/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:55:33,471 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:55:33,544 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:55:33,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:55:33,549 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:55:33,585 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:55:33,586 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:55:33,587 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:55:33,587 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:55:33,591 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:55:33,591 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:55:33,591 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:55:33,592 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:55:33,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:55:33,593 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:55:33,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:55:33,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:55:33,594 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:55:33,595 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:55:33,595 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:55:33,596 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:55:33,596 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:55:33,596 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:55:33,596 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:55:33,597 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:55:33,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:55:33,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:55:33,597 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:55:33,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:55:33,598 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:55:33,599 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:55:33,599 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:55:33,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:55:33,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:55:33,599 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:55:33,600 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:55:33,601 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:55:33,601 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:55:33,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:55:33,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:55:33,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:55:33,856 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:55:33,857 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:55:33,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2023-12-15 22:55:35,077 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:55:35,346 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:55:35,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product57.cil.c [2023-12-15 22:55:35,367 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4162f70f7/746a9370e22c49788296d315797087ac/FLAG8890fd5f5 [2023-12-15 22:55:35,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4162f70f7/746a9370e22c49788296d315797087ac [2023-12-15 22:55:35,384 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:55:35,386 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:55:35,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:55:35,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:55:35,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:55:35,394 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,395 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a599b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35, skipping insertion in model container [2023-12-15 22:55:35,395 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,438 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:55:35,660 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] [2023-12-15 22:55:35,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:55:35,675 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:55:35,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2023-12-15 22:55:35,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2023-12-15 22:55:35,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [198] [2023-12-15 22:55:35,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [299] [2023-12-15 22:55:35,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [340] [2023-12-15 22:55:35,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [557] [2023-12-15 22:55:35,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [622] [2023-12-15 22:55:35,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [988] [2023-12-15 22:55:35,762 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] [2023-12-15 22:55:35,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:55:35,790 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:55:35,791 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35 WrapperNode [2023-12-15 22:55:35,791 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:55:35,792 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:55:35,792 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:55:35,792 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:55:35,798 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,812 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,843 INFO L138 Inliner]: procedures = 57, calls = 101, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 223 [2023-12-15 22:55:35,844 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:55:35,845 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:55:35,845 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:55:35,845 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:55:35,854 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,855 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,870 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 22:55:35,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:55:35,886 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:55:35,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:55:35,887 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:55:35,887 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (1/1) ... [2023-12-15 22:55:35,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:55:35,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:35,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:55:35,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:55:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:55:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:55:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:55:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:55:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:55:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:55:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:55:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:55:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:55:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:55:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:55:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:55:35,946 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:55:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:55:35,947 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:55:35,948 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:55:35,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:55:35,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:55:36,046 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:55:36,049 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:55:36,385 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:55:36,458 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:55:36,458 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:55:36,458 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:55:36 BoogieIcfgContainer [2023-12-15 22:55:36,459 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:55:36,461 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:55:36,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:55:36,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:55:36,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:55:35" (1/3) ... [2023-12-15 