/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_spec5_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-19 23:40:37,760 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-19 23:40:37,845 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-19 23:40:37,857 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-19 23:40:37,858 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-19 23:40:37,893 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-19 23:40:37,893 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-19 23:40:37,894 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-19 23:40:37,895 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-19 23:40:37,898 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-19 23:40:37,898 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-19 23:40:37,899 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-19 23:40:37,900 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-19 23:40:37,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-19 23:40:37,901 INFO L153 SettingsManager]: * Use SBE=true [2023-12-19 23:40:37,901 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-19 23:40:37,901 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-19 23:40:37,902 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-19 23:40:37,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-19 23:40:37,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-19 23:40:37,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-19 23:40:37,903 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-19 23:40:37,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-19 23:40:37,903 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-19 23:40:37,903 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-19 23:40:37,903 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-19 23:40:37,904 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-19 23:40:37,904 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-19 23:40:37,904 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-19 23:40:37,905 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-19 23:40:37,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-19 23:40:37,906 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-19 23:40:37,906 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:40:37,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-19 23:40:37,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-19 23:40:37,906 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-19 23:40:37,907 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-19 23:40:37,908 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-19 23:40:38,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-19 23:40:38,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-19 23:40:38,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-19 23:40:38,168 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-19 23:40:38,169 INFO L274 PluginConnector]: CDTParser initialized [2023-12-19 23:40:38,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2023-12-19 23:40:39,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-19 23:40:39,497 INFO L384 CDTParser]: Found 1 translation units. [2023-12-19 23:40:39,498 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product50.cil.c [2023-12-19 23:40:39,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21df0545/b662a32b300a4943be7b1cb085cfca11/FLAGb682f1291 [2023-12-19 23:40:39,522 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f21df0545/b662a32b300a4943be7b1cb085cfca11 [2023-12-19 23:40:39,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-19 23:40:39,525 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-19 23:40:39,526 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-19 23:40:39,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-19 23:40:39,532 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-19 23:40:39,533 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:39,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69cdf6b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39, skipping insertion in model container [2023-12-19 23:40:39,534 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:39,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-19 23:40:39,701 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_spec5_product50.cil.c[1605,1618] [2023-12-19 23:40:39,867 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:40:39,877 INFO L202 MainTranslator]: Completed pre-run [2023-12-19 23:40:39,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2023-12-19 23:40:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2023-12-19 23:40:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [279] [2023-12-19 23:40:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [349] [2023-12-19 23:40:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [453] [2023-12-19 23:40:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [819] [2023-12-19 23:40:39,887 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [868] [2023-12-19 23:40:39,888 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [906] [2023-12-19 23:40:39,891 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_spec5_product50.cil.c[1605,1618] [2023-12-19 23:40:39,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-19 23:40:39,951 INFO L206 MainTranslator]: Completed translation [2023-12-19 23:40:39,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39 WrapperNode [2023-12-19 23:40:39,952 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-19 23:40:39,953 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-19 23:40:39,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-19 23:40:39,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-19 23:40:39,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:39,973 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:39,996 INFO L138 Inliner]: procedures = 58, calls = 102, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 212 [2023-12-19 23:40:39,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-19 23:40:39,997 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-19 23:40:39,997 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-19 23:40:39,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-19 23:40:40,011 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,014 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,027 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-19 23:40:40,027 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,037 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,038 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,041 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-19 23:40:40,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-19 23:40:40,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-19 23:40:40,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-19 23:40:40,042 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (1/1) ... [2023-12-19 23:40:40,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-19 23:40:40,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:40,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-19 23:40:40,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-19 23:40:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-19 23:40:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-19 23:40:40,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-19 23:40:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-19 23:40:40,108 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-19 23:40:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-19 23:40:40,108 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-19 23:40:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:40:40,108 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-19 23:40:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-19 23:40:40,108 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-19 23:40:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2023-12-19 23:40:40,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2023-12-19 23:40:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-19 23:40:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-19 23:40:40,109 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-19 23:40:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-19 23:40:40,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-19 23:40:40,167 INFO L241 CfgBuilder]: Building ICFG [2023-12-19 23:40:40,169 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-19 23:40:40,381 INFO L282 CfgBuilder]: Performing block encoding [2023-12-19 23:40:40,457 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-19 23:40:40,461 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-19 23:40:40,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:40:40 BoogieIcfgContainer [2023-12-19 23:40:40,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-19 23:40:40,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-19 23:40:40,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-19 23:40:40,467 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-19 23:40:40,467 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 11:40:39" (1/3) ... [2023-12-19 23:40:40,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ea40d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:40:40, skipping insertion in model container [2023-12-19 23:40:40,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 11:40:39" (2/3) ... [2023-12-19 23:40:40,468 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47ea40d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 11:40:40, skipping insertion in model container [2023-12-19 23:40:40,468 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 11:40:40" (3/3) ... [2023-12-19 23:40:40,469 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2023-12-19 23:40:40,482 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-19 23:40:40,483 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-19 23:40:40,520 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-19 23:40:40,525 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;@6266ed91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-19 23:40:40,525 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-19 23:40:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 50 states have (on average 1.54) internal successors, (77), 58 states have internal predecessors, (77), 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) [2023-12-19 23:40:40,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-19 23:40:40,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:40,537 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] [2023-12-19 23:40:40,537 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:40,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:40,544 INFO L85 PathProgramCache]: Analyzing trace with hash 2052317173, now seen corresponding path program 