/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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:56:07,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:56:07,470 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 22:56:07,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:56:07,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:56:07,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:56:07,517 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:56:07,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:56:07,517 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:56:07,517 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:56:07,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:56:07,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:56:07,518 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:56:07,518 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:56:07,519 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:56:07,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:56:07,519 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:56:07,519 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:56:07,520 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:56:07,520 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:56:07,520 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:56:07,520 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:56:07,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:56:07,521 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:56:07,521 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:56:07,521 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:56:07,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:56:07,522 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:56:07,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:56:07,522 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:56:07,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:56:07,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:56:07,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:07,523 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:56:07,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:56:07,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:56:07,523 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:56:07,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:56:07,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:56:07,524 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:56:07,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:56:07,524 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:56:07,525 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:56:07,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:56:07,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:56:07,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:56:07,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:56:07,737 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:56:07,737 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:56:07,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2023-12-15 22:56:08,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:56:09,019 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:56:09,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product41.cil.c [2023-12-15 22:56:09,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9f238a4/9b7a6811b4344e038f14e61439793a6f/FLAGd563fdd06 [2023-12-15 22:56:09,042 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df9f238a4/9b7a6811b4344e038f14e61439793a6f [2023-12-15 22:56:09,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:56:09,044 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:56:09,045 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:09,045 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:56:09,050 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:56:09,051 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,052 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1382fcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09, skipping insertion in model container [2023-12-15 22:56:09,052 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:56:09,273 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_product41.cil.c[17978,17991] [2023-12-15 22:56:09,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:09,291 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:56:09,297 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-15 22:56:09,299 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] [2023-12-15 22:56:09,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] [2023-12-15 22:56:09,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] [2023-12-15 22:56:09,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] [2023-12-15 22:56:09,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] [2023-12-15 22:56:09,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] [2023-12-15 22:56:09,303 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] [2023-12-15 22:56:09,353 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_product41.cil.c[17978,17991] [2023-12-15 22:56:09,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:56:09,367 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:56:09,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09 WrapperNode [2023-12-15 22:56:09,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:56:09,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:09,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:56:09,369 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:56:09,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,432 INFO L138 Inliner]: procedures = 53, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 193 [2023-12-15 22:56:09,433 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:56:09,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:56:09,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:56:09,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:56:09,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,446 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,457 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 22:56:09,457 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,457 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,460 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,463 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,464 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,465 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:56:09,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:56:09,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:56:09,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:56:09,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (1/1) ... [2023-12-15 22:56:09,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:56:09,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:09,514 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 22:56:09,560 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 22:56:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:56:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:56:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:56:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:56:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:56:09,568 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:56:09,568 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:56:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:56:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:56:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:56:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:56:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:56:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:56:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:56:09,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:56:09,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:56:09,624 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:56:09,626 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:56:09,807 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:56:09,858 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:56:09,862 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:56:09,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:09 