22:55:36,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e90a9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:55:36, skipping insertion in model container [2023-12-15 22:55:36,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:55:35" (2/3) ... [2023-12-15 22:55:36,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e90a9cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:55:36, skipping insertion in model container [2023-12-15 22:55:36,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:55:36" (3/3) ... [2023-12-15 22:55:36,466 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product57.cil.c [2023-12-15 22:55:36,482 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:55:36,482 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:55:36,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:55:36,535 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;@320c8a18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:55:36,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:55:36,539 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) [2023-12-15 22:55:36,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:55:36,550 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:36,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:36,551 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:36,555 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash 756597807, now seen corresponding path program 1 times [2023-12-15 22:55:36,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:36,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350382339] [2023-12-15 22:55:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:36,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:36,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:55:36,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:36,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:36,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350382339] [2023-12-15 22:55:36,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350382339] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:36,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:36,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:55:36,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256300368] [2023-12-15 22:55:36,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:36,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:55:36,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:36,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:55:36,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:55:36,808 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) [2023-12-15 22:55:36,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:36,881 INFO L93 Difference]: Finished difference Result 142 states and 207 transitions. [2023-12-15 22:55:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:55:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-15 22:55:36,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:36,892 INFO L225 Difference]: With dead ends: 142 [2023-12-15 22:55:36,893 INFO L226 Difference]: Without dead ends: 67 [2023-12-15 22:55:36,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:55:36,901 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 [2023-12-15 22:55:36,902 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] [2023-12-15 22:55:36,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-12-15 22:55:36,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-12-15 22:55:36,940 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) [2023-12-15 22:55:36,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 92 transitions. [2023-12-15 22:55:36,943 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 92 transitions. Word has length 17 [2023-12-15 22:55:36,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:36,943 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 92 transitions. [2023-12-15 22:55:36,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:36,943 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 92 transitions. [2023-12-15 22:55:36,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-15 22:55:36,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:36,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:36,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:55:36,946 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:36,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:36,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2122968829, now seen corresponding path program 1 times [2023-12-15 22:55:36,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:36,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90481939] [2023-12-15 22:55:36,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:55:37,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:37,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:37,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90481939] [2023-12-15 22:55:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90481939] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:37,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:37,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:55:37,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331555189] [2023-12-15 22:55:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:37,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:37,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:37,074 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) [2023-12-15 22:55:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:37,110 INFO L93 Difference]: Finished difference Result 107 states and 147 transitions. [2023-12-15 22:55:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2023-12-15 22:55:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:37,112 INFO L225 Difference]: With dead ends: 107 [2023-12-15 22:55:37,112 INFO L226 Difference]: Without dead ends: 59 [2023-12-15 22:55:37,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:37,115 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 [2023-12-15 22:55:37,116 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] [2023-12-15 22:55:37,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-15 22:55:37,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-15 22:55:37,126 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) [2023-12-15 22:55:37,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2023-12-15 22:55:37,127 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 18 [2023-12-15 22:55:37,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:37,127 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2023-12-15 22:55:37,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:37,128 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2023-12-15 22:55:37,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-15 22:55:37,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:37,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:37,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:55:37,129 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:37,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:37,129 INFO L85 PathProgramCache]: Analyzing trace with hash 179426806, now seen corresponding path program 1 times [2023-12-15 22:55:37,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:37,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439269045] [2023-12-15 22:55:37,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:37,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:37,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:37,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:37,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439269045] [2023-12-15 22:55:37,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439269045] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:37,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:37,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 22:55:37,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134131075] [2023-12-15 22:55:37,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:37,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:55:37,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:37,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:55:37,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 