/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_spec1_product60.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:37:27,068 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:37:27,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:37:27,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:37:27,143 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:37:27,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:37:27,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:37:27,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:37:27,171 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:37:27,171 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:37:27,172 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:37:27,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:37:27,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:37:27,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:37:27,173 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:37:27,173 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:37:27,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:37:27,174 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:37:27,174 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:37:27,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:37:27,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:37:27,176 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:37:27,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:37:27,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:37:27,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:37:27,177 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:37:27,177 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:37:27,178 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:37:27,178 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:37:27,178 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:37:27,179 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:37:27,179 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:37:27,179 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:37:27,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:37:27,180 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:37:27,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:37:27,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:37:27,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:37:27,181 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:37:27,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:37:27,182 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:37:27,184 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:37:27,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:37:27,184 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:37:27,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:37:27,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:37:27,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:37:27,394 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:37:27,395 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:37:27,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product60.cil.c [2023-12-19 23:37:28,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:37:28,878 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:37:28,878 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product60.cil.c [2023-12-19 23:37:28,890 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8869eb5d0/f350b1798628436eb1ee285cde3f87ea/FLAGe6c86886c [2023-12-19 23:37:28,902 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8869eb5d0/f350b1798628436eb1ee285cde3f87ea [2023-12-19 23:37:28,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:37:28,909 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:37:28,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:37:28,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:37:28,915 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:37:28,916 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:37:28" (1/1) ... [2023-12-19 23:37:28,917 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b894444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:28, skipping insertion in model container [2023-12-19 23:37:28,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:37:28" (1/1) ... [2023-12-19 23:37:28,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:37:29,235 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_spec1_product60.cil.c[14569,14582] [2023-12-19 23:37:29,275 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:37:29,293 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:37:29,301 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2023-12-19 23:37:29,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [153] [2023-12-19 23:37:29,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [262] [2023-12-19 23:37:29,302 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [290] [2023-12-19 23:37:29,303 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [656] [2023-12-19 23:37:29,304 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [665] [2023-12-19 23:37:29,305 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [736] [2023-12-19 23:37:29,307 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [976] [2023-12-19 23:37:29,365 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_spec1_product60.cil.c[14569,14582] [2023-12-19 23:37:29,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:37:29,390 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:37:29,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29 WrapperNode [2023-12-19 23:37:29,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:37:29,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:37:29,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:37:29,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:37:29,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,441 INFO L138 Inliner]: procedures = 58, calls = 103, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 221 [2023-12-19 23:37:29,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:37:29,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:37:29,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:37:29,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:37:29,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,454 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,468 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:37:29,469 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,487 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:37:29,492 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:37:29,492 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:37:29,492 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:37:29,493 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (1/1) ... [2023-12-19 23:37:29,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:37:29,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:37:29,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:37:29,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:37:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:37:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:37:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:37:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-19 23:37:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-19 23:37:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:37:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:37:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:37:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:37:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:37:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:37:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:37:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:37:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-19 23:37:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-19 23:37:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:37:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:37:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:37:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:37:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:37:29,619 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:37:29,621 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:37:29,865 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:37:29,927 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:37:29,927 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:37:29,927 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:37:29 BoogieIcfgContainer [2023-12-19 23:37:29,928 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:37:29,930 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:37:29,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:37:29,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:37:29,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:37:28" (1/3) ... [2023-12-19 23:37:29,947 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2021da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:37:29, skipping insertion in model container [2023-12-19 23:37:29,947 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:37:29" (2/3) ... [2023-12-19 23:37:29,948 