BoogieIcfgContainer [2023-12-15 22:56:09,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:56:09,864 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:56:09,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:56:09,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:56:09,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:56:09" (1/3) ... [2023-12-15 22:56:09,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1da91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:09, skipping insertion in model container [2023-12-15 22:56:09,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:56:09" (2/3) ... [2023-12-15 22:56:09,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c1da91d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:56:09, skipping insertion in model container [2023-12-15 22:56:09,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:56:09" (3/3) ... [2023-12-15 22:56:09,869 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2023-12-15 22:56:09,881 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:56:09,881 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:56:09,913 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:56:09,917 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;@4c3b871a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:56:09,918 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:56:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-12-15 22:56:09,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:56:09,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:09,939 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 22:56:09,940 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:09,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:09,944 INFO L85 PathProgramCache]: Analyzing trace with hash 225823669, now seen corresponding path program 1 times [2023-12-15 22:56:09,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:09,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139978719] [2023-12-15 22:56:09,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:09,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:56:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,086 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 22:56:10,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:10,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139978719] [2023-12-15 22:56:10,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139978719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:10,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:10,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:56:10,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097544300] [2023-12-15 22:56:10,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:10,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:56:10,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:10,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:56:10,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:56:10,113 INFO L87 Difference]: Start difference. First operand has 63 states, 45 states have (on average 1.5555555555555556) internal successors, (70), 51 states have internal predecessors, (70), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) 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 22:56:10,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:10,168 INFO L93 Difference]: Finished difference Result 124 states and 181 transitions. [2023-12-15 22:56:10,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:56:10,170 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 22:56:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:10,176 INFO L225 Difference]: With dead ends: 124 [2023-12-15 22:56:10,176 INFO L226 Difference]: Without dead ends: 58 [2023-12-15 22:56:10,178 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 22:56:10,181 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:10,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:10,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-15 22:56:10,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-15 22:56:10,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 47 states have internal predecessors, (60), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-15 22:56:10,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-12-15 22:56:10,209 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 17 [2023-12-15 22:56:10,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:10,210 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-12-15 22:56:10,210 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 22:56:10,210 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-12-15 22:56:10,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:56:10,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:10,211 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 22:56:10,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:56:10,212 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:10,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:10,213 INFO L85 PathProgramCache]: Analyzing trace with hash -438802985, now seen corresponding path program 1 times [2023-12-15 22:56:10,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:10,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653937981] [2023-12-15 22:56:10,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:10,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:56:10,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,278 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 22:56:10,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:10,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653937981] [2023-12-15 22:56:10,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653937981] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:10,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:10,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:10,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126364030] [2023-12-15 22:56:10,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:10,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:10,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:10,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:10,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:10,281 INFO L87 Difference]: Start difference. First operand 58 states and 79 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 22:56:10,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:10,317 INFO L93 Difference]: Finished difference Result 89 states and 121 transitions. [2023-12-15 22:56:10,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:10,319 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 22:56:10,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:10,320 INFO L225 Difference]: With dead ends: 89 [2023-12-15 22:56:10,320 INFO L226 Difference]: Without dead ends: 50 [2023-12-15 22:56:10,320 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 22:56:10,321 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:10,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 102 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:10,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-15 22:56:10,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-15 22:56:10,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 42 states have internal predecessors, (54), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-15 22:56:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 68 transitions. [2023-12-15 22:56:10,327 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 68 transitions. Word has length 18 [2023-12-15 22:56:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:10,327 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 68 transitions. [2023-12-15 22:56:10,327 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 22:56:10,327 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 68 transitions. [2023-12-15 22:56:10,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:56:10,331 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:10,331 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 22:56:10,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:56:10,332 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:10,332 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:10,332 