/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 false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 05:44:40,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 05:44:40,380 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 05:44:40,384 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 05:44:40,384 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 05:44:40,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 05:44:40,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 05:44:40,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 05:44:40,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 05:44:40,411 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 05:44:40,411 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 05:44:40,411 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 05:44:40,412 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 05:44:40,413 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 05:44:40,413 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 05:44:40,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 05:44:40,413 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 05:44:40,414 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 05:44:40,414 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 05:44:40,414 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 05:44:40,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 05:44:40,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 05:44:40,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 05:44:40,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 05:44:40,415 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 05:44:40,415 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 05:44:40,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 05:44:40,415 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 05:44:40,416 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 05:44:40,416 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:44:40,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 05:44:40,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 05:44:40,418 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 05:44:40,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 05:44:40,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 05:44:40,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 05:44:40,418 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 05:44:40,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 05:44:40,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 05:44:40,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 05:44:40,635 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 05:44:40,635 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 05:44:40,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2023-12-16 05:44:41,710 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 05:44:41,924 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 05:44:41,924 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2023-12-16 05:44:41,940 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1197e396/940dc223bab546099ad02f73795ec9db/FLAG9580c5a38 [2023-12-16 05:44:41,952 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1197e396/940dc223bab546099ad02f73795ec9db [2023-12-16 05:44:41,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 05:44:41,955 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 05:44:41,957 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 05:44:41,957 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 05:44:41,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 05:44:41,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:44:41" (1/1) ... [2023-12-16 05:44:41,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d5252c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:41, skipping insertion in model container [2023-12-16 05:44:41,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:44:41" (1/1) ... [2023-12-16 05:44:41,998 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 05:44:42,205 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_product57.cil.c[19040,19053] [2023-12-16 05:44:42,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:44:42,221 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 05:44:42,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-16 05:44:42,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-12-16 05:44:42,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] [2023-12-16 05:44:42,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] [2023-12-16 05:44:42,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] [2023-12-16 05:44:42,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] [2023-12-16 05:44:42,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2023-12-16 05:44:42,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] [2023-12-16 05:44:42,291 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_product57.cil.c[19040,19053] [2023-12-16 05:44:42,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 05:44:42,304 INFO L206 MainTranslator]: Completed translation [2023-12-16 05:44:42,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42 WrapperNode [2023-12-16 05:44:42,305 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 05:44:42,306 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 05:44:42,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 05:44:42,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 05:44:42,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,329 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,348 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 223 [2023-12-16 05:44:42,349 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 05:44:42,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 05:44:42,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 05:44:42,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 05:44:42,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,368 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,378 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]. [2023-12-16 05:44:42,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,379 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,388 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,389 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 05:44:42,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 05:44:42,391 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 05:44:42,391 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 05:44:42,391 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (1/1) ... [2023-12-16 05:44:42,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 05:44:42,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:44:42,436 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) [2023-12-16 05:44:42,463 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 [2023-12-16 05:44:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 05:44:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-16 05:44:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-16 05:44:42,481 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-16 05:44:42,481 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-16 05:44:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-16 05:44:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-16 05:44:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-16 05:44:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-16 05:44:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 05:44:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-16 05:44:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-16 05:44:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-16 05:44:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 05:44:42,482 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-16 05:44:42,482 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-16 05:44:42,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 05:44:42,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 05:44:42,552 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 05:44:42,556 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 05:44:42,801 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 05:44:42,857 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 05:44:42,858 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-16 05:44:42,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:44:42 BoogieIcfgContainer [2023-12-16 05:44:42,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 05:44:42,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 05:44:42,860 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 05:44:42,862 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 05:44:42,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:44:41" (1/3) ... [2023-12-16 05:44:42,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13551808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:44:42, skipping insertion in model container [2023-12-16 05:44:42,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:44:42" (2/3) ... [2023-12-16 05:44:42,863 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13551808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:44:42, skipping insertion in model container [2023-12-16 05:44:42,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:44:42" (3/3) ... [2023-12-16 05:44:42,864 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2023-12-16 05:44:42,877 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 05:44:42,878 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 