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c2021da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:37:29, skipping insertion in model container [2023-12-19 23:37:29,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:37:29" (3/3) ... [2023-12-19 23:37:29,949 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product60.cil.c [2023-12-19 23:37:29,961 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:37:29,961 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:37:29,995 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:37:30,000 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;@5edf8fca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:37:30,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:37:30,005 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 53 states have (on average 1.528301886792453) internal successors, (81), 62 states have internal predecessors, (81), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-19 23:37:30,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-19 23:37:30,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:30,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:30,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:30,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:30,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1616753094, now seen corresponding path program 1 times [2023-12-19 23:37:30,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:30,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727524412] [2023-12-19 23:37:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:30,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:30,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-19 23:37:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:30,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:30,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727524412] [2023-12-19 23:37:30,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727524412] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:30,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:30,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:37:30,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006360034] [2023-12-19 23:37:30,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:30,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:37:30,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:30,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:37:30,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:37:30,220 INFO L87 Difference]: Start difference. First operand has 77 states, 53 states have (on average 1.528301886792453) internal successors, (81), 62 states have internal predecessors, (81), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:30,271 INFO L93 Difference]: Finished difference Result 152 states and 219 transitions. [2023-12-19 23:37:30,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:37:30,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2023-12-19 23:37:30,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:30,280 INFO L225 Difference]: With dead ends: 152 [2023-12-19 23:37:30,281 INFO L226 Difference]: Without dead ends: 72 [2023-12-19 23:37:30,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:37:30,287 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:30,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:30,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2023-12-19 23:37:30,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2023-12-19 23:37:30,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 50 states have (on average 1.42) internal successors, (71), 58 states have internal predecessors, (71), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2023-12-19 23:37:30,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 98 transitions. [2023-12-19 23:37:30,326 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 98 transitions. Word has length 16 [2023-12-19 23:37:30,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:30,326 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 98 transitions. [2023-12-19 23:37:30,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,326 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 98 transitions. [2023-12-19 23:37:30,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-19 23:37:30,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:30,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:30,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:37:30,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:30,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:30,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1506062791, now seen corresponding path program 1 times [2023-12-19 23:37:30,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:30,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915979403] [2023-12-19 23:37:30,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:30,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-19 23:37:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:30,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:30,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915979403] [2023-12-19 23:37:30,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915979403] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:30,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:30,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:37:30,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669550073] [2023-12-19 23:37:30,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:30,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:37:30,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:30,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:37:30,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:30,407 INFO L87 Difference]: Start difference. First operand 72 states and 98 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:30,440 INFO L93 Difference]: Finished difference Result 114 states and 154 transitions. [2023-12-19 23:37:30,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:37:30,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-19 23:37:30,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:30,442 INFO L225 Difference]: With dead ends: 114 [2023-12-19 23:37:30,442 INFO L226 Difference]: Without dead ends: 64 [2023-12-19 23:37:30,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:30,444 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 14 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:30,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 130 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-19 23:37:30,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-12-19 23:37:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 53 states have internal predecessors, (65), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-19 23:37:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 87 transitions. [2023-12-19 23:37:30,454 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 87 transitions. Word has length 17 [2023-12-19 23:37:30,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:30,454 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 87 transitions. [2023-12-19 23:37:30,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 87 transitions. [2023-12-19 23:37:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-19 23:37:30,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:30,456 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] [2023-12-19 23:37:30,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:37:30,456 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:30,457 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:30,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1095535619, now seen corresponding path program 1 times [2023-12-19 23:37:30,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:30,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508791591] [2023-12-19 23:37:30,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:30,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:30,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:30,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508791591] [2023-12-19 23:37:30,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508791591] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:30,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:30,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:37:30,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701763609] [2023-12-19 23:37:30,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:30,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:37:30,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:30,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:37:30,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:30,570 INFO L87 Difference]: Start difference. First operand 64 states and 87 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:30,644 INFO L93 Difference]: Finished difference Result 188 states and 258 transitions. [2023-12-19 23:37:30,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:37:30,644 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2023-12-19 23:37:30,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:30,646 INFO L225 Difference]: With dead ends: 188 [2023-12-19 23:37:30,646 INFO L226 Difference]: Without dead ends: 