/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_spec2_product40.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:55:21,236 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:55:21,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:55:21,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:55:21,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:55:21,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:55:21,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:55:21,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:55:21,295 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:55:21,296 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:55:21,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:55:21,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:55:21,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:55:21,297 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:55:21,297 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:55:21,298 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:55:21,298 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:55:21,298 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:55:21,298 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:55:21,299 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:55:21,299 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:55:21,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:55:21,306 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:55:21,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:55:21,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:55:21,309 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:55:21,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:55:21,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:55:21,311 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:55:21,311 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:55:21,311 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:55:21,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:55:21,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:55:21,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:55:21,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:55:21,312 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:55:21,312 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:55:21,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:55:21,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:55:21,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:55:21,313 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:55:21,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:55:21,313 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:55:21,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:55:21,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:55:21,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:55:21,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:55:21,526 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:55:21,526 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:55:21,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2023-12-15 22:55:22,536 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:55:22,721 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:55:22,722 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product40.cil.c [2023-12-15 22:55:22,739 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeeb5d2e7/c4c41cdacc5b4629a0dcb92afe8c6198/FLAG65b4d7c1a [2023-12-15 22:55:22,749 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeeb5d2e7/c4c41cdacc5b4629a0dcb92afe8c6198 [2023-12-15 22:55:22,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:55:22,751 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:55:22,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:55:22,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:55:22,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:55:22,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:55:22" (1/1) ... [2023-12-15 22:55:22,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38023aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:22, skipping insertion in model container [2023-12-15 22:55:22,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:55:22" (1/1) ... [2023-12-15 22:55:22,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:55:22,960 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_spec2_product40.cil.c[17002,17015] [2023-12-15 22:55:22,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:55:22,974 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:55:22,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [49] [2023-12-15 22:55:22,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [91] [2023-12-15 22:55:22,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [191] [2023-12-15 22:55:22,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [264] [2023-12-15 22:55:22,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [468] [2023-12-15 22:55:22,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [834] [2023-12-15 22:55:22,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [843] [2023-12-15 22:55:22,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [943] [2023-12-15 22:55:23,012 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_spec2_product40.cil.c[17002,17015] [2023-12-15 22:55:23,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:55:23,027 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:55:23,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23 WrapperNode [2023-12-15 22:55:23,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:55:23,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:55:23,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:55:23,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:55:23,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,052 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,067 INFO L138 Inliner]: procedures = 56, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 200 [2023-12-15 22:55:23,067 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:55:23,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:55:23,068 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:55:23,068 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:55:23,075 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,091 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 22:55:23,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,102 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,103 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:55:23,104 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:55:23,104 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:55:23,104 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:55:23,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (1/1) ... [2023-12-15 22:55:23,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:55:23,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:23,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:55:23,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:55:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:55:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:55:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:55:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:55:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:55:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:55:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:55:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:55:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:55:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:55:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:55:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:55:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:55:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2023-12-15 22:55:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2023-12-15 22:55:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:55:23,166 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:55:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:55:23,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:55:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:55:23,221 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:55:23,222 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:55:23,427 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:55:23,491 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:55:23,492 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:55:23,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:55:23 BoogieIcfgContainer [2023-12-15 22:55:23,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:55:23,494 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:55:23,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:55:23,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:55:23,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:55:22" (1/3) ... [2023-12-15 22:55:23,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b730e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:55:23, skipping insertion in model container [2023-12-15 22:55:23,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:23" (2/3) ... [2023-12-15 22:55:23,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b730e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:55:23, skipping insertion in model container [2023-12-15 22:55:23,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:55:23" (3/3) ... [2023-12-15 22:55:23,499 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product40.cil.c [2023-12-15 22:55:23,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:55:23,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:55:23,566 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:55:23,573 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;@39fa429d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:55:23,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:55:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 