05:44:42,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 05:44:42,943 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;@317ea3b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 05:44:42,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 05:44:42,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2023-12-16 05:44:42,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-16 05:44:42,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:42,960 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:42,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:42,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:42,963 INFO L85 PathProgramCache]: Analyzing trace with hash 756597807, now seen corresponding path program 1 times [2023-12-16 05:44:42,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:42,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986316714] [2023-12-16 05:44:42,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:42,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-16 05:44:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:44:43,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:43,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986316714] [2023-12-16 05:44:43,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986316714] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:43,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:43,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 05:44:43,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434601392] [2023-12-16 05:44:43,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:43,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 05:44:43,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:43,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 05:44:43,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 05:44:43,141 INFO L87 Difference]: Start difference. First operand has 72 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 59 states have internal predecessors, (79), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-16 05:44:43,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:43,187 INFO L93 Difference]: Finished difference Result 142 states and 207 transitions. [2023-12-16 05:44:43,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 05:44:43,189 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 [2023-12-16 05:44:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:43,197 INFO L225 Difference]: With dead ends: 142 [2023-12-16 05:44:43,197 INFO L226 Difference]: Without dead ends: 67 [2023-12-16 05:44:43,201 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 [2023-12-16 05:44:43,203 INFO L413 NwaCegarLoop]: 83 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, 83 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 [2023-12-16 05:44:43,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:44:43,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-16 05:44:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-16 05:44:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 48 states have (on average 1.4375) internal successors, (69), 55 states have internal predecessors, (69), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2023-12-16 05:44:43,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2023-12-16 05:44:43,246 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 17 [2023-12-16 05:44:43,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:43,246 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2023-12-16 05:44:43,247 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) [2023-12-16 05:44:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2023-12-16 05:44:43,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-16 05:44:43,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:43,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:43,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 05:44:43,249 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:43,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:43,251 INFO L85 PathProgramCache]: Analyzing trace with hash -2122968829, now seen corresponding path program 1 times [2023-12-16 05:44:43,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:43,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509855094] [2023-12-16 05:44:43,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:43,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-16 05:44:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:44:43,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:43,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509855094] [2023-12-16 05:44:43,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509855094] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:43,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:43,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 05:44:43,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759728939] [2023-12-16 05:44:43,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:43,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:44:43,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:43,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:44:43,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 05:44:43,344 INFO L87 Difference]: Start difference. First operand 67 states and 92 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) [2023-12-16 05:44:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:43,381 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2023-12-16 05:44:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:44:43,384 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 [2023-12-16 05:44:43,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:43,385 INFO L225 Difference]: With dead ends: 107 [2023-12-16 05:44:43,385 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 05:44:43,386 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 [2023-12-16 05:44:43,387 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 11 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:43,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 124 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:44:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 05:44:43,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-16 05:44:43,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.4651162790697674) internal successors, (63), 50 states have internal predecessors, (63), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 05:44:43,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-12-16 05:44:43,397 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2023-12-16 05:44:43,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:43,398 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-12-16 05:44:43,398 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) [2023-12-16 05:44:43,398 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2023-12-16 05:44:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-16 05:44:43,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:43,399 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] [2023-12-16 05:44:43,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 05:44:43,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:43,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash 179426806, now seen corresponding path program 1 times [2023-12-16 05:44:43,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:43,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707521906] [2023-12-16 05:44:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:43,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:44:43,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:43,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707521906] [2023-12-16 05:44:43,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707521906] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:43,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:43,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 05:44:43,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336083684] [2023-12-16 05:44:43,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:43,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 05:44:43,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:43,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 05:44:43,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 05:44:43,484 INFO L87 Difference]: Start difference. First operand 59 states and 81 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) [2023-12-16 05:44:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:43,579 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2023-12-16 05:44:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 05:44:43,580 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 [2023-12-16 05:44:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:43,581 INFO L225 Difference]: With dead ends: 116 [2023-12-16 05:44:43,581 INFO L226 Difference]: Without dead ends: 59 [2023-12-16 05:44:43,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:44:43,583 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 80 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:43,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 102 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:44:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-16 05:44:43,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-16 05:44:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 43 states have (on average 1.441860465116279) internal successors, (62), 50 states have internal