126 [2023-12-19 23:37:30,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:37:30,648 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 81 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:30,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 153 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:30,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-19 23:37:30,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2023-12-19 23:37:30,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 101 states have internal predecessors, (125), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-19 23:37:30,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 169 transitions. [2023-12-19 23:37:30,668 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 169 transitions. Word has length 20 [2023-12-19 23:37:30,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:30,668 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 169 transitions. [2023-12-19 23:37:30,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,668 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 169 transitions. [2023-12-19 23:37:30,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 23:37:30,670 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:30,670 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] [2023-12-19 23:37:30,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:37:30,670 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:30,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:30,671 INFO L85 PathProgramCache]: Analyzing trace with hash -672055808, now seen corresponding path program 1 times [2023-12-19 23:37:30,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:30,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887018880] [2023-12-19 23:37:30,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:30,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:37:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:30,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:30,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:30,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887018880] [2023-12-19 23:37:30,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887018880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:30,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:30,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:37:30,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32006632] [2023-12-19 23:37:30,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:30,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:37:30,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:30,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:37:30,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:37:30,746 INFO L87 Difference]: Start difference. First operand 123 states and 169 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:30,856 INFO L93 Difference]: Finished difference Result 324 states and 451 transitions. [2023-12-19 23:37:30,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:37:30,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 1 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 23 [2023-12-19 23:37:30,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:30,863 INFO L225 Difference]: With dead ends: 324 [2023-12-19 23:37:30,863 INFO L226 Difference]: Without dead ends: 203 [2023-12-19 23:37:30,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:37:30,865 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 62 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:30,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 187 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2023-12-19 23:37:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 198. [2023-12-19 23:37:30,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 141 states have (on average 1.3829787234042554) internal successors, (195), 158 states have internal predecessors, (195), 30 states have call successors, (30), 26 states have call predecessors, (30), 26 states have return successors, (38), 27 states have call predecessors, (38), 30 states have call successors, (38) [2023-12-19 23:37:30,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 263 transitions. [2023-12-19 23:37:30,915 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 263 transitions. Word has length 23 [2023-12-19 23:37:30,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:30,915 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 263 transitions. [2023-12-19 23:37:30,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-19 23:37:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 263 transitions. [2023-12-19 23:37:30,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:37:30,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:30,920 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] [2023-12-19 23:37:30,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:37:30,921 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:30,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:30,921 INFO L85 PathProgramCache]: Analyzing trace with hash -943497671, now seen corresponding path program 1 times [2023-12-19 23:37:30,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:30,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552136819] [2023-12-19 23:37:30,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:30,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:30,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:31,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:31,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:37:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:31,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:31,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552136819] [2023-12-19 23:37:31,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552136819] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:31,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:31,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:37:31,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446816701] [2023-12-19 23:37:31,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:31,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:37:31,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:31,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:37:31,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:37:31,073 INFO L87 Difference]: Start difference. First operand 198 states and 263 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), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:37:31,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:31,227 INFO L93 Difference]: Finished difference Result 440 states and 599 transitions. [2023-12-19 23:37:31,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:37:31,227 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), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:37:31,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:31,234 INFO L225 Difference]: With dead ends: 440 [2023-12-19 23:37:31,234 INFO L226 Difference]: Without dead ends: 244 [2023-12-19 23:37:31,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:37:31,243 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 51 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:31,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 180 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:31,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-19 23:37:31,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 238. [2023-12-19 23:37:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 188 states have internal predecessors, (231), 34 states have call successors, (34), 26 states have call predecessors, (34), 32 states have return successors, (48), 35 states have call predecessors, (48), 34 states have call successors, (48) [2023-12-19 23:37:31,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 313 transitions. [2023-12-19 23:37:31,266 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 313 transitions. Word has length 38 [2023-12-19 23:37:31,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:31,266 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 313 transitions. [2023-12-19 23:37:31,266 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), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:37:31,266 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 313 transitions. [2023-12-19 23:37:31,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:37:31,267 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:31,267 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] [2023-12-19 23:37:31,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:37:31,268 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:31,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1761146121, now seen corresponding path program 1 times [2023-12-19 23:37:31,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:31,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443931545] [2023-12-19 23:37:31,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:31,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:37:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:31,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:31,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443931545] [2023-12-19 