50 states have (on average 1.54) internal successors, (77), 59 states have internal predecessors, (77), 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) [2023-12-15 22:55:23,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:55:23,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:23,589 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:23,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:23,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:23,593 INFO L85 PathProgramCache]: Analyzing trace with hash 867704032, now seen corresponding path program 1 times [2023-12-15 22:55:23,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:23,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571928890] [2023-12-15 22:55:23,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:23,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:23,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:23,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:23,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571928890] [2023-12-15 22:55:23,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571928890] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:23,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:23,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:55:23,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607646150] [2023-12-15 22:55:23,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:23,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:55:23,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:23,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:55:23,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:55:23,763 INFO L87 Difference]: Start difference. First operand has 74 states, 50 states have (on average 1.54) internal successors, (77), 59 states have internal predecessors, (77), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:23,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:23,838 INFO L93 Difference]: Finished difference Result 146 states and 211 transitions. [2023-12-15 22:55:23,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:55:23,841 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-15 22:55:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:23,847 INFO L225 Difference]: With dead ends: 146 [2023-12-15 22:55:23,848 INFO L226 Difference]: Without dead ends: 69 [2023-12-15 22:55:23,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:55:23,854 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:23,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:23,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-15 22:55:23,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-15 22:55:23,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 47 states have (on average 1.425531914893617) internal successors, (67), 55 states have internal predecessors, (67), 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) [2023-12-15 22:55:23,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 94 transitions. [2023-12-15 22:55:23,894 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 94 transitions. Word has length 17 [2023-12-15 22:55:23,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:23,895 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 94 transitions. [2023-12-15 22:55:23,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:23,895 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 94 transitions. [2023-12-15 22:55:23,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:55:23,897 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:23,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:23,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:55:23,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:23,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:23,898 INFO L85 PathProgramCache]: Analyzing trace with hash -2017276898, now seen corresponding path program 1 times [2023-12-15 22:55:23,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:23,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532502945] [2023-12-15 22:55:23,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:23,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:55:24,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:24,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:24,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532502945] [2023-12-15 22:55:24,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532502945] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:24,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:24,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:55:24,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331370507] [2023-12-15 22:55:24,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:24,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:24,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:24,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:24,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:24,012 INFO L87 Difference]: Start difference. First operand 69 states and 94 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:24,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:24,038 INFO L93 Difference]: Finished difference Result 108 states and 146 transitions. [2023-12-15 22:55:24,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:24,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-15 22:55:24,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:24,041 INFO L225 Difference]: With dead ends: 108 [2023-12-15 22:55:24,041 INFO L226 Difference]: Without dead ends: 61 [2023-12-15 22:55:24,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:24,042 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 14 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:24,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 126 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:24,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-15 22:55:24,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-12-15 22:55:24,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 50 states have internal predecessors, (61), 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) [2023-12-15 22:55:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 83 transitions. [2023-12-15 22:55:24,049 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 83 transitions. Word has length 18 [2023-12-15 22:55:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:24,049 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 83 transitions. [2023-12-15 22:55:24,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:24,049 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 83 transitions. [2023-12-15 22:55:24,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:55:24,050 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:24,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:24,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:55:24,050 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:24,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash -2139573733, now seen corresponding path program 1 times [2023-12-15 22:55:24,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:24,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029089692] [2023-12-15 22:55:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:24,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:24,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:24,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029089692] [2023-12-15 22:55:24,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029089692] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:24,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:24,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:55:24,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554314774] [2023-12-15 22:55:24,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:24,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:24,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:24,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:24,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:55:24,170 INFO L87 Difference]: Start difference. First operand 61 states and 83 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:24,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:24,280 INFO L93 Difference]: Finished difference Result 158 states and 216 transitions. [2023-12-15 22:55:24,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:55:24,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-15 22:55:24,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:24,286 INFO L225 Difference]: With dead ends: 158 [2023-12-15 22:55:24,286 INFO L226 Difference]: Without dead ends: 99 [2023-12-15 22:55:24,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:24,288 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 106 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:24,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 182 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:55:24,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-15 22:55:24,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 96. [2023-12-15 22:55:24,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 67 states have (on average 1.462686567164179) internal successors, (98), 78 states have internal predecessors, (98), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-15 22:55:24,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 131 transitions. [2023-12-15 22:55:24,308 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 131 transitions. Word has length 21 [2023-12-15 22:55:24,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:24,309 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 131 transitions. [2023-12-15 22:55:24,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:24,309 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 131 transitions. [2023-12-15 22:55:24,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-15 