INFO L85 PathProgramCache]: Analyzing trace with hash -1374327041, now seen corresponding path program 1 times [2023-12-15 22:56:10,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:10,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964186684] [2023-12-15 22:56:10,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:10,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:10,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,401 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 22:56:10,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:10,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964186684] [2023-12-15 22:56:10,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964186684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:10,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:10,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:10,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319108310] [2023-12-15 22:56:10,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:10,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:10,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:10,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:10,403 INFO L87 Difference]: Start difference. First operand 50 states and 68 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:56:10,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:10,421 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2023-12-15 22:56:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:10,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:56:10,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:10,422 INFO L225 Difference]: With dead ends: 98 [2023-12-15 22:56:10,423 INFO L226 Difference]: Without dead ends: 50 [2023-12-15 22:56:10,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 22:56:10,424 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 56 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:10,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 56 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:10,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-12-15 22:56:10,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2023-12-15 22:56:10,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 42 states have internal predecessors, (53), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-15 22:56:10,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2023-12-15 22:56:10,430 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 21 [2023-12-15 22:56:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:10,430 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2023-12-15 22:56:10,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 22:56:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2023-12-15 22:56:10,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-15 22:56:10,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:10,431 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] [2023-12-15 22:56:10,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:56:10,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:10,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:10,432 INFO L85 PathProgramCache]: Analyzing trace with hash -435334036, now seen corresponding path program 1 times [2023-12-15 22:56:10,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:10,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579109895] [2023-12-15 22:56:10,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:10,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:56:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:56:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,479 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 22:56:10,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:10,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579109895] [2023-12-15 22:56:10,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579109895] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:10,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:10,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:56:10,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615677889] [2023-12-15 22:56:10,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:10,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:56:10,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:10,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:56:10,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:56:10,481 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-15 22:56:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:10,513 INFO L93 Difference]: Finished difference Result 134 states and 181 transitions. [2023-12-15 22:56:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:56:10,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 26 [2023-12-15 22:56:10,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:10,517 INFO L225 Difference]: With dead ends: 134 [2023-12-15 22:56:10,517 INFO L226 Difference]: Without dead ends: 86 [2023-12-15 22:56:10,518 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 [2023-12-15 22:56:10,519 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 57 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:10,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 104 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2023-12-15 22:56:10,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 84. [2023-12-15 22:56:10,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 62 states have (on average 1.403225806451613) internal successors, (87), 69 states have internal predecessors, (87), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2023-12-15 22:56:10,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2023-12-15 22:56:10,529 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 26 [2023-12-15 22:56:10,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:10,530 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2023-12-15 22:56:10,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-12-15 22:56:10,530 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2023-12-15 22:56:10,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-15 22:56:10,531 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:10,531 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] [2023-12-15 22:56:10,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:56:10,531 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:10,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:10,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1966722297, now seen corresponding path program 1 times [2023-12-15 22:56:10,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:10,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94192658] [2023-12-15 22:56:10,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:10,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:10,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:56:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-15 22:56:10,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,589 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 22:56:10,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:10,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94192658] [2023-12-15 22:56:10,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94192658] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:10,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:10,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:56:10,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828209507] [2023-12-15 22:56:10,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:10,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:56:10,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:10,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:56:10,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:56:10,591 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-15 22:56:10,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:10,665 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2023-12-15 22:56:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:56:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 31 [2023-12-15 22:56:10,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:10,669 INFO L225 Difference]: With dead ends: 242 [2023-12-15 22:56:10,669 INFO L226 Difference]: Without dead ends: 160 [2023-12-15 22:56:10,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 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 22:56:10,677 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 48 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:10,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 154 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:56:10,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-15 22:56:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2023-12-15 22:56:10,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 117 states have (on average 1.3675213675213675) internal successors, (160), 128 states have internal predecessors, (160), 22 states have call successors, (22), 20 states have call predecessors, (22), 18 states have return successors, (30), 20 states have call predecessors, (30), 22 states have call successors, (30) [2023-12-15 22:56:10,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 212 transitions. [2023-12-15 22:56:10,704 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 212 transitions. Word has length 31 [2023-12-15 22:56:10,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:10,704 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 212 transitions. [2023-12-15 22:56:10,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-12-15 22:56:10,704 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 212 transitions. [2023-12-15 22:56:10,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-15 22:56:10,705 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:10,705 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] [2023-12-15 22:56:10,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:56:10,706 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:10,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:10,706 INFO L85 PathProgramCache]: Analyzing trace with hash -802325487, now seen corresponding path program 1 times [2023-12-15 22:56:10,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:10,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172153207] [2023-12-15 22:56:10,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:10,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:56:10,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:56:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:10,772 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 22:56:10,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:10,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172153207] [2023-12-15 22:56:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172153207] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:10,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:10,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:56:10,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368866738] [2023-12-15 22:56:10,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:10,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:10,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:10,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:10,776 INFO L87 Difference]: Start difference. First operand 158 states and 212 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:10,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:10,939 INFO L93 Difference]: Finished difference Result 393 states and 534 transitions. [2023-12-15 22:56:10,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:56:10,940 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-12-15 22:56:10,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:10,944 INFO L225 Difference]: With dead ends: 393 [2023-12-15 22:56:10,945 INFO L226 Difference]: Without dead ends: 237 [2023-12-15 22:56:10,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:56:10,954 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 77 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:10,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 211 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:10,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-12-15 22:56:10,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 222. [2023-12-15 22:56:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 166 states have (on average 1.3433734939759037) internal successors, (223), 186 states have internal predecessors, (223), 31 states have call successors, (31), 20 states have call predecessors, (31), 24 states have return successors, (47), 29 states have call predecessors, (47), 31 states have call successors, (47) [2023-12-15 22:56:10,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 301 transitions. [2023-12-15 22:56:10,991 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 301 transitions. Word has length 35 [2023-12-15 22:56:10,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:10,991 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 301 transitions. [2023-12-15 22:56:10,991 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, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:10,991 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 301 transitions. [2023-12-15 22:56:10,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-15 22:56:10,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:10,997 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] [2023-12-15 22:56:10,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:56:10,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:10,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:10,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1823393841, now seen corresponding path program 1 times [2023-12-15 22:56:10,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:10,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997597783] [2023-12-15 22:56:10,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:10,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:56:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-12-15 22:56:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,073 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 22:56:11,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:11,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997597783] [2023-12-15 22:56:11,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997597783] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:11,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:11,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:56:11,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491790179] [2023-12-15 22:56:11,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:11,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:11,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:11,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:56:11,074 INFO L87 Difference]: Start difference. First operand 222 states and 301 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:11,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:11,204 INFO L93 Difference]: Finished difference Result 449 states and 616 transitions. [2023-12-15 22:56:11,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:56:11,204 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-12-15 22:56:11,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:11,206 INFO L225 Difference]: With dead ends: 449 [2023-12-15 22:56:11,206 INFO L226 Difference]: Without dead ends: 229 [2023-12-15 22:56:11,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:56:11,208 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 119 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:11,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 165 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:11,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2023-12-15 22:56:11,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 222. [2023-12-15 22:56:11,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 169 states have (on average 1.3254437869822486) internal successors, (224), 187 states have internal predecessors, (224), 29 states have call successors, (29), 19 states have call predecessors, (29), 23 states have return successors, (45), 27 states have call predecessors, (45), 29 states have call successors, (45) [2023-12-15 22:56:11,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 298 transitions. [2023-12-15 22:56:11,226 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 298 