predecessors, (62), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2023-12-16 05:44:43,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-12-16 05:44:43,589 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 21 [2023-12-16 05:44:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:43,590 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-12-16 05:44:43,590 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) [2023-12-16 05:44:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-12-16 05:44:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-16 05:44:43,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:43,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:43,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 05:44:43,591 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:43,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:43,592 INFO L85 PathProgramCache]: Analyzing trace with hash 11069496, now seen corresponding path program 1 times [2023-12-16 05:44:43,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:43,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683414854] [2023-12-16 05:44:43,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:43,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 05:44:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:44:43,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:43,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683414854] [2023-12-16 05:44:43,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683414854] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:43,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:43,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 05:44:43,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785540524] [2023-12-16 05:44:43,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:43,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:44:43,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:44:43,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 05:44:43,655 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-12-16 05:44:43,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:43,692 INFO L93 Difference]: Finished difference Result 156 states and 214 transitions. [2023-12-16 05:44:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:44:43,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 26 [2023-12-16 05:44:43,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:43,694 INFO L225 Difference]: With dead ends: 156 [2023-12-16 05:44:43,694 INFO L226 Difference]: Without dead ends: 99 [2023-12-16 05:44:43,695 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 [2023-12-16 05:44:43,696 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 54 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:43,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 126 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 05:44:43,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-16 05:44:43,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-12-16 05:44:43,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 71 states have (on average 1.3943661971830985) internal successors, (99), 79 states have internal predecessors, (99), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-12-16 05:44:43,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2023-12-16 05:44:43,707 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 26 [2023-12-16 05:44:43,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:43,707 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2023-12-16 05:44:43,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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) [2023-12-16 05:44:43,707 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2023-12-16 05:44:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-16 05:44:43,720 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:43,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:43,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 05:44:43,720 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:43,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:43,721 INFO L85 PathProgramCache]: Analyzing trace with hash -170334435, now seen corresponding path program 1 times [2023-12-16 05:44:43,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:43,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885980126] [2023-12-16 05:44:43,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:43,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:43,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:43,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-16 05:44:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 05:44:43,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885980126] [2023-12-16 05:44:43,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885980126] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:43,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:43,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:44:43,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131483404] [2023-12-16 05:44:43,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:43,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:44:43,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:43,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:44:43,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:44:43,857 INFO L87 Difference]: Start difference. First operand 97 states and 129 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 05:44:44,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:44,061 INFO L93 Difference]: Finished difference Result 216 states and 287 transitions. [2023-12-16 05:44:44,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 05:44:44,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2023-12-16 05:44:44,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:44,062 INFO L225 Difference]: With dead ends: 216 [2023-12-16 05:44:44,063 INFO L226 Difference]: Without dead ends: 121 [2023-12-16 05:44:44,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-16 05:44:44,064 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 95 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:44,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 186 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 05:44:44,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-16 05:44:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 115. [2023-12-16 05:44:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 84 states have (on average 1.3571428571428572) internal successors, (114), 92 states have internal predecessors, (114), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2023-12-16 05:44:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions. [2023-12-16 05:44:44,078 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 36 [2023-12-16 05:44:44,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:44,078 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions. [2023-12-16 05:44:44,079 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-16 05:44:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions. [2023-12-16 05:44:44,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 05:44:44,079 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:44,080 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:44,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 05:44:44,080 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:44,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:44,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1856002314, now seen corresponding path program 1 times [2023-12-16 05:44:44,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:44,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977020008] [2023-12-16 05:44:44,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:44,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:44,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:44:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:44:44,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:44,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977020008] [2023-12-16 05:44:44,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977020008] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:44,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:44,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:44:44,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142130867] [2023-12-16 05:44:44,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:44,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:44:44,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:44,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:44:44,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:44:44,135 INFO L87 Difference]: Start difference. First operand 115 states and 151 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 05:44:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:44,226 INFO L93 Difference]: Finished difference Result 234 states and 315 transitions. [2023-12-16 05:44:44,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:44:44,227 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2023-12-16 05:44:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:44,228 INFO L225 Difference]: With dead ends: 234 [2023-12-16 05:44:44,228 INFO L226 Difference]: Without dead ends: 121 [2023-12-16 05:44:44,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:44:44,229 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 51 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:44,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 