22:55:24,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:24,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:24,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:55:24,311 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:24,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:24,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1948831607, now seen corresponding path program 1 times [2023-12-15 22:55:24,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:24,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376100232] [2023-12-15 22:55:24,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:24,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-15 22:55:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:24,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:24,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376100232] [2023-12-15 22:55:24,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376100232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:24,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:24,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:55:24,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624572412] [2023-12-15 22:55:24,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:24,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:24,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:24,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:24,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:24,395 INFO L87 Difference]: Start difference. First operand 96 states and 131 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:24,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:24,441 INFO L93 Difference]: Finished difference Result 190 states and 266 transitions. [2023-12-15 22:55:24,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:24,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2023-12-15 22:55:24,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:24,446 INFO L225 Difference]: With dead ends: 190 [2023-12-15 22:55:24,447 INFO L226 Difference]: Without dead ends: 188 [2023-12-15 22:55:24,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:24,450 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 59 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:24,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 138 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:24,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-12-15 22:55:24,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-12-15 22:55:24,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 131 states have (on average 1.4580152671755726) internal successors, (191), 152 states have internal predecessors, (191), 32 states have call successors, (32), 24 states have call predecessors, (32), 24 states have return successors, (40), 24 states have call predecessors, (40), 32 states have call successors, (40) [2023-12-15 22:55:24,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 263 transitions. [2023-12-15 22:55:24,503 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 263 transitions. Word has length 24 [2023-12-15 22:55:24,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:24,504 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 263 transitions. [2023-12-15 22:55:24,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:24,504 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 263 transitions. [2023-12-15 22:55:24,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-15 22:55:24,506 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:24,506 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:24,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:55:24,506 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:24,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:24,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1276838171, now seen corresponding path program 1 times [2023-12-15 22:55:24,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:24,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093247105] [2023-12-15 22:55:24,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:24,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:55:24,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 22:55:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,618 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:55:24,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:24,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093247105] [2023-12-15 22:55:24,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093247105] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:24,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042236289] [2023-12-15 22:55:24,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:24,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:24,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:24,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:24,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:55:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:24,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 22:55:24,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:24,768 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-15 22:55:24,768 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:24,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042236289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:24,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:24,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-15 22:55:24,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122981456] [2023-12-15 22:55:24,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:24,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:24,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:24,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:24,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:55:24,771 INFO L87 Difference]: Start difference. First operand 188 states and 263 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-12-15 22:55:24,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:24,839 INFO L93 Difference]: Finished difference Result 399 states and 576 transitions. [2023-12-15 22:55:24,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:55:24,839 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 45 [2023-12-15 22:55:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:24,847 INFO L225 Difference]: With dead ends: 399 [2023-12-15 22:55:24,848 INFO L226 Difference]: Without dead ends: 213 [2023-12-15 22:55:24,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:55:24,851 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 54 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:24,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 189 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2023-12-15 22:55:24,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 194. [2023-12-15 22:55:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 136 states have (on average 1.375) internal successors, (187), 152 states have internal predecessors, (187), 31 states have call successors, (31), 27 states have call predecessors, (31), 26 states have return successors, (47), 27 states have call predecessors, (47), 31 states have call successors, (47) [2023-12-15 22:55:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 265 transitions. [2023-12-15 22:55:24,867 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 265 transitions. Word has length 45 [2023-12-15 22:55:24,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:24,867 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 265 transitions. [2023-12-15 22:55:24,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-12-15 22:55:24,868 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 265 transitions. [2023-12-15 22:55:24,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-15 22:55:24,869 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:24,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:24,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:25,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:25,092 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:25,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:25,093 INFO L85 PathProgramCache]: Analyzing trace with hash 951237354, now seen corresponding path program 1 times [2023-12-15 22:55:25,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:25,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763717447] [2023-12-15 22:55:25,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:25,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 22:55:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:55:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 22:55:25,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:25,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763717447] [2023-12-15 22:55:25,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763717447] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359006377] [2023-12-15 22:55:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:25,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:25,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:25,212 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) [2023-12-15 22:55:25,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:55:25,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 22:55:25,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:25,352 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:25,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359006377] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:25,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:25,352 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 22:55:25,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758050062] [2023-12-15 22:55:25,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:25,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:25,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:25,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:25,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:55:25,353 