22:55:37,239 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) [2023-12-15 22:55:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:37,357 INFO L93 Difference]: Finished difference Result 116 states and 161 transitions. [2023-12-15 22:55:37,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:55:37,358 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2023-12-15 22:55:37,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:37,359 INFO L225 Difference]: With dead ends: 116 [2023-12-15 22:55:37,360 INFO L226 Difference]: Without dead ends: 59 [2023-12-15 22:55:37,360 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 [2023-12-15 22:55:37,361 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 [2023-12-15 22:55:37,362 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] [2023-12-15 22:55:37,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2023-12-15 22:55:37,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2023-12-15 22:55:37,369 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) [2023-12-15 22:55:37,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2023-12-15 22:55:37,370 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 21 [2023-12-15 22:55:37,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:37,371 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2023-12-15 22:55:37,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:55:37,371 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2023-12-15 22:55:37,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-15 22:55:37,372 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:37,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:37,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:55:37,373 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:37,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:37,373 INFO L85 PathProgramCache]: Analyzing trace with hash 11069496, now seen corresponding path program 1 times [2023-12-15 22:55:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:37,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985447460] [2023-12-15 22:55:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:37,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:37,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:55:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:37,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:37,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985447460] [2023-12-15 22:55:37,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985447460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:37,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:37,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:55:37,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183908978] [2023-12-15 22:55:37,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:37,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:37,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:37,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:37,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:37,433 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) [2023-12-15 22:55:37,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:37,471 INFO L93 Difference]: Finished difference Result 156 states and 214 transitions. [2023-12-15 22:55:37,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:37,471 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 [2023-12-15 22:55:37,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:37,473 INFO L225 Difference]: With dead ends: 156 [2023-12-15 22:55:37,473 INFO L226 Difference]: Without dead ends: 99 [2023-12-15 22:55:37,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:55:37,475 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 [2023-12-15 22:55:37,475 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] [2023-12-15 22:55:37,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-12-15 22:55:37,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2023-12-15 22:55:37,488 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) [2023-12-15 22:55:37,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 129 transitions. [2023-12-15 22:55:37,489 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 129 transitions. Word has length 26 [2023-12-15 22:55:37,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:37,490 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 129 transitions. [2023-12-15 22:55:37,490 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) [2023-12-15 22:55:37,490 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 129 transitions. [2023-12-15 22:55:37,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-15 22:55:37,491 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:37,491 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] [2023-12-15 22:55:37,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:55:37,492 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:37,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:37,495 INFO L85 PathProgramCache]: Analyzing trace with hash -170334435, now seen corresponding path program 1 times [2023-12-15 22:55:37,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:37,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901705333] [2023-12-15 22:55:37,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:37,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:37,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:37,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:55:37,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:55:37,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:37,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901705333] [2023-12-15 22:55:37,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901705333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:37,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:37,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:55:37,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199489776] [2023-12-15 22:55:37,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:37,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:55:37,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:37,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:55:37,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:37,652 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) [2023-12-15 22:55:37,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:37,851 INFO L93 Difference]: Finished difference Result 216 states and 287 transitions. [2023-12-15 22:55:37,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:55:37,852 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 [2023-12-15 22:55:37,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:37,854 INFO L225 Difference]: With dead ends: 216 [2023-12-15 22:55:37,854 INFO L226 Difference]: Without dead ends: 121 [2023-12-15 22:55:37,855 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 [2023-12-15 22:55:37,856 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, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:37,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 186 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:55:37,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-15 22:55:37,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 115. [2023-12-15 22:55:37,868 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) [2023-12-15 22:55:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 151 transitions. [2023-12-15 22:55:37,870 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 151 transitions. Word has length 36 [2023-12-15 22:55:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:37,870 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 151 transitions. [2023-12-15 22:55:37,870 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) [2023-12-15 22:55:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 151 transitions. [2023-12-15 22:55:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-15 22:55:37,871 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:37,872 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] [2023-12-15 22:55:37,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:55:37,872 