191 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:44:44,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-16 05:44:44,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2023-12-16 05:44:44,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 86 states have (on average 1.3488372093023255) internal successors, (116), 94 states have internal predecessors, (116), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2023-12-16 05:44:44,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 153 transitions. [2023-12-16 05:44:44,244 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 153 transitions. Word has length 39 [2023-12-16 05:44:44,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:44,244 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 153 transitions. [2023-12-16 05:44:44,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 05:44:44,244 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 153 transitions. [2023-12-16 05:44:44,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 05:44:44,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:44,245 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:44,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 05:44:44,246 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:44,246 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:44,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2016263156, now seen corresponding path program 1 times [2023-12-16 05:44:44,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:44,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829256031] [2023-12-16 05:44:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:44,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:44,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:44,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:44:44,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:44:44,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:44,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829256031] [2023-12-16 05:44:44,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829256031] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:44,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:44,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:44:44,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416931565] [2023-12-16 05:44:44,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:44,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:44:44,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:44,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:44:44,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:44:44,306 INFO L87 Difference]: Start difference. First operand 117 states and 153 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 05:44:44,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:44,393 INFO L93 Difference]: Finished difference Result 241 states and 323 transitions. [2023-12-16 05:44:44,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 05:44:44,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2023-12-16 05:44:44,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:44,395 INFO L225 Difference]: With dead ends: 241 [2023-12-16 05:44:44,395 INFO L226 Difference]: Without dead ends: 126 [2023-12-16 05:44:44,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:44:44,396 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 56 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:44,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 191 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:44:44,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-16 05:44:44,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 119. [2023-12-16 05:44:44,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 88 states have (on average 1.3409090909090908) internal successors, (118), 96 states have internal predecessors, (118), 15 states have call successors, (15), 12 states have call predecessors, (15), 15 states have return successors, (22), 16 states have call predecessors, (22), 15 states have call successors, (22) [2023-12-16 05:44:44,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 155 transitions. [2023-12-16 05:44:44,405 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 155 transitions. Word has length 39 [2023-12-16 05:44:44,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:44,406 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 155 transitions. [2023-12-16 05:44:44,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 05:44:44,406 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 155 transitions. [2023-12-16 05:44:44,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 05:44:44,406 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:44,407 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:44,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-16 05:44:44,407 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:44,407 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:44,407 INFO L85 PathProgramCache]: Analyzing trace with hash 473265806, now seen corresponding path program 1 times [2023-12-16 05:44:44,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:44,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684479514] [2023-12-16 05:44:44,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:44,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 05:44:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:44:44,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:44,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684479514] [2023-12-16 05:44:44,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684479514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:44,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:44,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 05:44:44,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421310032] [2023-12-16 05:44:44,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:44,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 05:44:44,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:44,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 05:44:44,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 05:44:44,472 INFO L87 Difference]: Start difference. First operand 119 states and 155 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-16 05:44:44,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:44,667 INFO L93 Difference]: Finished difference Result 376 states and 525 transitions. [2023-12-16 05:44:44,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 05:44:44,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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 39 [2023-12-16 05:44:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:44,671 INFO L225 Difference]: With dead ends: 376 [2023-12-16 05:44:44,671 INFO L226 Difference]: Without dead ends: 259 [2023-12-16 05:44:44,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:44:44,674 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 175 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:44,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 247 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:44:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-16 05:44:44,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2023-12-16 05:44:44,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 187 states have (on average 1.3315508021390374) internal successors, (249), 200 states have internal predecessors, (249), 35 states have call successors, (35), 33 states have call predecessors, (35), 32 states have return successors, (59), 33 states have call predecessors, (59), 35 states have call successors, (59) [2023-12-16 05:44:44,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 343 transitions. [2023-12-16 05:44:44,710 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 343 transitions. Word has length 39 [2023-12-16 05:44:44,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:44,711 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 343 transitions. [2023-12-16 05:44:44,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 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) [2023-12-16 05:44:44,711 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 343 transitions. [2023-12-16 05:44:44,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-16 05:44:44,717 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:44,717 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:44,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-16 05:44:44,717 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:44,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:44,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1550628312, now seen corresponding path program 1 times [2023-12-16 05:44:44,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:44,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56444197] [2023-12-16 05:44:44,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:44,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:44,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-16 05:44:44,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-16 05:44:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-16 05:44:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:44:44,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:44,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56444197] [2023-12-16 05:44:44,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56444197] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:44,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-16 