transitions. Word has length 35 [2023-12-15 22:56:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:11,226 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 298 transitions. [2023-12-15 22:56:11,226 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, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:11,226 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 298 transitions. [2023-12-15 22:56:11,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:56:11,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:11,227 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:11,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:56:11,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:11,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:11,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1474385726, now seen corresponding path program 1 times [2023-12-15 22:56:11,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:11,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491630572] [2023-12-15 22:56:11,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:11,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:11,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:56:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:56:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:56:11,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:11,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491630572] [2023-12-15 22:56:11,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491630572] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:56:11,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339957400] [2023-12-15 22:56:11,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:11,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:56:11,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:56:11,372 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) [2023-12-15 22:56:11,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:56:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,448 INFO L262 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-15 22:56:11,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:56:11,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:56:11,518 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:56:11,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339957400] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:11,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:56:11,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2023-12-15 22:56:11,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219519879] [2023-12-15 22:56:11,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:11,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:56:11,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:11,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:56:11,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:56:11,524 INFO L87 Difference]: Start difference. First operand 222 states and 298 transitions. Second operand has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:11,617 INFO L93 Difference]: Finished difference Result 633 states and 866 transitions. [2023-12-15 22:56:11,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:56:11,617 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-15 22:56:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:11,621 INFO L225 Difference]: With dead ends: 633 [2023-12-15 22:56:11,621 INFO L226 Difference]: Without dead ends: 413 [2023-12-15 22:56:11,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:56:11,622 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:11,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 269 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:11,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2023-12-15 22:56:11,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 411. [2023-12-15 22:56:11,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 312 states have (on average 1.3012820512820513) internal successors, (406), 342 states have internal predecessors, (406), 55 states have call successors, (55), 37 states have call predecessors, (55), 43 states have return successors, (87), 51 states have call predecessors, (87), 55 states have call successors, (87) [2023-12-15 22:56:11,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 548 transitions. [2023-12-15 22:56:11,655 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 548 transitions. Word has length 38 [2023-12-15 22:56:11,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:11,655 INFO L495 AbstractCegarLoop]: Abstraction has 411 states and 548 transitions. [2023-12-15 22:56:11,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:11,655 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 548 transitions. [2023-12-15 22:56:11,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:56:11,656 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:11,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:11,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:56:11,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:56:11,862 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:11,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:11,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1740814692, now seen corresponding path program 1 times [2023-12-15 22:56:11,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:11,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773478140] [2023-12-15 22:56:11,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:11,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:11,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 22:56:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-12-15 22:56:11,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:56:11,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:11,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773478140] [2023-12-15 22:56:11,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773478140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:11,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:11,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:56:11,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786892347] [2023-12-15 22:56:11,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:11,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:56:11,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:11,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:56:11,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:56:11,928 INFO L87 Difference]: Start difference. First operand 411 states and 548 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:12,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:12,069 INFO L93 Difference]: Finished difference Result 755 states and 1018 transitions. [2023-12-15 22:56:12,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:56:12,070 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-15 22:56:12,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:12,072 INFO L225 Difference]: With dead ends: 755 [2023-12-15 22:56:12,072 INFO L226 Difference]: Without dead ends: 140 [2023-12-15 22:56:12,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:56:12,075 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 93 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:12,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 203 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:56:12,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2023-12-15 22:56:12,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 132. [2023-12-15 22:56:12,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 99 states have (on average 1.2424242424242424) internal successors, (123), 107 states have internal predecessors, (123), 17 states have call successors, (17), 15 states have call predecessors, (17), 15 states have return successors, (21), 15 states have call predecessors, (21), 17 states have call successors, (21) [2023-12-15 22:56:12,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 161 transitions. [2023-12-15 22:56:12,085 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 161 transitions. Word has length 38 [2023-12-15 22:56:12,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:12,085 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 161 transitions. [2023-12-15 