INFO L87 Difference]: Start difference. First operand 194 states and 265 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-15 22:55:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:25,392 INFO L93 Difference]: Finished difference Result 385 states and 535 transitions. [2023-12-15 22:55:25,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:25,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 68 [2023-12-15 22:55:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:25,394 INFO L225 Difference]: With dead ends: 385 [2023-12-15 22:55:25,394 INFO L226 Difference]: Without dead ends: 193 [2023-12-15 22:55:25,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:55:25,399 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 40 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:25,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 146 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:25,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-12-15 22:55:25,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 193. [2023-12-15 22:55:25,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 135 states have (on average 1.3185185185185184) internal successors, (178), 150 states have internal predecessors, (178), 31 states have call successors, (31), 27 states have call predecessors, (31), 26 states have return successors, (45), 27 states have call predecessors, (45), 31 states have call successors, (45) [2023-12-15 22:55:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 254 transitions. [2023-12-15 22:55:25,446 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 254 transitions. Word has length 68 [2023-12-15 22:55:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:25,447 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 254 transitions. [2023-12-15 22:55:25,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-15 22:55:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 254 transitions. [2023-12-15 22:55:25,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 22:55:25,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:25,452 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:25,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:25,656 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,SelfDestructingSolverStorable5 [2023-12-15 22:55:25,657 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:25,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:25,657 INFO L85 PathProgramCache]: Analyzing trace with hash -508873393, now seen corresponding path program 1 times [2023-12-15 22:55:25,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:25,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583143549] [2023-12-15 22:55:25,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:25,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:25,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:25,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:25,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:55:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:25,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:55:25,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 22:55:25,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583143549] [2023-12-15 22:55:25,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583143549] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:25,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249532479] [2023-12-15 22:55:25,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:25,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:25,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:25,789 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) [2023-12-15 22:55:25,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:55:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:25,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 22:55:25,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 22:55:25,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249532479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:25,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-12-15 22:55:25,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60789179] [2023-12-15 22:55:25,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:25,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:25,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:25,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:25,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:55:25,869 INFO L87 Difference]: Start difference. First operand 193 states and 254 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:55:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:25,907 INFO L93 Difference]: Finished difference Result 388 states and 520 transitions. [2023-12-15 22:55:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:55:25,908 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-12-15 22:55:25,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:25,909 INFO L225 Difference]: With dead ends: 388 [2023-12-15 22:55:25,909 INFO L226 Difference]: Without dead ends: 197 [2023-12-15 22:55:25,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:55:25,910 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 2 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:25,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 210 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:25,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-12-15 22:55:25,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2023-12-15 22:55:25,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 139 states have (on average 1.3093525179856116) internal successors, (182), 154 states have internal predecessors, (182), 31 states have call successors, (31), 27 states have call predecessors, (31), 26 states have return successors, (45), 27 states have call predecessors, (45), 31 states have call successors, (45) [2023-12-15 22:55:25,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 258 transitions. [2023-12-15 22:55:25,920 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 258 transitions. Word has length 70 [2023-12-15 22:55:25,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:25,920 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 258 transitions. [2023-12-15 22:55:25,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:55:25,920 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 258 transitions. [2023-12-15 22:55:25,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-15 22:55:25,921 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:25,921 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:25,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 22:55:26,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:26,126 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:26,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash -395899553, now seen corresponding path program 1 times [2023-12-15 22:55:26,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298357527] [2023-12-15 22:55:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 22:55:26,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-12-15 22:55:26,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:55:26,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-12-15 22:55:26,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,223 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 22:55:26,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298357527] [2023-12-15 22:55:26,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298357527] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:26,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2040384933] [2023-12-15 22:55:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:26,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:26,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:26,225 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:26,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 22:55:26,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,313 INFO L262 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 22:55:26,321 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:26,327 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-15 22:55:26,327 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:26,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2040384933] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:26,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:26,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-15 22:55:26,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68605015] [2023-12-15 22:55:26,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:26,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:26,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:26,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:26,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:55:26,329 INFO L87 Difference]: Start difference. First operand 197 states and 258 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:55:26,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:26,362 INFO L93 Difference]: Finished difference Result 378 states and 496 transitions. [2023-12-15 22:55:26,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:26,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 73 [2023-12-15 22:55:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:26,364 INFO L225 Difference]: With dead ends: 378 [2023-12-15 22:55:26,364 INFO L226 Difference]: Without dead ends: 183 [2023-12-15 22:55:26,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:55:26,365 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 33 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:26,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 162 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:26,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-12-15 