05:44:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778291729] [2023-12-16 05:44:44,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:44,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 05:44:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 05:44:44,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 05:44:44,879 INFO L87 Difference]: Start difference. First operand 255 states and 343 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 05:44:45,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:45,255 INFO L93 Difference]: Finished difference Result 828 states and 1165 transitions. [2023-12-16 05:44:45,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-16 05:44:45,255 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2023-12-16 05:44:45,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:45,258 INFO L225 Difference]: With dead ends: 828 [2023-12-16 05:44:45,258 INFO L226 Difference]: Without dead ends: 575 [2023-12-16 05:44:45,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2023-12-16 05:44:45,260 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 267 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 435 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 435 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:45,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 314 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 05:44:45,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-16 05:44:45,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 563. [2023-12-16 05:44:45,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 409 states have (on average 1.276283618581907) internal successors, (522), 441 states have internal predecessors, (522), 83 states have call successors, (83), 64 states have call predecessors, (83), 70 states have return successors, (159), 79 states have call predecessors, (159), 83 states have call successors, (159) [2023-12-16 05:44:45,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 764 transitions. [2023-12-16 05:44:45,293 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 764 transitions. Word has length 43 [2023-12-16 05:44:45,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:45,294 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 764 transitions. [2023-12-16 05:44:45,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-16 05:44:45,294 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 764 transitions. [2023-12-16 05:44:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-16 05:44:45,296 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:45,296 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:45,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 05:44:45,296 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:45,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:45,296 INFO L85 PathProgramCache]: Analyzing trace with hash -625871405, now seen corresponding path program 1 times [2023-12-16 05:44:45,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:45,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038400923] [2023-12-16 05:44:45,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:45,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-16 05:44:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 05:44:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:44:45,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:44:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 05:44:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-16 05:44:45,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,453 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-16 05:44:45,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:45,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038400923] [2023-12-16 05:44:45,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038400923] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:44:45,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2120115443] [2023-12-16 05:44:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:45,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:44:45,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:44:45,455 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) [2023-12-16 05:44:45,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 05:44:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:45,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 05:44:45,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:44:45,715 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:44:45,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 05:44:45,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2120115443] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:45,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 05:44:45,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-16 05:44:45,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922712577] [2023-12-16 05:44:45,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:45,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 05:44:45,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:45,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 05:44:45,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:44:45,716 INFO L87 Difference]: Start difference. First operand 563 states and 764 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 05:44:45,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:45,873 INFO L93 Difference]: Finished difference Result 951 states and 1322 transitions. [2023-12-16 05:44:45,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 05:44:45,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2023-12-16 05:44:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:45,879 INFO L225 Difference]: With dead ends: 951 [2023-12-16 05:44:45,879 INFO L226 Difference]: Without dead ends: 949 [2023-12-16 05:44:45,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-16 05:44:45,880 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:45,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 131 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:44:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2023-12-16 05:44:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 845. [2023-12-16 05:44:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 845 states, 615 states have (on average 1.2926829268292683) internal successors, (795), 666 states have internal predecessors, (795), 127 states have call successors, (127), 97 states have call predecessors, (127), 102 states have return successors, (277), 109 states have call predecessors, (277), 127 states have call successors, (277) [2023-12-16 05:44:46,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1199 transitions. [2023-12-16 05:44:46,024 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1199 transitions. Word has length 80 [2023-12-16 05:44:46,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:46,025 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1199 transitions. [2023-12-16 05:44:46,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-16 05:44:46,025 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1199 transitions. [2023-12-16 05:44:46,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 05:44:46,032 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:46,032 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:46,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 05:44:46,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-16 05:44:46,238 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:46,238 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:46,238 INFO L85 PathProgramCache]: Analyzing trace with hash 735775505, now seen corresponding path program 1 times [2023-12-16 05:44:46,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:46,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806614934] [2023-12-16 05:44:46,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:46,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:46,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-16 05:44:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 05:44:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:46,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:44:46,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:44:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:44:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:44:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 05:44:46,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:44:46,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:44:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:44:46,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 44 proven. 