23:37:31,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443931545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:31,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:31,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:37:31,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203778924] [2023-12-19 23:37:31,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:31,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:37:31,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:31,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:37:31,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:37:31,408 INFO L87 Difference]: Start difference. First operand 238 states and 313 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), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:37:31,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:31,541 INFO L93 Difference]: Finished difference Result 490 states and 661 transitions. [2023-12-19 23:37:31,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:37:31,542 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), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:37:31,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:31,545 INFO L225 Difference]: With dead ends: 490 [2023-12-19 23:37:31,545 INFO L226 Difference]: Without dead ends: 254 [2023-12-19 23:37:31,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:37:31,551 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 56 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:31,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 181 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:31,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-12-19 23:37:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 242. [2023-12-19 23:37:31,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 175 states have (on average 1.3428571428571427) internal successors, (235), 192 states have internal predecessors, (235), 34 states have call successors, (34), 26 states have call predecessors, (34), 32 states have return successors, (48), 35 states have call predecessors, (48), 34 states have call successors, (48) [2023-12-19 23:37:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 317 transitions. [2023-12-19 23:37:31,578 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 317 transitions. Word has length 38 [2023-12-19 23:37:31,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:31,578 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 317 transitions. [2023-12-19 23:37:31,578 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), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:37:31,579 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 317 transitions. [2023-12-19 23:37:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:37:31,581 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:31,581 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] [2023-12-19 23:37:31,582 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:37:31,582 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:31,582 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:31,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1542291403, now seen corresponding path program 1 times [2023-12-19 23:37:31,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:31,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002906458] [2023-12-19 23:37:31,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:31,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:31,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:31,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:37:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:31,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:31,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:31,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002906458] [2023-12-19 23:37:31,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002906458] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:31,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:31,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:37:31,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108654823] [2023-12-19 23:37:31,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:31,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:37:31,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:31,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:37:31,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:37:31,662 INFO L87 Difference]: Start difference. First operand 242 states and 317 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 23:37:31,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:31,940 INFO L93 Difference]: Finished difference Result 785 states and 1101 transitions. [2023-12-19 23:37:31,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:37:31,941 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), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2023-12-19 23:37:31,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:31,945 INFO L225 Difference]: With dead ends: 785 [2023-12-19 23:37:31,946 INFO L226 Difference]: Without dead ends: 545 [2023-12-19 23:37:31,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:37:31,949 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 183 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:31,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 261 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:37:31,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-12-19 23:37:31,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 537. [2023-12-19 23:37:31,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 386 states have (on average 1.33419689119171) internal successors, (515), 417 states have internal predecessors, (515), 80 states have call successors, (80), 71 states have call predecessors, (80), 70 states have return successors, (130), 74 states have call predecessors, (130), 80 states have call successors, (130) [2023-12-19 23:37:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 725 transitions. [2023-12-19 23:37:32,003 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 725 transitions. Word has length 38 [2023-12-19 23:37:32,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:32,004 INFO L495 AbstractCegarLoop]: Abstraction has 537 states and 725 transitions. [2023-12-19 23:37:32,005 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), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-19 23:37:32,005 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 725 transitions. [2023-12-19 23:37:32,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-19 23:37:32,008 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:32,008 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] [2023-12-19 23:37:32,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:37:32,008 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:32,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:32,009 INFO L85 PathProgramCache]: Analyzing trace with hash 558304731, now seen corresponding path program 1 times [2023-12-19 23:37:32,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:32,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739642396] [2023-12-19 23:37:32,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:32,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:32,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-19 23:37:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:37:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 23:37:32,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:32,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739642396] [2023-12-19 23:37:32,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739642396] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:32,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:32,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:37:32,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054262923] [2023-12-19 23:37:32,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:32,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:37:32,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:32,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:37:32,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:37:32,180 INFO L87 Difference]: Start difference. First operand 537 states and 725 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:37:32,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:32,655 INFO L93 Difference]: Finished difference Result 1811 states and 2533 transitions. [2023-12-19 23:37:32,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-19 23:37:32,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-12-19 23:37:32,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:32,662 INFO L225 Difference]: With dead ends: 1811 [2023-12-19 23:37:32,662 INFO L226 Difference]: Without dead ends: 1276 [2023-12-19 23:37:32,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2023-12-19 23:37:32,665 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 276 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 115 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 115 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:32,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 254 