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:37,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:37,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1856002314, now seen corresponding path program 1 times [2023-12-15 22:55:37,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:37,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319966958] [2023-12-15 22:55:37,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:37,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:37,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:55:37,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:37,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:37,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319966958] [2023-12-15 22:55:37,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319966958] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:37,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:37,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:55:37,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795782821] [2023-12-15 22:55:37,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:37,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:55:37,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:37,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:55:37,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:37,972 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) [2023-12-15 22:55:38,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:38,086 INFO L93 Difference]: Finished difference Result 234 states and 315 transitions. [2023-12-15 22:55:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:55:38,087 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 [2023-12-15 22:55:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:38,089 INFO L225 Difference]: With dead ends: 234 [2023-12-15 22:55:38,089 INFO L226 Difference]: Without dead ends: 121 [2023-12-15 22:55:38,091 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 [2023-12-15 22:55:38,098 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 [2023-12-15 22:55:38,101 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] [2023-12-15 22:55:38,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-12-15 22:55:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2023-12-15 22:55:38,120 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) [2023-12-15 22:55:38,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 153 transitions. [2023-12-15 22:55:38,123 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 153 transitions. Word has length 39 [2023-12-15 22:55:38,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:38,124 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 153 transitions. [2023-12-15 22:55:38,124 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) [2023-12-15 22:55:38,124 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 153 transitions. [2023-12-15 22:55:38,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-15 22:55:38,126 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:38,126 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] [2023-12-15 22:55:38,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:55:38,127 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:38,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:38,127 INFO L85 PathProgramCache]: Analyzing trace with hash -2016263156, now seen corresponding path program 1 times [2023-12-15 22:55:38,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:38,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150252682] [2023-12-15 22:55:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:38,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:38,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:38,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:55:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:38,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:38,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150252682] [2023-12-15 22:55:38,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150252682] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:38,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:38,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:55:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913725659] [2023-12-15 22:55:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:38,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:55:38,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:38,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:55:38,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:38,243 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) [2023-12-15 22:55:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:38,362 INFO L93 Difference]: Finished difference Result 241 states and 323 transitions. [2023-12-15 22:55:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:55:38,362 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 [2023-12-15 22:55:38,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:38,367 INFO L225 Difference]: With dead ends: 241 [2023-12-15 22:55:38,367 INFO L226 Difference]: Without dead ends: 126 [2023-12-15 22:55:38,367 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 [2023-12-15 22:55:38,368 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 [2023-12-15 22:55:38,368 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] [2023-12-15 22:55:38,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2023-12-15 22:55:38,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 119. [2023-12-15 22:55:38,395 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) [2023-12-15 22:55:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 155 transitions. [2023-12-15 22:55:38,396 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 155 transitions. Word has length 39 [2023-12-15 22:55:38,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:38,396 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 155 transitions. [2023-12-15 22:55:38,396 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) [2023-12-15 22:55:38,396 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 155 transitions. [2023-12-15 22:55:38,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-15 22:55:38,397 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:38,397 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] [2023-12-15 22:55:38,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:55:38,398 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:38,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:38,398 INFO L85 PathProgramCache]: Analyzing trace with hash 473265806, now seen corresponding path program 1 times [2023-12-15 22:55:38,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:38,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923454073] [2023-12-15 22:55:38,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:38,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:38,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:55:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:38,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923454073] [2023-12-15 22:55:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923454073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:38,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:38,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:55:38,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859032371] [2023-12-15 22:55:38,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:38,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:55:38,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:38,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:55:38,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:55:38,491 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) [2023-12-15 22:55:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:38,702 INFO L93 Difference]: Finished difference Result 376 states and 525 transitions. [2023-12-15 22:55:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 22:55:38,703 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 [2023-12-15 22:55:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:38,705 INFO L225 Difference]: With dead ends: 376 [2023-12-15 22:55:38,705 