11 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 05:44:46,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:46,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806614934] [2023-12-16 05:44:46,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806614934] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:44:46,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315338277] [2023-12-16 05:44:46,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:46,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:44:46,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:44:46,760 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) [2023-12-16 05:44:46,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 05:44:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:46,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 05:44:46,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:44:47,071 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 65 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-16 05:44:47,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:44:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 05:44:47,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315338277] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:44:47,326 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:44:47,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 17 [2023-12-16 05:44:47,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681289080] [2023-12-16 05:44:47,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:44:47,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 05:44:47,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:47,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 05:44:47,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:44:47,329 INFO L87 Difference]: Start difference. First operand 845 states and 1199 transitions. Second operand has 17 states, 17 states have (on average 7.588235294117647) internal successors, (129), 13 states have internal predecessors, (129), 9 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (29), 9 states have call predecessors, (29), 9 states have call successors, (29) [2023-12-16 05:44:48,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:48,038 INFO L93 Difference]: Finished difference Result 1710 states and 2482 transitions. [2023-12-16 05:44:48,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-16 05:44:48,038 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 7.588235294117647) internal successors, (129), 13 states have internal predecessors, (129), 9 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (29), 9 states have call predecessors, (29), 9 states have call successors, (29) Word has length 119 [2023-12-16 05:44:48,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:48,043 INFO L225 Difference]: With dead ends: 1710 [2023-12-16 05:44:48,043 INFO L226 Difference]: Without dead ends: 867 [2023-12-16 05:44:48,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 256 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=241, Invalid=571, Unknown=0, NotChecked=0, Total=812 [2023-12-16 05:44:48,051 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 514 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:48,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 102 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 05:44:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-12-16 05:44:48,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 795. [2023-12-16 05:44:48,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 582 states have (on average 1.3075601374570447) internal successors, (761), 626 states have internal predecessors, (761), 114 states have call successors, (114), 93 states have call predecessors, (114), 98 states have return successors, (240), 98 states have call predecessors, (240), 114 states have call successors, (240) [2023-12-16 05:44:48,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1115 transitions. [2023-12-16 05:44:48,141 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1115 transitions. Word has length 119 [2023-12-16 05:44:48,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:48,142 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1115 transitions. [2023-12-16 05:44:48,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 7.588235294117647) internal successors, (129), 13 states have internal predecessors, (129), 9 states have call successors, (30), 10 states have call predecessors, (30), 12 states have return successors, (29), 9 states have call predecessors, (29), 9 states have call successors, (29) [2023-12-16 05:44:48,143 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1115 transitions. [2023-12-16 05:44:48,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-16 05:44:48,148 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:48,148 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:48,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 05:44:48,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-16 05:44:48,356 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:48,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:48,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1771611859, now seen corresponding path program 1 times [2023-12-16 05:44:48,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:48,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752932937] [2023-12-16 05:44:48,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:48,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-16 05:44:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 05:44:48,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:44:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:44:48,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:44:48,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:44:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:48,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 05:44:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-16 05:44:48,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-16 05:44:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,564 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 50 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 05:44:48,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:48,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752932937] [2023-12-16 05:44:48,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752932937] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 05:44:48,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002012633] [2023-12-16 05:44:48,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:48,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:44:48,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 05:44:48,565 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) [2023-12-16 05:44:48,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 05:44:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:48,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 05:44:48,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 05:44:48,777 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 70 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 05:44:48,777 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 05:44:48,913 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 05:44:48,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002012633] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 05:44:48,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 05:44:48,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 17 [2023-12-16 05:44:48,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114002082] [2023-12-16 05:44:48,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 05:44:48,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-16 05:44:48,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-16 05:44:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-12-16 05:44:48,915 INFO L87 Difference]: Start difference. First operand 795 states and 1115 transitions. Second operand has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 14 states have internal predecessors, (116), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-12-16 05:44:50,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:50,041 INFO L93 Difference]: Finished difference Result 2808 states and 4959 transitions. [2023-12-16 05:44:50,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-16 05:44:50,041 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 14 states have internal predecessors, (116), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) Word has length 115 [2023-12-16 05:44:50,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:50,053 INFO L225 Difference]: With dead ends: 2808 [2023-12-16 05:44:50,054 INFO L226 Difference]: Without dead ends: 2015 [2023-12-16 05:44:50,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 255 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722 [2023-12-16 05:44:50,058 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 434 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1438 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:50,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 644 Invalid, 1600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1438 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-16 05:44:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-12-16 05:44:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1204. [2023-12-16 05:44:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1204 states, 871 states have (on average 1.2835820895522387) internal successors, (1118), 934 states have internal predecessors, (1118), 168 states have call successors, (168), 144 states have call predecessors, (168), 164 states have return successors, (398), 153 states have call predecessors, (398), 168 states have call successors, (398) [2023-12-16 05:44:50,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1684 transitions. [2023-12-16 05:44:50,161 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1684 transitions. Word has length 115 [2023-12-16 05:44:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:50,161 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 1684 transitions. [2023-12-16 05:44:50,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.823529411764706) internal successors, (116), 14 states have internal predecessors, (116), 6 states