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [115 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:37:32,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2023-12-19 23:37:32,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1245. [2023-12-19 23:37:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1245 states, 888 states have (on average 1.28490990990991) internal successors, (1141), 965 states have internal predecessors, (1141), 196 states have call successors, (196), 142 states have call predecessors, (196), 160 states have return successors, (352), 188 states have call predecessors, (352), 196 states have call successors, (352) [2023-12-19 23:37:32,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1245 states to 1245 states and 1689 transitions. [2023-12-19 23:37:32,757 INFO L78 Accepts]: Start accepts. Automaton has 1245 states and 1689 transitions. Word has length 42 [2023-12-19 23:37:32,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:32,757 INFO L495 AbstractCegarLoop]: Abstraction has 1245 states and 1689 transitions. [2023-12-19 23:37:32,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:37:32,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1245 states and 1689 transitions. [2023-12-19 23:37:32,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-19 23:37:32,761 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:32,761 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, 1, 1, 1, 1] [2023-12-19 23:37:32,761 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:37:32,761 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:32,761 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:32,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2043931009, now seen corresponding path program 1 times [2023-12-19 23:37:32,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:32,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580409934] [2023-12-19 23:37:32,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:32,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:37:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:37:32,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-19 23:37:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 23:37:32,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580409934] [2023-12-19 23:37:32,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580409934] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:37:32,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160823247] [2023-12-19 23:37:32,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:32,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:37:32,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:37:32,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:37:32,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:37:33,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-19 23:37:33,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:37:33,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:37:33,232 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:37:33,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160823247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:33,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:37:33,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-12-19 23:37:33,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084099150] [2023-12-19 23:37:33,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:33,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-19 23:37:33,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:33,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-19 23:37:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:37:33,235 INFO L87 Difference]: Start difference. First operand 1245 states and 1689 transitions. Second operand has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-19 23:37:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:33,443 INFO L93 Difference]: Finished difference Result 2436 states and 3316 transitions. [2023-12-19 23:37:33,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 23:37:33,443 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 46 [2023-12-19 23:37:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:33,451 INFO L225 Difference]: With dead ends: 2436 [2023-12-19 23:37:33,451 INFO L226 Difference]: Without dead ends: 1193 [2023-12-19 23:37:33,457 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2023-12-19 23:37:33,459 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 62 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:33,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 413 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:33,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2023-12-19 23:37:33,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2023-12-19 23:37:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 850 states have (on average 1.2694117647058825) internal successors, (1079), 925 states have internal predecessors, (1079), 190 states have call successors, (190), 138 states have call predecessors, (190), 152 states have return successors, (314), 178 states have call predecessors, (314), 190 states have call successors, (314) [2023-12-19 23:37:33,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1583 transitions. [2023-12-19 23:37:33,539 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1583 transitions. Word has length 46 [2023-12-19 23:37:33,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:33,540 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1583 transitions. [2023-12-19 23:37:33,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-19 23:37:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1583 transitions. [2023-12-19 23:37:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-19 23:37:33,543 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:33,543 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:33,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-19 23:37:33,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:37:33,750 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:33,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:33,750 INFO L85 PathProgramCache]: Analyzing trace with hash -276738347, now seen corresponding path program 1 times [2023-12-19 23:37:33,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:33,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396108686] [2023-12-19 23:37:33,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:33,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:33,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:37:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:37:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:37:33,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-19 23:37:33,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-12-19 23:37:33,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:33,839 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:37:33,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:33,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396108686] [2023-12-19 23:37:33,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396108686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:33,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:37:33,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:37:33,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703533604] [2023-12-19 23:37:33,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:33,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:37:33,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:33,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:37:33,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:37:33,842 INFO L87 Difference]: Start difference. First operand 1193 states and 1583 transitions. Second operand has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 23:37:34,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:34,224 INFO L93 Difference]: Finished difference Result 1968 states and 2593 transitions. [2023-12-19 23:37:34,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-19 23:37:34,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 70 [2023-12-19 23:37:34,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:34,229 INFO L225 Difference]: With dead ends: 1968 [2023-12-19 23:37:34,229 INFO L226 Difference]: Without dead ends: 777 [2023-12-19 23:37:34,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2023-12-19 23:37:34,232 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 358 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:34,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 128 Invalid, 458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:37:34,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2023-12-19 23:37:34,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 763. [2023-12-19 23:37:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 545 states have (on average 1.2532110091743118) internal successors, (683), 593 states have internal predecessors, (683), 119 states have call successors, (119), 94 states have call predecessors, (119), 98 states have return successors, (181), 113 states have call predecessors, (181), 119 states have call successors, (181) [2023-12-19 23:37:34,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 983 transitions. [2023-12-19 