22:55:26,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 172. [2023-12-15 22:55:26,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 122 states have (on average 1.3114754098360655) internal successors, (160), 134 states have internal predecessors, (160), 26 states have call successors, (26), 23 states have call predecessors, (26), 23 states have return successors, (33), 25 states have call predecessors, (33), 26 states have call successors, (33) [2023-12-15 22:55:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 219 transitions. [2023-12-15 22:55:26,377 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 219 transitions. Word has length 73 [2023-12-15 22:55:26,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:26,377 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 219 transitions. [2023-12-15 22:55:26,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:55:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 219 transitions. [2023-12-15 22:55:26,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 22:55:26,379 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:26,379 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:26,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:26,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:26,584 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:26,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:26,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1029466637, now seen corresponding path program 1 times [2023-12-15 22:55:26,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:26,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121242056] [2023-12-15 22:55:26,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:26,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:26,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:26,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:55:26,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:55:26,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 22:55:26,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:26,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121242056] [2023-12-15 22:55:26,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121242056] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:26,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557363156] [2023-12-15 22:55:26,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:26,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:26,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:26,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:26,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 22:55:26,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:26,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 22:55:26,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 22:55:26,828 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:26,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557363156] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:26,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:26,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-15 22:55:26,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493064675] [2023-12-15 22:55:26,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:26,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:26,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:26,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:26,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:55:26,829 INFO L87 Difference]: Start difference. First operand 172 states and 219 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:55:26,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:26,863 INFO L93 Difference]: Finished difference Result 349 states and 450 transitions. [2023-12-15 22:55:26,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:55:26,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 70 [2023-12-15 22:55:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:26,865 INFO L225 Difference]: With dead ends: 349 [2023-12-15 22:55:26,865 INFO L226 Difference]: Without dead ends: 179 [2023-12-15 22:55:26,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:55:26,866 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 6 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:26,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 208 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:26,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-15 22:55:26,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 174. [2023-12-15 22:55:26,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 124 states have (on average 1.3064516129032258) internal successors, (162), 136 states have internal predecessors, (162), 26 states have call successors, (26), 23 states have call predecessors, (26), 23 states have return successors, (33), 25 states have call predecessors, (33), 26 states have call successors, (33) [2023-12-15 22:55:26,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 221 transitions. [2023-12-15 22:55:26,874 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 221 transitions. Word has length 70 [2023-12-15 22:55:26,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:26,875 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 221 transitions. [2023-12-15 22:55:26,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-12-15 22:55:26,875 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 221 transitions. [2023-12-15 22:55:26,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-15 22:55:26,875 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:26,876 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:26,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:27,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:27,081 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:27,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:27,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1905485643, now seen corresponding path program 1 times [2023-12-15 22:55:27,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:27,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057320452] [2023-12-15 22:55:27,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:27,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:27,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:27,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 22:55:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:55:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,167 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-15 22:55:27,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:27,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057320452] [2023-12-15 22:55:27,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057320452] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:27,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091278868] [2023-12-15 22:55:27,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:27,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:27,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:27,180 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:27,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 22:55:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 283 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 22:55:27,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:27,310 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:27,310 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:27,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091278868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:27,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:27,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 11 [2023-12-15 22:55:27,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615724509] [2023-12-15 22:55:27,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:27,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:55:27,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:27,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:55:27,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-15 22:55:27,311 INFO L87 Difference]: Start difference. First operand 174 states and 221 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-15 22:55:27,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:27,486 INFO L93 Difference]: Finished difference Result 625 states and 836 transitions. [2023-12-15 22:55:27,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:55:27,487 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) Word has length 70 [2023-12-15 22:55:27,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:27,489 INFO L225 Difference]: With dead ends: 625 [2023-12-15 22:55:27,489 INFO L226 Difference]: Without dead ends: 453 [2023-12-15 22:55:27,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-12-15 22:55:27,490 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 173 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:27,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 207 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:55:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-12-15 22:55:27,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 451. [2023-12-15 22:55:27,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 322 states have (on average 1.2888198757763976) internal successors, (415), 347 states have internal predecessors, (415), 69 states have call successors, (69), 63 states have call predecessors, (69), 59 states have return successors, (99), 64 states have call predecessors, (99), 69 states have call successors, (99) [2023-12-15 22:55:27,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 583 transitions. [2023-12-15 22:55:27,510 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 583 transitions. Word has length 70 [2023-12-15 22:55:27,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:27,511 INFO L495 AbstractCegarLoop]: Abstraction has 451 states and 583 transitions. [2023-12-15 22:55:27,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 