have call successors, (30), 10 states have call predecessors, (30), 6 states have return successors, (22), 6 states have call predecessors, (22), 6 states have call successors, (22) [2023-12-16 05:44:50,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1684 transitions. [2023-12-16 05:44:50,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-16 05:44:50,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 05:44:50,164 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:50,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 05:44:50,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 05:44:50,370 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 05:44:50,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 05:44:50,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1113384559, now seen corresponding path program 1 times [2023-12-16 05:44:50,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 05:44:50,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089275609] [2023-12-16 05:44:50,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 05:44:50,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 05:44:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-16 05:44:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-16 05:44:50,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-16 05:44:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 05:44:50,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 05:44:50,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-16 05:44:50,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 05:44:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 05:44:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-16 05:44:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-16 05:44:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 05:44:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 05:44:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-16 05:44:50,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 05:44:50,454 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-16 05:44:50,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 05:44:50,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089275609] [2023-12-16 05:44:50,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089275609] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 05:44:50,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 05:44:50,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 05:44:50,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107450215] [2023-12-16 05:44:50,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 05:44:50,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 05:44:50,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 05:44:50,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 05:44:50,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 05:44:50,456 INFO L87 Difference]: Start difference. First operand 1204 states and 1684 transitions. Second operand has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:44:50,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 05:44:50,671 INFO L93 Difference]: Finished difference Result 1609 states and 2171 transitions. [2023-12-16 05:44:50,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-16 05:44:50,672 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2023-12-16 05:44:50,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 05:44:50,672 INFO L225 Difference]: With dead ends: 1609 [2023-12-16 05:44:50,672 INFO L226 Difference]: Without dead ends: 0 [2023-12-16 05:44:50,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2023-12-16 05:44:50,710 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 181 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 05:44:50,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 79 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 05:44:50,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-16 05:44:50,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-16 05:44:50,711 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) [2023-12-16 05:44:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-16 05:44:50,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2023-12-16 05:44:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 05:44:50,712 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-16 05:44:50,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.5) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (11), 6 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 05:44:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-16 05:44:50,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-16 05:44:50,714 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 05:44:50,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 05:44:50,715 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-16 05:44:52,473 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 370 376) no Hoare annotation was computed. [2023-12-16 05:44:52,473 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 370 376) the Hoare annotation is: true [2023-12-16 05:44:52,473 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 122 133) no Hoare annotation was computed. [2023-12-16 05:44:52,473 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 122 133) the Hoare annotation is: (let ((.cse0 (< 2 ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= ~methaneLevelCritical~0 0) (< ~waterLevel~0 2) .cse1 .cse2) (or .cse0 (not (= ~pumpRunning~0 0)) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) .cse1 .cse2))) [2023-12-16 05:44:52,473 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 122 133) no Hoare annotation was computed. [2023-12-16 05:44:52,473 INFO L899 garLoopResultBuilder]: For program point L547-2(lines 547 551) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L993(line 993) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L102-2(lines 98 109) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 349 368) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L895 garLoopResultBuilder]: At program point L317(line 317) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0)) (.cse9 (= |old(~methAndRunningLastTime~0)| 0)) (.cse8 (= 2 ~waterLevel~0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse10)) (.cse3 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10 (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0) (<= |old(~waterLevel~0)| 1))) (.cse0 (and .cse8 (= ~methaneLevelCritical~0 0) (= |old(~waterLevel~0)| 2))) (.cse2 (not .cse9)) (.cse4 (and .cse7 (= ~methAndRunningLastTime~0 0) .cse8 .cse9 .cse10)) (.cse5 (= 0 ~systemActive~0)) (.cse6 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or (< 1 |old(~waterLevel~0)|) .cse1 .cse2 .cse3 .cse5) (or .cse0 .cse2 (< |old(~waterLevel~0)| 2) .cse4 (and .cse7 (= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse5 .cse6)))) [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 420) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L317-1(line 317) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 425) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 346 369) the Hoare annotation is: (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1) .cse2 (< |old(~waterLevel~0)| 2) .cse3 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) .cse2 (and (= ~pumpRunning~0 0) .cse0 .cse1) .cse3))) [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 333) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L895 garLoopResultBuilder]: At program point L418(line 418) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or (< 1 |old(~waterLevel~0)|) (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 (< |old(~waterLevel~0)| 2) .cse1 (< 2 |old(~waterLevel~0)|)))) [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 336) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 311 339) no Hoare annotation was computed. [2023-12-16 05:44:52,474 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 346 369) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L895 garLoopResultBuilder]: At program point L423(line 423) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= 0 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 (and .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (< |old(~waterLevel~0)| 2) .cse4 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) (not .cse2) .cse0 .cse4 (and .cse1 .cse3 (= |old(~methAndRunningLastTime~0)| ~methAndRunningLastTime~0))))) [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L423-1(lines 404 428) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 357 363) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 551) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 201 230) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L902 garLoopResultBuilder]: At program point L215-1(lines 215 219) the Hoare annotation is: true [2023-12-16 05:44:52,475 INFO L902 garLoopResultBuilder]: At program point L211-2(lines 211 225) the Hoare annotation is: true [2023-12-16 05:44:52,475 INFO L902 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: true [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 201 230) the Hoare annotation is: true [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L226(lines 201 230) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 134 142) the Hoare annotation is: true [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 134 142) no Hoare annotation was computed. [2023-12-16 05:44:52,475 INFO L895 garLoopResultBuilder]: At program point L614(lines 567 615) the Hoare annotation is: false [2023-12-16 05:44:52,475 INFO L899 garLoopResultBuilder]: For program point L569(lines 568 613) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 609) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L895 garLoopResultBuilder]: At program point L590(line 590) the Hoare annotation is: (let ((.cse3 (= 2 ~waterLevel~0)) (.