23:37:34,308 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 983 transitions. Word has length 70 [2023-12-19 23:37:34,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:34,308 INFO L495 AbstractCegarLoop]: Abstraction has 763 states and 983 transitions. [2023-12-19 23:37:34,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.571428571428571) internal successors, (53), 4 states have internal predecessors, (53), 4 states have call successors, (8), 6 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-19 23:37:34,308 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 983 transitions. [2023-12-19 23:37:34,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-19 23:37:34,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:34,310 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:34,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-19 23:37:34,311 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:34,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:34,311 INFO L85 PathProgramCache]: Analyzing trace with hash 879516092, now seen corresponding path program 1 times [2023-12-19 23:37:34,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:34,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039029852] [2023-12-19 23:37:34,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:34,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:37:34,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:37:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:37:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:37:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:37:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:37:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,514 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-19 23:37:34,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039029852] [2023-12-19 23:37:34,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039029852] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:37:34,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [258432627] [2023-12-19 23:37:34,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:34,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:37:34,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:37:34,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:37:34,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:37:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:34,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-19 23:37:34,606 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:37:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:37:34,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:37:34,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [258432627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:34,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:37:34,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2023-12-19 23:37:34,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503720486] [2023-12-19 23:37:34,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:34,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:37:34,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:34,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:37:34,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-19 23:37:34,674 INFO L87 Difference]: Start difference. First operand 763 states and 983 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-19 23:37:34,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:34,836 INFO L93 Difference]: Finished difference Result 2027 states and 2664 transitions. [2023-12-19 23:37:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-19 23:37:34,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2023-12-19 23:37:34,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:34,843 INFO L225 Difference]: With dead ends: 2027 [2023-12-19 23:37:34,843 INFO L226 Difference]: Without dead ends: 1266 [2023-12-19 23:37:34,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-19 23:37:34,846 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 103 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:34,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 321 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:37:34,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2023-12-19 23:37:34,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1137. [2023-12-19 23:37:34,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1137 states, 813 states have (on average 1.2496924969249692) internal successors, (1016), 881 states have internal predecessors, (1016), 177 states have call successors, (177), 146 states have call predecessors, (177), 146 states have return successors, (271), 159 states have call predecessors, (271), 177 states have call successors, (271) [2023-12-19 23:37:34,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1137 states to 1137 states and 1464 transitions. [2023-12-19 23:37:34,920 INFO L78 Accepts]: Start accepts. Automaton has 1137 states and 1464 transitions. Word has length 79 [2023-12-19 23:37:34,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:34,921 INFO L495 AbstractCegarLoop]: Abstraction has 1137 states and 1464 transitions. [2023-12-19 23:37:34,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-19 23:37:34,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1137 states and 1464 transitions. [2023-12-19 23:37:34,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-19 23:37:34,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:37:34,923 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:34,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:37:35,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 23:37:35,135 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:37:35,135 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:37:35,135 INFO L85 PathProgramCache]: Analyzing trace with hash 61867642, now seen corresponding path program 1 times [2023-12-19 23:37:35,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:37:35,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049658326] [2023-12-19 23:37:35,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:35,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:37:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:37:35,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:37:35,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-19 23:37:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:37:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-19 23:37:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-19 23:37:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-19 23:37:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:37:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-19 23:37:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,275 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-12-19 23:37:35,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:37:35,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049658326] [2023-12-19 23:37:35,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049658326] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:37:35,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873073283] [2023-12-19 23:37:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:37:35,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:37:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:37:35,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:37:35,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-19 23:37:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:37:35,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-19 23:37:35,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:37:35,389 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-19 23:37:35,389 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-19 23:37:35,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873073283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:37:35,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-19 23:37:35,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2023-12-19 23:37:35,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893283064] [2023-12-19 23:37:35,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:37:35,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:37:35,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:37:35,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:37:35,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:37:35,391 INFO L87 Difference]: Start difference. First operand 1137 states and 1464 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-19 23:37:35,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:37:35,453 INFO L93 Difference]: Finished difference Result 1657 states and 2105 transitions. [2023-12-19 23:37:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:37:35,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2023-12-19 23:37:35,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:37:35,454 INFO L225 Difference]: With dead ends: 1657 [2023-12-19 23:37:35,454 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:37:35,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2023-12-19 23:37:35,458 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 1 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:37:35,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 