22:56:12,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:56:12,085 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 161 transitions. [2023-12-15 22:56:12,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-15 22:56:12,086 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:56:12,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:12,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:56:12,086 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:56:12,086 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:56:12,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1154635206, now seen corresponding path program 1 times [2023-12-15 22:56:12,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:56:12,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316739635] [2023-12-15 22:56:12,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:56:12,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:56:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:12,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:56:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:12,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:56:12,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:12,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-15 22:56:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:12,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-15 22:56:12,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:56:12,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:56:12,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:56:12,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316739635] [2023-12-15 22:56:12,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316739635] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:56:12,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:56:12,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-15 22:56:12,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725643765] [2023-12-15 22:56:12,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:56:12,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 22:56:12,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:56:12,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 22:56:12,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:56:12,228 INFO L87 Difference]: Start difference. First operand 132 states and 161 transitions. Second operand has 11 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:12,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:56:12,500 INFO L93 Difference]: Finished difference Result 258 states and 318 transitions. [2023-12-15 22:56:12,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 22:56:12,500 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-12-15 22:56:12,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:56:12,501 INFO L225 Difference]: With dead ends: 258 [2023-12-15 22:56:12,501 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:56:12,501 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=365, Unknown=0, NotChecked=0, Total=506 [2023-12-15 22:56:12,502 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 195 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:56:12,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 181 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:56:12,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:56:12,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:56:12,502 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) [2023-12-15 22:56:12,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:56:12,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2023-12-15 22:56:12,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:56:12,503 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:56:12,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.3) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:56:12,503 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:56:12,503 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:56:12,508 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:56:12,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 22:56:12,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:56:13,285 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 125 131) no Hoare annotation was computed. [2023-12-15 22:56:13,285 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 125 131) the Hoare annotation is: true [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point L402-1(lines 398 409) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 398 409) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~pumpRunning~0 1))) (or .cse0 .cse3 .cse1 .cse2) (or .cse3 .cse2 (= ~methaneLevelCritical~0 1) (not (= |old(~methaneLevelCritical~0)| 1))))) [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 398 409) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 485) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L902 garLoopResultBuilder]: At program point L481-1(lines 481 485) the Hoare annotation is: true [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 467 496) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L902 garLoopResultBuilder]: At program point L477-2(lines 477 491) the Hoare annotation is: true [2023-12-15 22:56:13,286 INFO L902 garLoopResultBuilder]: At program point L473(line 473) the Hoare annotation is: true [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point L473-1(line 473) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point L492(lines 467 496) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 467 496) the Hoare annotation is: true [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2023-12-15 22:56:13,286 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 410 418) the Hoare annotation is: true [2023-12-15 22:56:13,286 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 410 418) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L353(lines 353 366) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L353-1(lines 338 370) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 382) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L895 garLoopResultBuilder]: At program point L345(line 345) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 1)) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (<= ~waterLevel~0 1)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (and .cse7 .cse3 .cse9)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (and .cse3 .cse9 .cse2))) (and (or .cse0 .cse1 .cse2) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse3 .cse1) (or .cse4 .cse5 .cse0 .cse6 (not (= ~methaneLevelCritical~0 0))) (let ((.cse8 (= |timeShift_isHighWaterSensorDry_#res#1| 0))) (or .cse4 .cse5 .cse0 .cse6 (not (= ~methaneLevelCritical~0 1)) (and .cse7 .cse8 .cse9) (and .cse8 .cse9 .cse2)))))) [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L378-2(lines 374 385) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L345-1(line 345) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L895 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (let ((.cse0 (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 1) (= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1))) (or .cse2 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2023-12-15 22:56:13,287 INFO L895 garLoopResultBuilder]: At program point L197(line 197) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse4 (not (= |timeShift_processEnvironment_~tmp~0#1| 0))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and .cse3 (<= ~waterLevel~0 1) .cse4 .cse5))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse1 (not (= |old(~pumpRunning~0)| 1))) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2 (and .cse3 .cse4 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse5))))) [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L197-1(line 197) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point L932(line 932) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 451 464) no Hoare annotation was computed. [2023-12-15 22:56:13,287 INFO L895 garLoopResultBuilder]: At program point L152(line 152) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1))) (or .cse1 .cse2 (= ~pumpRunning~0 1)) (or (< 1 |old(~waterLevel~0)|) .cse1 (<= ~waterLevel~0 1) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L152-1(lines 133 157) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 367) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 112 118) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L174(lines 174 180) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L141(lines 141 149) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L174-2(lines 167 183) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 101 124) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and (= ~pumpRunning~0 0) .cse3)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1))) (or .cse2 (not (= |old(~pumpRunning~0)| 1)) (and .cse3 (= ~pumpRunning~0 1)))))) [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L137(lines 137 154) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L455(lines 455 461) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 261) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L257-2(lines 257 261) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 101 124) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 932) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 104 123) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 363) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L548(lines 548 555) no Hoare annotation was computed. [2023-12-15 22:56:13,288 INFO L899 garLoopResultBuilder]: For program point L548-2(lines 548 555) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L317(lines 317 321) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L895 garLoopResultBuilder]: At program point L317-2(lines 311 322) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 307) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L301-1(lines 301 307) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L330(lines 271 334) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L895 garLoopResultBuilder]: At program point L293(line 293) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L895 garLoopResultBuilder]: At program point L327(lines 280 328) the Hoare annotation is: false [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L282(lines 281 326) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 322) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L895 garLoopResultBuilder]: At program point L303(line 303) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2023-12-15 22:56:13,289 INFO L895 garLoopResultBuilder]: At program point L324(lines 281 326) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 1) .cse2) (and .cse1 .cse2 (= ~pumpRunning~0 1)) (and .cse0 (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point L291-1(lines 291 297) no Hoare annotation was computed. [2023-12-15 22:56:13,289 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 386 397) no Hoare annotation was computed. [2023-12-15 22:56:13,290 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 386 397) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse1 (not (= ~pumpRunning~0 1)) .cse2) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2))) [2023-12-15 22:56:13,290 INFO L899 garLoopResultBuilder]: For program point L390-1(lines 386 397) no Hoare annotation was computed. [2023-12-15 22:56:13,291 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:56:13,293 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:56:13,300 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:56:13 BoogieIcfgContainer [2023-12-15 22:56:13,301 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:56:13,301 INFO L158 Benchmark]: Toolchain (without parser) took 4256.43ms. Allocated memory was 216.0MB in the beginning and 312.5MB in the end (delta: 96.5MB). Free memory was 152.4MB in the beginning and 239.0MB in the end (delta: -86.7MB). Peak memory consumption was 154.2MB. Max. memory is 8.0GB. [2023-12-15 22:56:13,301 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 216.0MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:56:13,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.92ms. Allocated memory is still 216.0MB. Free memory was 152.4MB in the beginning and 132.9MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 22:56:13,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.92ms. Allocated memory was 216.0MB in the beginning and 312.5MB in the end (delta: 96.5MB). Free memory was 132.9MB in the beginning and 277.3MB in the end (delta: -144.5MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. [2023-12-15 22:56:13,302 INFO L158 Benchmark]: Boogie Preprocessor took 33.19ms. Allocated memory is still 312.5MB. Free memory was 277.3MB in the beginning and 274.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 22:56:13,302 INFO L158 Benchmark]: RCFGBuilder took 387.50ms. Allocated memory is still 312.5MB. Free memory was 274.7MB in the beginning and 253.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-15 22:56:13,302 INFO L158 Benchmark]: TraceAbstraction took 3436.10ms. Allocated memory is still 312.5MB. Free memory was 252.7MB in the beginning and 239.0MB in the end (delta: 13.6MB). Peak memory consumption was 156.8MB. Max. memory is 8.0GB. [2023-12-15 22:56:13,303 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 216.0MB. Free memory is still 164.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 322.92ms. Allocated memory is still 216.0MB. Free memory was 152.4MB in the beginning and 132.9MB in the end (delta: 19.5MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 63.92ms. Allocated memory was 216.0MB in the beginning and 312.5MB in the end (delta: 96.5MB). Free memory was 132.9MB in the beginning and 277.3MB in the end (delta: -144.5MB). Peak memory consumption was 6.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.19ms. Allocated memory is still 312.5MB. Free memory was 277.3MB in the beginning and 274.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 387.50ms. Allocated memory is still 312.5MB. Free memory was 274.7MB in the beginning and 253.2MB in the end (delta: 21.5MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3436.10ms. Allocated memory is still 312.5MB. Free memory was 252.7MB in the beginning and 239.0MB in the end (delta: 13.6MB). Peak memory consumption was 156.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [87] - GenericResultAtLocation [Line: 267]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [267] - GenericResultAtLocation [Line: 335]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [335] - GenericResultAtLocation [Line: 371]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [371] - GenericResultAtLocation [Line: 465]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [465] - GenericResultAtLocation [Line: 561]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [561] - GenericResultAtLocation [Line: 927]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [927] * 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: 932]: 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 7 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 719 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 695 mSDsluCounter, 1517 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 949 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 896 IncrementalHoareTripleChecker+Invalid, 1020 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 568 mSDtfsCounter, 896 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=411occurred in iteration=8, InterpolantAutomatonStates: 61, 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, 10 MinimizatonAttempts, 36 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 408 PreInvPairs, 473 NumberOfFragments, 617 HoareAnnotationTreeSize, 408 FormulaSimplifications, 40 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FormulaSimplificationsInter, 1673 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 328 ConstructedInterpolants, 0 QuantifiedInterpolants, 619 SizeOfPredicates, 3 NumberOfNonLiveVariables, 201 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 7/8 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: 477]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 280]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 281]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0) && (1 == systemActive)) && (methaneLevelCritical == 1)) && (splverifierCounter == 0)) || (((1 == systemActive) && (splverifierCounter == 0)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) RESULT: Ultimate proved your program to be correct! [2023-12-15 22:56:13,325 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...