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 (= ~methaneLevelCritical~0 0) .cse4 .cse5) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 1) .cse4 .cse5))) [2023-12-16 05:44:52,476 INFO L895 garLoopResultBuilder]: At program point L611(lines 568 613) the Hoare annotation is: (let ((.cse3 (= 2 ~waterLevel~0)) (.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 (= ~methaneLevelCritical~0 0) .cse4 .cse5) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 1) .cse4 .cse5))) [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 293) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L895 garLoopResultBuilder]: At program point L604-2(lines 598 609) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= ~waterLevel~0 1) .cse2 .cse3) (and .cse0 .cse1 (= 2 ~waterLevel~0) .cse2 .cse3))) [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L588(lines 588 594) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L588-1(lines 588 594) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L617(lines 558 621) no Hoare annotation was computed. [2023-12-16 05:44:52,476 INFO L895 garLoopResultBuilder]: At program point L580(line 580) the Hoare annotation is: (let ((.cse3 (= 2 ~waterLevel~0)) (.cse0 (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse5 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse0 .cse2 .cse3 (= ~methaneLevelCritical~0 0) .cse4 .cse5) (and .cse0 .cse1 .cse2 (<= ~waterLevel~0 1) .cse4 .cse5))) [2023-12-16 05:44:52,476 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 399) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L895 garLoopResultBuilder]: At program point L397(line 397) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse3))) [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 378 402) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 378 402) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= ~waterLevel~0 0))) (.cse2 (= 0 ~systemActive~0)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse2 .cse3))) [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 175 188) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 378 402) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L445-2(lines 438 454) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L895 garLoopResultBuilder]: At program point L468(line 468) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 0))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= 2 ~waterLevel~0)) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 185) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L468-1(line 468) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 528 532) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L895 garLoopResultBuilder]: At program point L392(line 392) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0))) (let ((.cse1 (not (= ~waterLevel~0 0))) (.cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~2#1| 0) .cse4 (not .cse2))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or .cse0 .cse1 .cse2 .cse3) (or (< 2 ~waterLevel~0) (not .cse4) .cse0 .cse2 .cse3)))) [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L386(lines 386 394) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 110 121) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 110 121) no Hoare annotation was computed. [2023-12-16 05:44:52,477 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 110 121) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0)) (.cse2 (< 2 |old(~waterLevel~0)|)) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or (< |old(~waterLevel~0)| 2) (not (= ~methaneLevelCritical~0 0)) .cse0 .cse1 .cse2 .cse3) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3))) [2023-12-16 05:44:52,479 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 05:44:52,481 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 05:44:52,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:44:52 BoogieIcfgContainer [2023-12-16 05:44:52,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 05:44:52,489 INFO L158 Benchmark]: Toolchain (without parser) took 10534.65ms. Allocated memory was 196.1MB in the beginning and 407.9MB in the end (delta: 211.8MB). Free memory was 130.1MB in the beginning and 257.8MB in the end (delta: -127.7MB). Peak memory consumption was 206.9MB. Max. memory is 8.0GB. [2023-12-16 05:44:52,490 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory is still 145.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 05:44:52,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.46ms. Allocated memory is still 196.1MB. Free memory was 129.8MB in the beginning and 109.8MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-16 05:44:52,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.04ms. Allocated memory is still 196.1MB. Free memory was 109.8MB in the beginning and 107.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 05:44:52,490 INFO L158 Benchmark]: Boogie Preprocessor took 40.70ms. Allocated memory is still 196.1MB. Free memory was 107.3MB in the beginning and 104.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 05:44:52,490 INFO L158 Benchmark]: RCFGBuilder took 467.54ms. Allocated memory was 196.1MB in the beginning and 283.1MB in the end (delta: 87.0MB). Free memory was 104.9MB in the beginning and 230.0MB in the end (delta: -125.0MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. [2023-12-16 05:44:52,490 INFO L158 Benchmark]: TraceAbstraction took 9629.64ms. Allocated memory was 283.1MB in the beginning and 407.9MB in the end (delta: 124.8MB). Free memory was 229.4MB in the beginning and 257.8MB in the end (delta: -28.3MB). Peak memory consumption was 218.1MB. Max. memory is 8.0GB. [2023-12-16 05:44:52,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory is still 145.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 348.46ms. Allocated memory is still 196.1MB. Free memory was 129.8MB in the beginning and 109.8MB in the end (delta: 20.0MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.04ms. Allocated memory is still 196.1MB. Free memory was 109.8MB in the beginning and 107.3MB in the end (delta: 2.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.70ms. Allocated memory is still 196.1MB. Free memory was 107.3MB in the beginning and 104.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 467.54ms. Allocated memory was 196.1MB in the beginning and 283.1MB in the end (delta: 87.0MB). Free memory was 104.9MB in the beginning and 230.0MB in the end (delta: -125.0MB). Peak memory consumption was 9.8MB. Max. memory is 8.0GB. * TraceAbstraction took 9629.64ms. Allocated memory was 283.1MB in the beginning and 407.9MB in the end (delta: 124.8MB). Free memory was 229.4MB in the beginning and 257.8MB in the end (delta: -28.3MB). Peak memory consumption was 218.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] - GenericResultAtLocation [Line: 299]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] - GenericResultAtLocation [Line: 340]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] - GenericResultAtLocation [Line: 557]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] - GenericResultAtLocation [Line: 622]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] - GenericResultAtLocation [Line: 988]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] * 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: 993]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.6s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1991 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1953 mSDsluCounter, 2520 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1734 mSDsCounter, 621 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3494 IncrementalHoareTripleChecker+Invalid, 4115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 621 mSolverCounterUnsat, 786 mSDtfsCounter, 3494 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 847 GetRequests, 699 SyntacticMatches, 9 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1204occurred in iteration=12, InterpolantAutomatonStates: 126, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 1022 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 1264 PreInvPairs, 1352 NumberOfFragments, 803 HoareAnnotationTreeSize, 1264 FormulaSimplifications, 1488 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 21 FormulaSimplificationsInter, 6304 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1025 NumberOfCodeBlocks, 1025 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1241 ConstructedInterpolants, 0 QuantifiedInterpolants, 2646 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1117 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 18 InterpolantComputations, 11 PerfectInterpolantSequences, 618/671 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: 567]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: ((((((((tmp == systemActive) && (pumpRunning == 0)) && (methAndRunningLastTime == 0)) && (2 == waterLevel)) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((((tmp == systemActive) && (methAndRunningLastTime == 0)) && (2 == waterLevel)) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || ((((((tmp == systemActive) && (pumpRunning == 0)) && (methAndRunningLastTime == 0)) && (waterLevel <= 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) RESULT: Ultimate proved your program to be correct! [2023-12-16 05:44:52,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...