4 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 4 states have call successors, (7) [2023-12-15 22:55:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 583 transitions. [2023-12-15 22:55:27,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-15 22:55:27,512 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:27,512 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:27,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:27,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:27,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:27,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:27,717 INFO L85 PathProgramCache]: Analyzing trace with hash -780414223, now seen corresponding path program 1 times [2023-12-15 22:55:27,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:27,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588188730] [2023-12-15 22:55:27,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:27,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:27,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:27,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-15 22:55:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-12-15 22:55:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 22:55:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,843 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-15 22:55:27,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588188730] [2023-12-15 22:55:27,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588188730] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:27,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257052356] [2023-12-15 22:55:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:27,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:27,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:27,866 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:27,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 22:55:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:27,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 22:55:27,931 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 22:55:28,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:55:28,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 22:55:28,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257052356] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:28,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-15 22:55:28,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10, 5] total 14 [2023-12-15 22:55:28,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163902947] [2023-12-15 22:55:28,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:28,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:55:28,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:28,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:55:28,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-12-15 22:55:28,119 INFO L87 Difference]: Start difference. First operand 451 states and 583 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:55:28,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:28,225 INFO L93 Difference]: Finished difference Result 1303 states and 1727 transitions. [2023-12-15 22:55:28,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-15 22:55:28,225 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2023-12-15 22:55:28,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:28,229 INFO L225 Difference]: With dead ends: 1303 [2023-12-15 22:55:28,229 INFO L226 Difference]: Without dead ends: 854 [2023-12-15 22:55:28,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 156 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2023-12-15 22:55:28,231 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 52 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:28,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 318 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:55:28,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2023-12-15 22:55:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 785. [2023-12-15 22:55:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 556 states have (on average 1.25) internal successors, (695), 603 states have internal predecessors, (695), 121 states have call successors, (121), 111 states have call predecessors, (121), 107 states have return successors, (177), 112 states have call predecessors, (177), 121 states have call successors, (177) [2023-12-15 22:55:28,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 993 transitions. [2023-12-15 22:55:28,269 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 993 transitions. Word has length 74 [2023-12-15 22:55:28,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:28,270 INFO L495 AbstractCegarLoop]: Abstraction has 785 states and 993 transitions. [2023-12-15 22:55:28,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 22:55:28,270 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 993 transitions. [2023-12-15 22:55:28,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-15 22:55:28,272 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:28,272 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:28,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:28,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:28,478 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:28,478 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:28,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1379216651, now seen corresponding path program 1 times [2023-12-15 22:55:28,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:28,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571346760] [2023-12-15 22:55:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 22:55:28,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:55:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-15 22:55:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-12-15 22:55:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-15 22:55:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:28,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-12-15 22:55:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,590 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-15 22:55:28,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571346760] [2023-12-15 22:55:28,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571346760] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:28,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513248603] [2023-12-15 22:55:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:28,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:28,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:28,591 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:28,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 22:55:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:28,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 22:55:28,680 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:28,747 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 22:55:28,747 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:28,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513248603] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:28,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:28,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2023-12-15 22:55:28,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012497530] [2023-12-15 22:55:28,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:28,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:55:28,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:28,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:55:28,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-12-15 22:55:28,748 INFO L87 Difference]: Start difference. First operand 785 states and 993 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 22:55:28,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:28,851 INFO L93 Difference]: Finished difference Result 1425 states and 1797 transitions. [2023-12-15 22:55:28,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:55:28,852 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 78 [2023-12-15 22:55:28,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:28,853 INFO L225 Difference]: With dead ends: 1425 [2023-12-15 22:55:28,853 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:55:28,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2023-12-15 22:55:28,856 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 31 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:28,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 469 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:55:28,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:55:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:55:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:55:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:55:28,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2023-12-15 22:55:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:28,857 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:55:28,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (9), 3 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 22:55:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:55:28,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:55:28,859 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:55:28,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:29,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 22:55:29,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:55:31,937 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 362 369) no Hoare annotation was computed. [2023-12-15 22:55:31,938 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 362 369) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (< ~methaneLevelCritical~0 1)) (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 .cse2))) [2023-12-15 22:55:31,938 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 295 301) no Hoare