INFO L226 Difference]: Without dead ends: 259 [2023-12-15 22:55:38,707 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 [2023-12-15 22:55:38,708 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:38,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 247 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:55:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-12-15 22:55:38,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 255. [2023-12-15 22:55:38,752 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) [2023-12-15 22:55:38,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 343 transitions. [2023-12-15 22:55:38,755 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 343 transitions. Word has length 39 [2023-12-15 22:55:38,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:38,755 INFO L495 AbstractCegarLoop]: Abstraction has 255 states and 343 transitions. [2023-12-15 22:55:38,755 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) [2023-12-15 22:55:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 343 transitions. [2023-12-15 22:55:38,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-15 22:55:38,762 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:38,762 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] [2023-12-15 22:55:38,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:55:38,762 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:38,762 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:38,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1550628312, now seen corresponding path program 1 times [2023-12-15 22:55:38,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:38,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451391899] [2023-12-15 22:55:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:38,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:55:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:55:38,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:38,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:38,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:38,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451391899] [2023-12-15 22:55:38,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451391899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:38,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:38,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:55:38,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391128074] [2023-12-15 22:55:38,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:38,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:55:38,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:38,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:55:38,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:55:38,946 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) [2023-12-15 22:55:39,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:39,449 INFO L93 Difference]: Finished difference Result 828 states and 1165 transitions. [2023-12-15 22:55:39,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-15 22:55:39,450 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 [2023-12-15 22:55:39,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:39,454 INFO L225 Difference]: With dead ends: 828 [2023-12-15 22:55:39,454 INFO L226 Difference]: Without dead ends: 575 [2023-12-15 22:55:39,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2023-12-15 22:55:39,458 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, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:39,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 314 Invalid, 528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 435 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 22:55:39,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-15 22:55:39,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 563. [2023-12-15 22:55:39,500 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) [2023-12-15 22:55:39,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 764 transitions. [2023-12-15 22:55:39,506 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 764 transitions. Word has length 43 [2023-12-15 22:55:39,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:39,507 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 764 transitions. [2023-12-15 22:55:39,508 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) [2023-12-15 22:55:39,508 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 764 transitions. [2023-12-15 22:55:39,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-15 22:55:39,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:39,511 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] [2023-12-15 22:55:39,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:55:39,511 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:39,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:39,512 INFO L85 PathProgramCache]: Analyzing trace with hash -625871405, now seen corresponding path program 1 times [2023-12-15 22:55:39,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:39,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504930408] [2023-12-15 22:55:39,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:39,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:39,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:55:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:55:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:55:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,644 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-15 22:55:39,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504930408] [2023-12-15 22:55:39,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504930408] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:39,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097414927] [2023-12-15 22:55:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:39,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:39,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:39,649 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:39,666 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:55:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:39,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 22:55:39,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:39,807 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:39,807 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:55:39,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097414927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:39,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:55:39,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2023-12-15 22:55:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940491664] [2023-12-15 22:55:39,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:39,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:55:39,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:39,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:55:39,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:55:39,809 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) [2023-12-15 22:55:39,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:39,916 INFO L93 Difference]: Finished difference Result 951 states and 1322 transitions. [2023-12-15 22:55:39,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:55:39,917 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 [2023-12-15 22:55:39,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:39,923 INFO L225 Difference]: With dead ends: 951 [2023-12-15 22:55:39,923 INFO L226 Difference]: Without dead ends: 949 [2023-12-15 22:55:39,923 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 [2023-12-15 22:55:39,924 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, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:39,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 131 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:55:39,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2023-12-15 22:55:39,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 845. [2023-12-15 22:55:40,001 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) [2023-12-15 22:55:40,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1199 transitions. [2023-12-15 22:55:40,007 