgramCache]: Analyzing trace with hash 256513970, now seen corresponding path program 1 times [2023-12-15 22:55:55,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:55,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219154154] [2023-12-15 22:55:55,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:55,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:55,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:55,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:55,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219154154] [2023-12-15 22:55:55,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219154154] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:55,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:55,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:55:55,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015106034] [2023-12-15 22:55:55,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:55,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:55:55,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:55,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:55:55,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:55:55,212 INFO L87 Difference]: Start difference. First operand has 50 states, 36 states have (on average 1.5833333333333333) internal successors, (57), 40 states have internal predecessors, (57), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) 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) [2023-12-15 22:55:55,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:55,257 INFO L93 Difference]: Finished difference Result 98 states and 143 transitions. [2023-12-15 22:55:55,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:55:55,259 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 [2023-12-15 22:55:55,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:55,264 INFO L225 Difference]: With dead ends: 98 [2023-12-15 22:55:55,264 INFO L226 Difference]: Without dead ends: 45 [2023-12-15 22:55:55,266 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 [2023-12-15 22:55:55,269 INFO L413 NwaCegarLoop]: 52 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, 52 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 [2023-12-15 22:55:55,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-12-15 22:55:55,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2023-12-15 22:55:55,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 36 states have internal predecessors, (47), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-15 22:55:55,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2023-12-15 22:55:55,296 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 17 [2023-12-15 22:55:55,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:55,296 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2023-12-15 22:55:55,296 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) [2023-12-15 22:55:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2023-12-15 22:55:55,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:55:55,298 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:55,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:55,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:55:55,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:55,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:55,299 INFO L85 PathProgramCache]: Analyzing trace with hash 62107344, now seen corresponding path program 1 times [2023-12-15 22:55:55,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:55,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222932529] [2023-12-15 22:55:55,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:55,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:55:55,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:55,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:55,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222932529] [2023-12-15 22:55:55,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222932529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:55,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:55,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:55:55,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175497248] [2023-12-15 22:55:55,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:55,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:55,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:55,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:55,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:55,367 INFO L87 Difference]: Start difference. First operand 45 states and 60 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) [2023-12-15 22:55:55,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:55,387 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2023-12-15 22:55:55,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:55,388 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 [2023-12-15 22:55:55,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:55,389 INFO L225 Difference]: With dead ends: 61 [2023-12-15 22:55:55,389 INFO L226 Difference]: Without dead ends: 37 [2023-12-15 22:55:55,389 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 [2023-12-15 22:55:55,390 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:55,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 62 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:55,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-12-15 22:55:55,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-12-15 22:55:55,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 31 states have internal predecessors, (41), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-15 22:55:55,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2023-12-15 22:55:55,395 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 18 [2023-12-15 22:55:55,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:55,395 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2023-12-15 22:55:55,395 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) [2023-12-15 22:55:55,395 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2023-12-15 22:55:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:55:55,396 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:55,396 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] [2023-12-15 22:55:55,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:55:55,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:55,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:55,397 INFO L85 PathProgramCache]: Analyzing trace with hash 79002187, now seen corresponding path program 1 times [2023-12-15 22:55:55,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:55,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751548858] [2023-12-15 22:55:55,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:55,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:55,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751548858] [2023-12-15 22:55:55,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751548858] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:55,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:55,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:55:55,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668581130] [2023-12-15 22:55:55,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:55,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:55,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:55,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:55,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:55:55,543 INFO L87 Difference]: Start difference. First operand 37 states and 49 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) [2023-12-15 22:55:55,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:55,641 INFO L93 Difference]: Finished difference Result 107 states and 145 transitions. [2023-12-15 22:55:55,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:55:55,641 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 [2023-12-15 22:55:55,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:55,645 INFO L225 Difference]: With dead ends: 107 [2023-12-15 22:55:55,645 INFO L226 Difference]: Without dead ends: 72 [2023-12-15 22:55:55,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:55,650 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 73 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:55,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 96 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:55:55,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-15 22:55:55,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 68. [2023-12-15 22:55:55,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 51 states have (on average 1.4705882352941178) internal successors, (75), 56 states have internal predecessors, (75), 8 states have call successors, (8), 8 states have call predecessors, (8), 8 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2023-12-15 22:55:55,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 92 transitions. [2023-12-15 22:55:55,661 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 92 transitions. Word has length 21 [2023-12-15 22:55:55,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:55,661 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 92 transitions. [2023-12-15 22:55:55,661 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) [2023-12-15 22:55:55,661 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 92 transitions. [2023-12-15 22:55:55,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:55:55,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:55,662 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] [2023-12-15 22:55:55,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:55:55,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:55,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:55,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1452801529, now seen corresponding path program 1 times [2023-12-15 22:55:55,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:55,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596923142] [2023-12-15 