184 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:37:35,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:37:35,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:37:35,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:37:35,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:37:35,459 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2023-12-19 23:37:35,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:37:35,459 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:37:35,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-19 23:37:35,460 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:37:35,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:37:35,462 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:37:35,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-19 23:37:35,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:37:35,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:37:37,896 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 851 858) no Hoare annotation was computed. [2023-12-19 23:37:37,897 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 851 858) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 2)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (< ~waterLevel~0 1)) (.cse6 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse4) (or .cse0 .cse5 .cse6 .cse1))) [2023-12-19 23:37:37,897 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 766 772) no Hoare annotation was computed. [2023-12-19 23:37:37,897 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 766 772) the Hoare annotation is: true [2023-12-19 23:37:37,897 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 186 197) no Hoare annotation was computed. [2023-12-19 23:37:37,898 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 186 197) the Hoare annotation is: (let ((.cse6 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse7 (< |old(~methaneLevelCritical~0)| 1)) (.cse4 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse2 (< ~waterLevel~0 1)) (.cse3 (= ~methaneLevelCritical~0 0)) (.cse5 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse6 .cse7) (or .cse1 .cse2 .cse6 .cse7 .cse4) (or .cse0 .cse3 .cse5 (< ~waterLevel~0 2)) (or .cse0 .cse1 .cse2 .cse3 .cse5))) [2023-12-19 23:37:37,898 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 186 197) no Hoare annotation was computed. [2023-12-19 23:37:37,898 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 198 206) the Hoare annotation is: true [2023-12-19 23:37:37,898 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 198 206) no Hoare annotation was computed. [2023-12-19 23:37:37,898 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (let ((.cse13 (<= 2 ~waterLevel~0)) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse11 (= ~pumpRunning~0 0)) (.cse12 (= ~waterLevel~0 1))) (let ((.cse3 (and .cse11 (= |old(~waterLevel~0)| 1) .cse12)) (.cse4 (and .cse13 .cse14)) (.cse9 (and .cse11 .cse14)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse10 (not (= 0 ~systemActive~0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse7 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (and .cse11 (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse2 .cse3 .cse6 .cse4) (or .cse2 .cse7 .cse5 .cse8) (or .cse0 .cse9 .cse7 .cse5 .cse10) (or .cse0 .cse1 .cse9 .cse6 .cse10) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 (and .cse11 .cse12) .cse5 .cse10) (or .cse2 .cse13 .cse7 .cse6 .cse8)))) [2023-12-19 23:37:37,898 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2023-12-19 23:37:37,898 INFO L899 garLoopResultBuilder]: For program point L746-1(lines 745 764) no Hoare annotation was computed. [2023-12-19 23:37:37,898 INFO L899 garLoopResultBuilder]: For program point L808(lines 808 816) no Hoare annotation was computed. [2023-12-19 23:37:37,898 INFO L899 garLoopResultBuilder]: For program point L804(lines 804 821) no Hoare annotation was computed. [2023-12-19 23:37:37,899 INFO L899 garLoopResultBuilder]: For program point L277(lines 277 283) no Hoare annotation was computed. [2023-12-19 23:37:37,899 INFO L899 garLoopResultBuilder]: For program point L661(line 661) no Hoare annotation was computed. [2023-12-19 23:37:37,899 INFO L899 garLoopResultBuilder]: For program point L273(lines 273 286) no Hoare annotation was computed. [2023-12-19 23:37:37,899 INFO L899 garLoopResultBuilder]: For program point L273-1(lines 265 289) no Hoare annotation was computed. [2023-12-19 23:37:37,899 INFO L895 garLoopResultBuilder]: At program point L814(line 814) the Hoare annotation is: (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4) (or .cse0 .cse1 .cse3 .cse5) (or .cse2 .cse6 .cse3) (or .cse2 .cse6 .cse4) (or .cse0 .cse1 .cse4 .cse5))) [2023-12-19 23:37:37,899 INFO L895 garLoopResultBuilder]: At program point L810(line 810) the Hoare annotation is: (let ((.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_processEnvironment_~tmp~7#1|))) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= 1 ~systemActive~0))) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (< |old(~waterLevel~0)| 1)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse6) (or .cse0 .cse1 .cse2 .cse6) (or .cse4 .cse5 .cse0 .cse3) (or .cse4 .cse5 .cse6 .cse7) (or .cse4 .cse5 .cse3 .cse7))) [2023-12-19 23:37:37,899 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 742 765) the Hoare annotation is: (let ((.cse11 (= ~pumpRunning~0 0)) (.cse12 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (and .cse11 .cse12)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse7 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse12)) (.cse8 (< 1 |old(~waterLevel~0)|)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse9 (and .cse11 (= ~waterLevel~0 1))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse10 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse3 .cse5 .cse6 .cse7) (or .cse8 .cse0 .cse1 .cse3 .cse6 .cse9) (or .cse0 .cse2 .cse5 .cse4 .cse10) (or .cse0 .cse1 .cse2 .cse6 .cse10) (or .cse3 .cse5 .cse7 .cse4) (or .cse8 .cse0 .cse1 .cse9 .cse4 .cse10)))) [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point L166(lines 166 170) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point L166-2(lines 162 173) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L895 garLoopResultBuilder]: At program point L819(line 819) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse5 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 1 ~systemActive~0))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not .cse7)) (.cse1 (< |old(~waterLevel~0)| 1)) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4 .cse5) (or .cse4 .cse6 .cse7 .cse5) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse4 .cse8 (and .cse2 (= ~waterLevel~0 1))) (or .cse0 .cse1 .cse5 .cse9) (or .cse4 .cse6 (and .cse2 .cse7 .cse3) .cse8) (or .cse0 .cse1 .cse8 .cse9)))) [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point L819-1(lines 800 824) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point L753-1(lines 753 759) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point L943(lines 943 947) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point L943-2(lines 943 947) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 742 765) no Hoare annotation was computed. [2023-12-19 23:37:37,900 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 661) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L902 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L902 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2023-12-19 23:37:37,901 INFO L902 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L77(lines 52 81) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 52 81) the Hoare annotation is: true [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L895 garLoopResultBuilder]: At program point L700(line 700) the Hoare annotation is: (let ((.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse4 .cse6) (and .cse0 .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse4 .cse6) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2023-12-19 23:37:37,901 INFO L895 garLoopResultBuilder]: At program point L725(lines 678 727) the Hoare annotation is: (let ((.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse4 .cse6) (and .cse0 .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse4 .cse6) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L688(lines 688 694) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L688-1(lines 688 694) no Hoare annotation was computed. [2023-12-19 23:37:37,901 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 963) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point L957-1(lines 957 963) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point L731(lines 668 735) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 704) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2023-12-19 23:37:37,902 INFO L895 garLoopResultBuilder]: At program point L690(line 690) the Hoare annotation is: (let ((.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= 1 ~waterLevel~0)) (.cse6 (= 0 ~systemActive~0)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse4 .cse6) (and .cse0 .cse5 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse3 .cse4 .cse6) (and .