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1199 transitions. Word has length 80 [2023-12-15 22:55:40,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:40,007 INFO L495 AbstractCegarLoop]: Abstraction has 845 states and 1199 transitions. [2023-12-15 22:55:40,008 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) [2023-12-15 22:55:40,008 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1199 transitions. [2023-12-15 22:55:40,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 22:55:40,013 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:40,013 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] [2023-12-15 22:55:40,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:40,221 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 [2023-12-15 22:55:40,221 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:40,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:40,222 INFO L85 PathProgramCache]: Analyzing trace with hash 735775505, now seen corresponding path program 1 times [2023-12-15 22:55:40,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:40,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143424199] [2023-12-15 22:55:40,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:40,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:40,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:55:40,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:40,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:55:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:55:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:55:40,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:55:40,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:55:40,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:55:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,583 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 44 proven. 11 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-15 22:55:40,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:40,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143424199] [2023-12-15 22:55:40,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143424199] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:40,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [789852483] [2023-12-15 22:55:40,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:40,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:40,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:40,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:40,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:55:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:40,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 22:55:40,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:40,811 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 65 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-15 22:55:40,811 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:55:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 48 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-15 22:55:41,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [789852483] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:55:41,111 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:55:41,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 9] total 17 [2023-12-15 22:55:41,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693121676] [2023-12-15 22:55:41,112 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:55:41,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-15 22:55:41,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:41,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-15 22:55:41,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:55:41,113 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) [2023-12-15 22:55:41,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:41,713 INFO L93 Difference]: Finished difference Result 1710 states and 2482 transitions. [2023-12-15 22:55:41,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-15 22:55:41,714 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 [2023-12-15 22:55:41,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:41,719 INFO L225 Difference]: With dead ends: 1710 [2023-12-15 22:55:41,719 INFO L226 Difference]: Without dead ends: 867 [2023-12-15 22:55:41,723 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 [2023-12-15 22:55:41,724 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 514 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:41,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 102 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 22:55:41,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2023-12-15 22:55:41,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 795. [2023-12-15 22:55:41,782 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) [2023-12-15 22:55:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1115 transitions. [2023-12-15 22:55:41,787 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1115 transitions. Word has length 119 [2023-12-15 22:55:41,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:41,788 INFO L495 AbstractCegarLoop]: Abstraction has 795 states and 1115 transitions. [2023-12-15 22:55:41,788 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) [2023-12-15 22:55:41,788 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1115 transitions. [2023-12-15 22:55:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 22:55:41,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:41,792 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] [2023-12-15 22:55:41,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:41,998 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 [2023-12-15 22:55:41,998 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:41,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:41,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1771611859, now seen corresponding path program 1 times [2023-12-15 22:55:41,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:41,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145676035] [2023-12-15 22:55:41,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:41,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:42,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:42,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:55:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:55:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:55:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:55:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-12-15 22:55:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:42,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 22:55:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 50 proven. 11 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-15 22:55:42,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:42,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145676035] [2023-12-15 22:55:42,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145676035] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:55:42,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128380127] [2023-12-15 22:55:42,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:42,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:55:42,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:55:42,277 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:55:42,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 22:55:42,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:42,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-15 22:55:42,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:55:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 70 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:55:42,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 22:55:42,680 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 51 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-15 22:55:42,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128380127] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 22:55:42,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-15 22:55:42,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 17 [2023-12-15 22:55:42,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657518274] [2023-12-15 