22:55:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:55,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:55,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:55,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:55,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:55,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596923142] [2023-12-15 22:55:55,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596923142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:55,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:55,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:55:55,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627256312] [2023-12-15 22:55:55,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:55,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:55,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:55,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:55,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:55:55,738 INFO L87 Difference]: Start difference. First operand 68 states and 92 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:55,823 INFO L93 Difference]: Finished difference Result 192 states and 273 transitions. [2023-12-15 22:55:55,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:55:55,825 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-15 22:55:55,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:55,827 INFO L225 Difference]: With dead ends: 192 [2023-12-15 22:55:55,827 INFO L226 Difference]: Without dead ends: 126 [2023-12-15 22:55:55,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:55,828 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:55,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 103 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:55,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-15 22:55:55,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2023-12-15 22:55:55,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 100 states have internal predecessors, (133), 16 states have call successors, (16), 16 states have call predecessors, (16), 14 states have return successors, (21), 14 states have call predecessors, (21), 16 states have call successors, (21) [2023-12-15 22:55:55,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2023-12-15 22:55:55,844 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 170 transitions. Word has length 21 [2023-12-15 22:55:55,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:55,844 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 170 transitions. [2023-12-15 22:55:55,844 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), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:55,845 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 170 transitions. [2023-12-15 22:55:55,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-15 22:55:55,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:55,846 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] [2023-12-15 22:55:55,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:55:55,846 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:55,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:55,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1551157267, now seen corresponding path program 1 times [2023-12-15 22:55:55,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:55,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217122796] [2023-12-15 22:55:55,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:55,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:55,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 22:55:55,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-15 22:55:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-15 22:55:55,905 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-15 22:55:55,905 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-15 22:55:55,906 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:55:55,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:55:55,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-15 22:55:55,912 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:55:55,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:55:55 BoogieIcfgContainer [2023-12-15 22:55:55,943 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:55:55,943 INFO L158 Benchmark]: Toolchain (without parser) took 1792.00ms. Allocated memory is still 246.4MB. Free memory was 203.7MB in the beginning and 177.7MB in the end (delta: 26.0MB). Peak memory consumption was 26.6MB. Max. memory is 8.0GB. [2023-12-15 22:55:55,943 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 159.4MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:55:55,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.90ms. Allocated memory is still 246.4MB. Free memory was 203.3MB in the beginning and 184.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-12-15 22:55:55,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.60ms. Allocated memory is still 246.4MB. Free memory was 184.4MB in the beginning and 182.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:55,944 INFO L158 Benchmark]: Boogie Preprocessor took 37.05ms. Allocated memory is still 246.4MB. Free memory was 182.3MB in the beginning and 180.2MB in the end (delta: 2.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:55,944 INFO L158 Benchmark]: RCFGBuilder took 370.31ms. Allocated memory is still 246.4MB. Free memory was 180.2MB in the beginning and 161.3MB in the end (delta: 18.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-15 22:55:55,945 INFO L158 Benchmark]: TraceAbstraction took 974.02ms. Allocated memory is still 246.4MB. Free memory was 160.3MB in the beginning and 177.7MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:55:55,946 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 159.4MB. Free memory is still 106.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 374.90ms. Allocated memory is still 246.4MB. Free memory was 203.3MB in the beginning and 184.4MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.60ms. Allocated memory is still 246.4MB. Free memory was 184.4MB in the beginning and 182.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.05ms. Allocated memory is still 246.4MB. Free memory was 182.3MB in the beginning and 180.2MB in the end (delta: 2.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 370.31ms. Allocated memory is still 246.4MB. Free memory was 180.2MB in the beginning and 161.3MB in the end (delta: 18.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 974.02ms. Allocated memory is still 246.4MB. Free memory was 160.3MB in the beginning and 177.7MB in the end (delta: -17.4MB). There was no memory consumed. 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,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [87] - GenericResultAtLocation [Line: 162]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [162] - GenericResultAtLocation [Line: 315]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [315] - GenericResultAtLocation [Line: 395]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [395] - GenericResultAtLocation [Line: 433]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [433] - GenericResultAtLocation [Line: 799]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [799] - GenericResultAtLocation [Line: 895]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [895] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 900]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L168] int pumpRunning = 0; [L169] int systemActive = 1; [L316] int waterLevel = 1; [L317] int methaneLevelCritical = 0; [L603] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L800] int cleanupTimeShifts = 4; [L873] int retValue_acc ; [L874] int tmp ; [L878] FCALL select_helpers() [L879] FCALL select_features() [L880] CALL, EXPR valid_product() [L425] int retValue_acc ; [L428] retValue_acc = 1 [L429] return (retValue_acc); [L880] RET, EXPR valid_product() [L880] tmp = valid_product() [L882] COND TRUE \read(tmp) [L884] FCALL setup() [L885] CALL runTest() [L867] CALL test() [L95] int splverifierCounter ; [L96] int tmp ; [L97] int tmp___0 ; [L98] int tmp___1 ; [L99] int tmp___2 ; [L102] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L104] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L106] COND TRUE splverifierCounter < 4 [L112] tmp = __VERIFIER_nondet_int() [L114] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L116] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L334] COND TRUE waterLevel < 2 [L335] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L116] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L122] tmp___0 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L132] tmp___2 = __VERIFIER_nondet_int() [L134] COND TRUE \read(tmp___2) [L136] CALL startSystem() [L311] systemActive = 1 [L136] RET startSystem() [L151] CALL timeShift() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L175] COND FALSE !(\read(pumpRunning)) VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L182] COND TRUE \read(systemActive) [L184] FCALL processEnvironment() [L190] CALL __utac_acc__Specification3_spec__1() [L55] int tmp ; [L56] int tmp___0 ; [L57] int tmp___1 ; VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] CALL, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L355] int retValue_acc ; [L358] retValue_acc = methaneLevelCritical [L359] return (retValue_acc); [L61] RET, EXPR isMethaneLevelCritical() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L61] tmp = isMethaneLevelCritical() [L63] COND FALSE !(\read(tmp)) [L67] CALL, EXPR getWaterLevel() [L387] int retValue_acc ; [L390] retValue_acc = waterLevel [L391] return (retValue_acc); [L67] RET, EXPR getWaterLevel() [L67] tmp___0 = getWaterLevel() [L69] COND TRUE tmp___0 == 2 [L71] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L71] RET, EXPR isPumpRunning() [L71] tmp___1 = isPumpRunning() [L73] COND FALSE !(\read(tmp___1)) [L77] CALL __automaton_fail() [L900] reach_error() VAL [\old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 160 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=124occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 102 NumberOfCodeBlocks, 102 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 73 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-15 22:55:55,983 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...