annotation was computed. [2023-12-15 22:55:31,938 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 295 301) the Hoare annotation is: true [2023-12-15 22:55:31,938 INFO L899 garLoopResultBuilder]: For program point L128-1(lines 124 135) no Hoare annotation was computed. [2023-12-15 22:55:31,939 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 124 135) the Hoare annotation is: (let ((.cse5 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0))) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (< ~pumpRunning~0 1)) (.cse0 (<= 1 ~methaneLevelCritical~0)) (.cse2 (< |old(~methaneLevelCritical~0)| 1)) (.cse7 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse3) (or .cse5 .cse1 .cse6 .cse3) (or .cse4 .cse0 .cse2 (< ~waterLevel~0 2) .cse7))) [2023-12-15 22:55:31,939 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 124 135) no Hoare annotation was computed. [2023-12-15 22:55:31,939 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 845 874) no Hoare annotation was computed. [2023-12-15 22:55:31,940 INFO L899 garLoopResultBuilder]: For program point L859(lines 859 863) no Hoare annotation was computed. [2023-12-15 22:55:31,940 INFO L902 garLoopResultBuilder]: At program point L859-1(lines 859 863) the Hoare annotation is: true [2023-12-15 22:55:31,940 INFO L902 garLoopResultBuilder]: At program point L855-2(lines 855 869) the Hoare annotation is: true [2023-12-15 22:55:31,940 INFO L902 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: true [2023-12-15 22:55:31,940 INFO L899 garLoopResultBuilder]: For program point L851-1(line 851) no Hoare annotation was computed. [2023-12-15 22:55:31,940 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 845 874) the Hoare annotation is: true [2023-12-15 22:55:31,940 INFO L899 garLoopResultBuilder]: For program point L870(lines 845 874) no Hoare annotation was computed. [2023-12-15 22:55:31,940 INFO L899 garLoopResultBuilder]: For program point L866(line 866) no Hoare annotation was computed. [2023-12-15 22:55:31,940 INFO L899 garLoopResultBuilder]: For program point L275-1(lines 274 293) no Hoare annotation was computed. [2023-12-15 22:55:31,941 INFO L899 garLoopResultBuilder]: For program point L337(lines 337 345) no Hoare annotation was computed. [2023-12-15 22:55:31,941 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 350) no Hoare annotation was computed. [2023-12-15 22:55:31,943 INFO L895 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse8 (<= 1 ~pumpRunning~0)) (.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (and .cse8 .cse9)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse6 (not .cse2)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or (< |old(~waterLevel~0)| 2) .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse5 .cse0 .cse1 .cse2) (or .cse7 (and .cse8 (= ~methAndRunningLastTime~0 0) .cse9) .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse6) (or .cse4 .cse7 .cse5) (or .cse4 .cse7 .cse3)))) [2023-12-15 22:55:31,943 INFO L899 garLoopResultBuilder]: For program point L375-1(line 375) no Hoare annotation was computed. [2023-12-15 22:55:31,943 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 84) no Hoare annotation was computed. [2023-12-15 22:55:31,943 INFO L899 garLoopResultBuilder]: For program point L70(lines 70 87) no Hoare annotation was computed. [2023-12-15 22:55:31,943 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 62 90) no Hoare annotation was computed. [2023-12-15 22:55:31,944 INFO L895 garLoopResultBuilder]: At program point L343(line 343) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0))) (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse6 (not .cse2)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse5 (and (<= 1 ~pumpRunning~0) (<= ~waterLevel~0 |old(~waterLevel~0)|)) .cse1 .cse2) (or (< |old(~waterLevel~0)| 2) .cse1 .cse2 .cse3) (or .cse4 .cse3 .cse6) (or .cse4 .cse0 .cse5) (or .cse4 .cse0 .cse3)))) [2023-12-15 22:55:31,945 INFO L895 garLoopResultBuilder]: At program point L339(line 339) the Hoare annotation is: (let ((.cse5 (= 0 ~systemActive~0))) (let ((.cse7 (<= 1 ~pumpRunning~0)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not .cse5))) (let ((.cse3 (and .cse7 (<= 1 |timeShift_processEnvironment_~tmp~3#1|) .cse8 .cse2)) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse9 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse6 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 (< |old(~waterLevel~0)| 2) .cse4 .cse5 .cse6) (or .cse1 .cse4 .cse5 (and .cse7 .cse8 .cse2)) (or .cse0 .cse6 .cse2) (or .cse9 .cse3 .cse4 .cse5 .cse6) (or .cse0 .cse9 .cse1) (or .cse0 .cse9 .cse6))))) [2023-12-15 22:55:31,946 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2023-12-15 22:55:31,946 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 271 294) the Hoare annotation is: (let ((.cse4 (= 0 ~systemActive~0)) (.cse11 (<= 2 ~waterLevel~0)) (.cse15 (= ~pumpRunning~0 0)) (.cse14 (= ~methAndRunningLastTime~0 0)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse7 (and .cse15 .cse14 .cse12)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse3 (and .cse15 .cse14 .cse11 .cse12)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (<= 1 ~pumpRunning~0)) (.cse13 (< |old(~pumpRunning~0)| 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (and .cse15 .cse12 .cse4)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse9 (not .cse4))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse0 .cse1 .cse6 .cse7 .cse4) (or .cse0 .cse6 .cse8 .cse9) (or (and .cse10 .cse11 .cse12) .cse2 .cse13 .cse4 .cse5) (or .cse11 .cse2 .cse6 .cse13 .cse4) (or .cse0 .cse1 .cse7 .cse4 .cse5) (or .cse0 .cse11 .cse2 .cse6 .cse9) (or .cse0 .cse11 .cse2 .cse5 .cse9) (or .cse6 (and .cse10 .cse12) .cse13 .cse4) (or .cse0 .cse1 .cse2 .cse6 .cse3 .cse4) (or .cse1 (and .cse10 .cse14 .cse12) .cse13 .cse4 .cse5) (or .cse0 .cse8 .cse5 .cse9)))) [2023-12-15 22:55:31,946 INFO L899 garLoopResultBuilder]: For program point L104(lines 104 108) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L839(line 839) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L104-2(lines 100 111) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L895 garLoopResultBuilder]: At program point L348(line 348) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse10 (= ~pumpRunning~0 0)) (.cse11 (= ~methAndRunningLastTime~0 0)) (.cse12 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse8 (and .cse10 .cse11 (<= 2 ~waterLevel~0) .cse12)) (.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse7 (< |old(~waterLevel~0)| 2)) (.cse1 (< |old(~pumpRunning~0)| 1)) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse9 (and .cse10 .cse11 .cse12)) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (< ~methaneLevelCritical~0 1)) (.cse6 (not .cse2))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2 .cse4) (or .cse5 .cse0 .cse6) (or .cse5 .cse3 .cse7 .cse0 .cse8) (or .cse5 .cse3 .cse7 .cse8 .cse4) (or .cse5 .cse3 .cse0 .cse9) (or .cse7 .cse1 .cse2 .cse4) (or .cse5 .cse3 .cse9 .cse4) (or .cse5 .cse4 .cse6)))) [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L348-1(lines 329 353) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L282-1(lines 282 288) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 271 294) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 839) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L895 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: (let ((.cse7 (= 0 ~systemActive~0))) (let ((.cse3 (not .cse7)) (.cse4 (<= 1 ~pumpRunning~0)) (.cse11 (<= 2 ~waterLevel~0)) (.cse14 (= ~pumpRunning~0 0)) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse2 (and .cse14 .cse5)) (.cse6 (< |old(~pumpRunning~0)| 1)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse13 (and .cse4 (= ~methAndRunningLastTime~0 0) .cse11 .cse5)) (.cse12 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse9 (< ~methaneLevelCritical~0 1)) (.cse8 (and .cse14 .cse5 .cse3))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 (and .cse4 .cse5) .cse6 .cse7 .cse8) (or .cse0 .cse2 .cse9 .cse3) (or .cse0 .cse10 .cse11 .cse12 .cse1) (or .cse12 .cse6 .cse7 .cse9 .cse8) (or .cse0 .cse11 .cse12 .cse1 .cse3) (or .cse10 .cse6 .cse7 .cse9 .cse8) (or .cse0 .cse13 .cse10 .cse1 .cse7 .cse8) (or .cse0 .cse11 .cse12 .cse9 .cse3) (or (and .cse14 .cse11 .cse5 .cse3) .cse0 .cse13 .cse10 .cse12 .cse7 .cse9) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse10 .cse7 .cse9 .cse8))))) [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L68-1(line 68) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 136 144) the Hoare annotation is: true [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 136 144) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L259(lines 196 263) no Hoare annotation was computed. [2023-12-15 22:55:31,947 INFO L899 garLoopResultBuilder]: For program point L226(lines 226 232) no Hoare annotation was computed. [2023-12-15 22:55:31,963 INFO L899 garLoopResultBuilder]: For program point L226-1(lines 226 232) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point L449(lines 449 455) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 449 455) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L895 garLoopResultBuilder]: At program point L218(line 218) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse7 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse7 .cse3 .cse4) (and .cse5 .cse7 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse6))) [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L895 garLoopResultBuilder]: At program point L256(lines 205 257) the Hoare annotation is: false [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 250) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L895 garLoopResultBuilder]: At program point L244-2(lines 236 251) the Hoare annotation is: (let ((.cse6 (= 0 ~systemActive~0))) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (<= 1 ~methaneLevelCritical~0)) (.cse7 (<= 1 ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse8 (not .cse6))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse5 .cse3 .cse4) (and .cse0 .cse5 .cse3 .cse4 .cse6) (and .cse7 .cse5 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse8) (and .cse0 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse5 .cse3 .cse4 .cse8) (and .cse7 .cse2 .cse3 .cse4 .cse8)))) [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point L207(lines 206 255) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point L236(lines 236 251) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:55:31,964 INFO L895 garLoopResultBuilder]: At program point L228(line 228) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse7 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse7 .cse3 .cse4) (and .cse5 .cse7 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse6))) [2023-12-15 22:55:31,965 INFO L895 garLoopResultBuilder]: At program point L451(line 451) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1 .cse2 .cse3) (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2 .cse3))) [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point L930(lines 930 937) no Hoare annotation was computed. [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point L930-2(lines 930 937) no Hoare annotation was computed. [2023-12-15 22:55:31,965 INFO L895 garLoopResultBuilder]: At program point L253(lines 206 255) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse5 (<= 1 ~pumpRunning~0)) (.cse7 (<= 1 ~methaneLevelCritical~0)) (.cse3 (= |ULTIMATE.start_main_~tmp~8#1| 1)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse2 .cse3 .cse4 .cse6) (and .cse0 .cse1 .cse7 .cse3 .cse4) (and .cse5 .cse7 (<= 2 ~waterLevel~0) .cse3 .cse4 .cse6))) [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point L216(lines 216 222) no Hoare annotation was computed. [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point L216-1(lines 216 222) no Hoare annotation was computed. [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point L322-1(lines 303 327) no Hoare annotation was computed. [2023-12-15 22:55:31,965 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 303 327) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or .cse0 .cse1 .cse4 .cse2 .cse3) (or (<= 1 ~pumpRunning~0) .cse4 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 177 190) no Hoare annotation was computed. [2023-12-15 22:55:31,965 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse4 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0)))) (and (or .cse0 (< |old(~pumpRunning~0)| 1) .cse1) (or .cse2 .cse0 .cse1 .cse3 .cse4) (or .cse2 .cse1 .cse3 (< ~methaneLevelCritical~0 1) .cse4))) [2023-12-15 22:55:31,965 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 303 327) no Hoare annotation was computed. [2023-12-15 22:55:31,966 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 319) no Hoare annotation was computed. [2023-12-15 22:55:31,966 INFO L899 garLoopResultBuilder]: For program point L181(lines 181 187) no Hoare annotation was computed. [2023-12-15 22:55:31,966 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 324) no Hoare annotation was computed. [2023-12-15 22:55:31,966 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 439) no Hoare annotation was computed. [2023-12-15 22:55:31,966 INFO L899 garLoopResultBuilder]: For program point L435-2(lines 435 439) no Hoare annotation was computed. [2023-12-15 22:55:31,967 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse3 (< ~methaneLevelCritical~0 1)) (or (<= 1 ~pumpRunning~0) .cse1 (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-15 22:55:31,967 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 112 123) no Hoare annotation was computed. [2023-12-15 22:55:31,967 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 112 123) the Hoare annotation is: (let ((.cse9 (<= 2 ~waterLevel~0)) (.cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse4 (and .cse9 .cse2)) (.cse5 (< ~pumpRunning~0 1)) (.cse7 (= 0 ~systemActive~0)) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse6 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= ~pumpRunning~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0))) (.cse8 (< ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse4 .cse5 .cse6 .cse1 .cse7 .cse3) (or .cse5 .cse1 .cse2 .cse7 .cse3) (or .cse0 .cse9 .cse6 .cse1 .cse3) (or .cse0 .cse9 .cse6 .cse3 .cse8) (or .cse0 .cse2 .cse3 .cse8)))) [2023-12-15 22:55:31,967 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2023-12-15 22:55:31,970 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:31,971 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:55:31,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:55:31 BoogieIcfgContainer [2023-12-15 22:55:31,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:55:31,987 INFO L158 Benchmark]: Toolchain (without parser) took 9232.67ms. Allocated memory was 248.5MB in the beginning and 358.6MB in the end (delta: 110.1MB). Free memory was 193.4MB in the beginning and 321.0MB in the end (delta: -127.6MB). Peak memory consumption was 156.6MB. Max. memory is 8.0GB. [2023-12-15 22:55:31,987 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 158.0MB in the beginning and 157.9MB in the end (delta: 181.9kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:55:31,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.20ms. Allocated memory is still 248.5MB. Free memory was 193.4MB in the beginning and 173.4MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 22:55:31,987 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.79ms. Allocated memory is still 248.5MB. Free memory was 173.4MB in the beginning and 171.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:31,988 INFO L158 Benchmark]: Boogie Preprocessor took 35.47ms. Allocated memory is still 248.5MB. Free memory was 171.3MB in the beginning and 168.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:31,988 INFO L158 Benchmark]: RCFGBuilder took 388.52ms. Allocated memory is still 248.5MB. Free memory was 168.9MB in the beginning and 200.1MB in the end (delta: -31.2MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:31,989 INFO L158 Benchmark]: TraceAbstraction took 8489.42ms. Allocated memory was 248.5MB in the beginning and 358.6MB in the end (delta: 110.1MB). Free memory was 199.6MB in the beginning and 321.0MB in the end (delta: -121.4MB). Peak memory consumption was 162.3MB. Max. memory is 8.0GB. [2023-12-15 22:55:31,992 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 206.6MB. Free memory was 158.0MB in the beginning and 157.9MB in the end (delta: 181.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 276.20ms. Allocated memory is still 248.5MB. Free memory was 193.4MB in the beginning and 173.4MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.79ms. Allocated memory is still 248.5MB. Free memory was 173.4MB in the beginning and 171.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.47ms. Allocated memory is still 248.5MB. Free memory was 171.3MB in the beginning and 168.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 388.52ms. Allocated memory is still 248.5MB. Free memory was 168.9MB in the beginning and 200.1MB in the end (delta: -31.2MB). Peak memory consumption was 11.1MB. Max. memory is 8.0GB. * TraceAbstraction took 8489.42ms. Allocated memory was 248.5MB in the beginning and 358.6MB in the end (delta: 110.1MB). Free memory was 199.6MB in the beginning and 321.0MB in the end (delta: -121.4MB). Peak memory consumption was 162.3MB. 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,"Specification2_spec.i","") [49] - GenericResultAtLocation [Line: 91]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [91] - GenericResultAtLocation [Line: 191]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [191] - GenericResultAtLocation [Line: 264]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [264] - GenericResultAtLocation [Line: 468]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [468] - GenericResultAtLocation [Line: 834]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [834] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [843] - GenericResultAtLocation [Line: 943]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [943] * 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: 839]: 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, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 593 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 570 mSDsluCounter, 2440 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1454 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 741 IncrementalHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 986 mSDtfsCounter, 741 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 798 GetRequests, 724 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=785occurred in iteration=11, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 109 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 24 LocationsWithAnnotation, 1047 PreInvPairs, 1190 NumberOfFragments, 1834 HoareAnnotationTreeSize, 1047 FormulaSimplifications, 96 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 24 FormulaSimplificationsInter, 8275 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1176 NumberOfCodeBlocks, 1176 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1229 ConstructedInterpolants, 0 QuantifiedInterpolants, 2073 SizeOfPredicates, 10 NumberOfNonLiveVariables, 2236 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 21 InterpolantComputations, 12 PerfectInterpolantSequences, 443/462 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: 206]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (splverifierCounter == 0)) || ((((((1 <= pumpRunning) && (methAndRunningLastTime == 0)) && (methaneLevelCritical == 0)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || (((((pumpRunning == 0) && (methAndRunningLastTime == 0)) && (1 <= methaneLevelCritical)) && (tmp == 1)) && (splverifierCounter == 0))) || ((((((1 <= pumpRunning) && (1 <= methaneLevelCritical)) && (2 <= waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 855]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-15 22:55:32,015 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...