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3))) [2023-12-19 23:37:37,902 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:37:37,903 INFO L895 garLoopResultBuilder]: At program point L959(line 959) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1 .cse2))) [2023-12-19 23:37:37,903 INFO L895 garLoopResultBuilder]: At program point L728(lines 677 729) the Hoare annotation is: false [2023-12-19 23:37:37,903 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2023-12-19 23:37:37,903 INFO L895 garLoopResultBuilder]: At program point L716-2(lines 708 723) the Hoare annotation is: (let ((.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse7 (= 0 ~systemActive~0)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2 .cse3 .cse6) (and .cse4 .cse0 .cse3 .cse6 .cse7) (and .cse4 .cse0 .cse2 .cse3 .cse6) (and .cse4 .cse5 .cse3 .cse6 .cse7) (and .cse5 .cse1 .cse2 .cse3))) [2023-12-19 23:37:37,903 INFO L899 garLoopResultBuilder]: For program point L679(lines 678 727) no Hoare annotation was computed. [2023-12-19 23:37:37,903 INFO L899 garLoopResultBuilder]: For program point L708(lines 708 723) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L895 garLoopResultBuilder]: At program point L793(line 793) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 (< ~methaneLevelCritical~0 1)))) [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point L793-1(lines 774 798) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 774 798) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (< ~waterLevel~0 1)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)))) [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 847) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point L841-2(lines 834 850) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 239 252) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L895 garLoopResultBuilder]: At program point L864(line 864) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (not .cse6)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not .cse5)) (.cse4 (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) .cse5 .cse6))) (and (or .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3) (or .cse0 .cse2 (< ~waterLevel~0 2) .cse4 .cse3) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse4)))) [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point L864-1(line 864) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point L924(lines 924 928) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 774 798) no Hoare annotation was computed. [2023-12-19 23:37:37,904 INFO L899 garLoopResultBuilder]: For program point L924-2(lines 924 928) no Hoare annotation was computed. [2023-12-19 23:37:37,905 INFO L895 garLoopResultBuilder]: At program point L788(line 788) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0)) (.cse5 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse5)) (.cse1 (< ~waterLevel~0 1)) (.cse2 (not .cse4)) (.cse3 (and (= ~pumpRunning~0 0) .cse4 .cse5 (= |processEnvironment__wrappee__highWaterSensor_~tmp~6#1| 0)))) (and (or .cse0 .cse1 .cse2 (< ~methaneLevelCritical~0 1) .cse3) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3)))) [2023-12-19 23:37:37,905 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 249) no Hoare annotation was computed. [2023-12-19 23:37:37,905 INFO L899 garLoopResultBuilder]: For program point L782(lines 782 790) no Hoare annotation was computed. [2023-12-19 23:37:37,905 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 795) no Hoare annotation was computed. [2023-12-19 23:37:37,905 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 174 185) no Hoare annotation was computed. [2023-12-19 23:37:37,905 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 174 185) no Hoare annotation was computed. [2023-12-19 23:37:37,905 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 174 185) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse5 (< |old(~waterLevel~0)| 2)) (.cse6 (< ~methaneLevelCritical~0 1)) (.cse0 (< |old(~waterLevel~0)| 1)) (.cse1 (not (= ~pumpRunning~0 0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (= 0 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse4 .cse6) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse6) (or .cse2 .cse5 .cse3 .cse4) (or .cse0 .cse1 .cse4 .cse6 .cse7) (or .cse0 .cse1 .cse3 .cse4 .cse7))) [2023-12-19 23:37:37,907 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:37:37,909 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:37:37,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:37:37 BoogieIcfgContainer [2023-12-19 23:37:37,922 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:37:37,923 INFO L158 Benchmark]: Toolchain (without parser) took 9013.88ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 206.1MB in the beginning and 109.1MB in the end (delta: 97.0MB). Peak memory consumption was 161.3MB. Max. memory is 8.0GB. [2023-12-19 23:37:37,923 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:37:37,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 480.62ms. Allocated memory is still 255.9MB. Free memory was 205.9MB in the beginning and 186.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-19 23:37:37,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.68ms. Allocated memory is still 255.9MB. Free memory was 185.7MB in the beginning and 183.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:37:37,924 INFO L158 Benchmark]: Boogie Preprocessor took 45.59ms. Allocated memory is still 255.9MB. Free memory was 183.6MB in the beginning and 181.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:37:37,924 INFO L158 Benchmark]: RCFGBuilder took 435.92ms. Allocated memory is still 255.9MB. Free memory was 181.0MB in the beginning and 215.2MB in the end (delta: -34.3MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. [2023-12-19 23:37:37,924 INFO L158 Benchmark]: TraceAbstraction took 7992.47ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 214.2MB in the beginning and 109.1MB in the end (delta: 105.1MB). Peak memory consumption was 168.0MB. Max. memory is 8.0GB. [2023-12-19 23:37:37,926 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 196.1MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 480.62ms. Allocated memory is still 255.9MB. Free memory was 205.9MB in the beginning and 186.0MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.68ms. Allocated memory is still 255.9MB. Free memory was 185.7MB in the beginning and 183.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 45.59ms. Allocated memory is still 255.9MB. Free memory was 183.6MB in the beginning and 181.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 435.92ms. Allocated memory is still 255.9MB. Free memory was 181.0MB in the beginning and 215.2MB in the end (delta: -34.3MB). Peak memory consumption was 17.4MB. Max. memory is 8.0GB. * TraceAbstraction took 7992.47ms. Allocated memory was 255.9MB in the beginning and 307.2MB in the end (delta: 51.4MB). Free memory was 214.2MB in the beginning and 109.1MB in the end (delta: 105.1MB). Peak memory consumption was 168.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] - GenericResultAtLocation [Line: 153]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [153] - GenericResultAtLocation [Line: 262]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [262] - GenericResultAtLocation [Line: 290]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [290] - GenericResultAtLocation [Line: 656]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [656] - GenericResultAtLocation [Line: 665]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [665] - GenericResultAtLocation [Line: 736]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [736] - GenericResultAtLocation [Line: 976]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [976] * 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: 661]: 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 9 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1282 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1247 mSDsluCounter, 2479 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1548 mSDsCounter, 353 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1615 IncrementalHoareTripleChecker+Invalid, 1968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 353 mSolverCounterUnsat, 931 mSDtfsCounter, 1615 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 394 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1245occurred in iteration=8, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 208 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 1997 PreInvPairs, 2108 NumberOfFragments, 1463 HoareAnnotationTreeSize, 1997 FormulaSimplifications, 1046 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FormulaSimplificationsInter, 4160 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 695 ConstructedInterpolants, 0 QuantifiedInterpolants, 1146 SizeOfPredicates, 7 NumberOfNonLiveVariables, 811 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 12 PerfectInterpolantSequences, 131/137 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: 678]: Loop Invariant Derived loop invariant: (((((((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) || (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) || (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (1 <= waterLevel)) && (0 == systemActive))) || ((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2023-12-19 23:37:37,952 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...