22:55:42,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-15 22:55:42,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-15 22:55:42,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:42,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-15 22:55:42,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2023-12-15 22:55:42,683 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) [2023-12-15 22:55:43,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:43,985 INFO L93 Difference]: Finished difference Result 2808 states and 4959 transitions. [2023-12-15 22:55:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-12-15 22:55:43,986 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 [2023-12-15 22:55:43,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:44,003 INFO L225 Difference]: With dead ends: 2808 [2023-12-15 22:55:44,004 INFO L226 Difference]: Without dead ends: 2015 [2023-12-15 22:55:44,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 255 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722 [2023-12-15 22:55:44,011 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 434 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1446 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 1608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 1446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:44,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 644 Invalid, 1608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 1446 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 22:55:44,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2023-12-15 22:55:44,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 1204. [2023-12-15 22:55:44,149 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) [2023-12-15 22:55:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1204 states to 1204 states and 1684 transitions. [2023-12-15 22:55:44,157 INFO L78 Accepts]: Start accepts. Automaton has 1204 states and 1684 transitions. Word has length 115 [2023-12-15 22:55:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:44,157 INFO L495 AbstractCegarLoop]: Abstraction has 1204 states and 1684 transitions. [2023-12-15 22:55:44,157 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) [2023-12-15 22:55:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1204 states and 1684 transitions. [2023-12-15 22:55:44,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-12-15 22:55:44,163 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:55:44,163 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] [2023-12-15 22:55:44,169 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 22:55:44,369 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 [2023-12-15 22:55:44,369 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:55:44,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:55:44,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1113384559, now seen corresponding path program 1 times [2023-12-15 22:55:44,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:55:44,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417458792] [2023-12-15 22:55:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:55:44,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:55:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:55:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:55:44,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:55:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:55:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:55:44,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:55:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 22:55:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-15 22:55:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:55:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-12-15 22:55:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-15 22:55:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:55:44,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-12-15 22:55:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:55:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2023-12-15 22:55:44,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:55:44,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417458792] [2023-12-15 22:55:44,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417458792] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:55:44,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:55:44,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-15 22:55:44,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020846272] [2023-12-15 22:55:44,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:55:44,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-15 22:55:44,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:55:44,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-15 22:55:44,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-15 22:55:44,540 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) [2023-12-15 22:55:44,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:55:44,801 INFO L93 Difference]: Finished difference Result 1609 states and 2171 transitions. [2023-12-15 22:55:44,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-15 22:55:44,802 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 [2023-12-15 22:55:44,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:55:44,803 INFO L225 Difference]: With dead ends: 1609 [2023-12-15 22:55:44,803 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:55:44,807 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 [2023-12-15 22:55:44,808 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, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:55:44,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 79 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:55:44,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:55:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:55:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:55:44,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:55:44,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 119 [2023-12-15 22:55:44,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:55:44,810 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:55:44,810 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) [2023-12-15 22:55:44,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:55:44,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:55:44,812 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:55:44,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 22:55:44,814 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:55:46,682 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 370 376) no Hoare annotation was computed. [2023-12-15 22:55:46,682 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 370 376) the Hoare annotation is: true [2023-12-15 22:55:46,682 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 122 133) no Hoare annotation was computed. [2023-12-15 22:55:46,682 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))) [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 122 133) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L547-2(lines 547 551) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L993(line 993) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L102-2(lines 98 109) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 349 368) no Hoare annotation was computed. [2023-12-15 22:55:46,683 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)))) [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 420) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L317-1(line 317) no Hoare annotation was computed. [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 425) no Hoare annotation was computed. [2023-12-15 22:55:46,683 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))) [2023-12-15 22:55:46,683 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 333) no Hoare annotation was computed. [2023-12-15 22:55:46,684 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)|)))) [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 336) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L319-1(lines 311 339) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 346 369) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 993) no Hoare annotation was computed. [2023-12-15 22:55:46,684 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))))) [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L423-1(lines 404 428) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L357-1(lines 357 363) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 330) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 551) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 201 230) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 219) no Hoare annotation was computed. [2023-12-15 22:55:46,684 INFO L902 garLoopResultBuilder]: At program point L215-1(lines 215 219) the Hoare annotation is: true [2023-12-15 22:55:46,685 INFO L902 garLoopResultBuilder]: At program point L211-2(lines 211 225) the Hoare annotation is: true [2023-12-15 22:55:46,685 INFO L902 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: true [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point L207-1(line 207) no Hoare annotation was computed. [2023-12-15 22:55:46,685 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 201 230) the Hoare annotation is: true [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point L226(lines 201 230) no Hoare annotation was computed. [2023-12-15 22:55:46,685 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 134 142) the Hoare annotation is: true [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 134 142) no Hoare annotation was computed. [2023-12-15 22:55:46,685 INFO L895 garLoopResultBuilder]: At program point L614(lines 567 615) the Hoare annotation is: false [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point L569(lines 568 613) no Hoare annotation was computed. [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 609) no Hoare annotation was computed. [2023-12-15 22:55:46,685 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))) [2023-12-15 22:55:46,685 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))) [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 578 584) no Hoare annotation was computed. [2023-12-15 22:55:46,685 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 293) no Hoare annotation was computed. [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L286-2(lines 286 293) no Hoare annotation was computed. [2023-12-15 22:55:46,686 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))) [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L588(lines 588 594) no Hoare annotation was computed. [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L588-1(lines 588 594) no Hoare annotation was computed. [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L617(lines 558 621) no Hoare annotation was computed. [2023-12-15 22:55:46,686 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))) [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 399) no Hoare annotation was computed. [2023-12-15 22:55:46,686 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))) [2023-12-15 22:55:46,686 INFO L899 garLoopResultBuilder]: For program point L397-1(lines 378 402) no Hoare annotation was computed. [2023-12-15 22:55:46,686 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))) [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 175 188) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L445(lines 445 451) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 378 402) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L445-2(lines 438 454) no Hoare annotation was computed. [2023-12-15 22:55:46,687 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))) [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 185) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L468-1(line 468) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L528(lines 528 532) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L528-2(lines 528 532) no Hoare annotation was computed. [2023-12-15 22:55:46,687 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)))) [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L386(lines 386 394) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 110 121) no Hoare annotation was computed. [2023-12-15 22:55:46,687 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 110 121) no Hoare annotation was computed. [2023-12-15 22:55:46,688 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))) [2023-12-15 22:55:46,690 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:46,691 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:55:46,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:55:46 BoogieIcfgContainer [2023-12-15 22:55:46,706 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:55:46,707 INFO L158 Benchmark]: Toolchain (without parser) took 11321.49ms. Allocated memory was 254.8MB in the beginning and 371.2MB in the end (delta: 116.4MB). Free memory was 203.1MB in the beginning and 331.4MB in the end (delta: -128.3MB). Peak memory consumption was 199.2MB. Max. memory is 8.0GB. [2023-12-15 22:55:46,707 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 197.1MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:55:46,707 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.15ms. Allocated memory is still 254.8MB. Free memory was 202.9MB in the beginning and 182.7MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-15 22:55:46,708 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.42ms. Allocated memory is still 254.8MB. Free memory was 182.7MB in the beginning and 180.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:46,708 INFO L158 Benchmark]: Boogie Preprocessor took 40.92ms. Allocated memory is still 254.8MB. Free memory was 180.5MB in the beginning and 177.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:46,708 INFO L158 Benchmark]: RCFGBuilder took 572.45ms. Allocated memory is still 254.8MB. Free memory was 177.9MB in the beginning and 210.9MB in the end (delta: -32.9MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:46,709 INFO L158 Benchmark]: TraceAbstraction took 10245.39ms. Allocated memory was 254.8MB in the beginning and 371.2MB in the end (delta: 116.4MB). Free memory was 210.3MB in the beginning and 331.4MB in the end (delta: -121.0MB). Peak memory consumption was 205.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:46,711 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 197.1MB. Free memory is still 148.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 403.15ms. Allocated memory is still 254.8MB. Free memory was 202.9MB in the beginning and 182.7MB in the end (delta: 20.2MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 52.42ms. Allocated memory is still 254.8MB. Free memory was 182.7MB in the beginning and 180.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.92ms. Allocated memory is still 254.8MB. Free memory was 180.5MB in the beginning and 177.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 572.45ms. Allocated memory is still 254.8MB. Free memory was 177.9MB in the beginning and 210.9MB in the end (delta: -32.9MB). Peak memory consumption was 15.1MB. Max. memory is 8.0GB. * TraceAbstraction took 10245.39ms. Allocated memory was 254.8MB in the beginning and 371.2MB in the end (delta: 116.4MB). Free memory was 210.3MB in the beginning and 331.4MB in the end (delta: -121.0MB). Peak memory consumption was 205.1MB. 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: 10.2s, OverallIterations: 13, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1991 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1953 mSDsluCounter, 2520 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1734 mSDsCounter, 621 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3502 IncrementalHoareTripleChecker+Invalid, 4123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 621 mSolverCounterUnsat, 786 mSDtfsCounter, 3502 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 847 GetRequests, 699 SyntacticMatches, 9 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 743 ImplicationChecksByTransitivity, 0.9s 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, 0.3s HoareSimplificationTime, 21 FormulaSimplificationsInter, 6304 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s 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! [2023-12-15 22:55:46,738 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...