1 times [2023-12-19 23:40:40,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:40,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230316969] [2023-12-19 23:40:40,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:40,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:40,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:40:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:40,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:40,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:40,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230316969] [2023-12-19 23:40:40,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230316969] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:40,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:40,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-19 23:40:40,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886335082] [2023-12-19 23:40:40,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:40,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-19 23:40:40,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:40,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-19 23:40:40,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:40:40,776 INFO L87 Difference]: Start difference. First operand has 71 states, 50 states have (on average 1.54) internal successors, (77), 58 states have internal predecessors, (77), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:40,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:40,855 INFO L93 Difference]: Finished difference Result 140 states and 203 transitions. [2023-12-19 23:40:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-19 23:40:40,859 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2023-12-19 23:40:40,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:40,867 INFO L225 Difference]: With dead ends: 140 [2023-12-19 23:40:40,867 INFO L226 Difference]: Without dead ends: 66 [2023-12-19 23:40:40,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-19 23:40:40,873 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:40,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:40,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-19 23:40:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-19 23:40:40,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.425531914893617) internal successors, (67), 54 states have internal predecessors, (67), 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) [2023-12-19 23:40:40,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-12-19 23:40:40,911 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 22 [2023-12-19 23:40:40,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:40,911 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-12-19 23:40:40,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-12-19 23:40:40,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-19 23:40:40,915 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:40,915 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] [2023-12-19 23:40:40,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-19 23:40:40,916 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:40,917 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash 449360776, now seen corresponding path program 1 times [2023-12-19 23:40:40,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:40,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191117283] [2023-12-19 23:40:40,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:40,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-12-19 23:40:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,039 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:41,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:41,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191117283] [2023-12-19 23:40:41,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191117283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:41,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:41,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:40:41,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538266006] [2023-12-19 23:40:41,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:41,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:40:41,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:41,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:40:41,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:41,042 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:41,100 INFO L93 Difference]: Finished difference Result 105 states and 143 transitions. [2023-12-19 23:40:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:40:41,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-12-19 23:40:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:41,102 INFO L225 Difference]: With dead ends: 105 [2023-12-19 23:40:41,102 INFO L226 Difference]: Without dead ends: 58 [2023-12-19 23:40:41,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:41,104 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:41,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 119 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:41,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-19 23:40:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-19 23:40:41,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 49 states have internal predecessors, (61), 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) [2023-12-19 23:40:41,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-12-19 23:40:41,113 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 23 [2023-12-19 23:40:41,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:41,113 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-12-19 23:40:41,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-19 23:40:41,113 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-12-19 23:40:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-19 23:40:41,114 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:41,114 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] [2023-12-19 23:40:41,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-19 23:40:41,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:41,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1288234241, now seen corresponding path program 1 times [2023-12-19 23:40:41,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:41,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263439169] [2023-12-19 23:40:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:41,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-19 23:40:41,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:41,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:41,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263439169] [2023-12-19 23:40:41,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263439169] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:41,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:41,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-19 23:40:41,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250675132] [2023-12-19 23:40:41,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:41,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-19 23:40:41,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:41,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-19 23:40:41,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-19 23:40:41,276 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:41,362 INFO L93 Difference]: Finished difference Result 114 states and 157 transitions. [2023-12-19 23:40:41,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-19 23:40:41,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-12-19 23:40:41,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:41,365 INFO L225 Difference]: With dead ends: 114 [2023-12-19 23:40:41,365 INFO L226 Difference]: Without dead ends: 58 [2023-12-19 23:40:41,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:41,367 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 82 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:41,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 112 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:41,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-19 23:40:41,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-19 23:40:41,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 49 states have internal predecessors, (60), 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) [2023-12-19 23:40:41,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2023-12-19 23:40:41,375 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 26 [2023-12-19 23:40:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:41,379 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2023-12-19 23:40:41,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2023-12-19 23:40:41,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-19 23:40:41,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:41,384 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] [2023-12-19 23:40:41,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-19 23:40:41,385 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:41,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:41,385 INFO L85 PathProgramCache]: Analyzing trace with hash 283298297, now seen corresponding path program 1 times [2023-12-19 23:40:41,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:41,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592906518] [2023-12-19 23:40:41,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:41,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-12-19 23:40:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:41,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:41,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592906518] [2023-12-19 23:40:41,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592906518] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:41,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:41,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-19 23:40:41,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082472169] [2023-12-19 23:40:41,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:41,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-19 23:40:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:41,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-19 23:40:41,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:41,429 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:41,468 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2023-12-19 23:40:41,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-19 23:40:41,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 31 [2023-12-19 23:40:41,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:41,470 INFO L225 Difference]: With dead ends: 156 [2023-12-19 23:40:41,470 INFO L226 Difference]: Without dead ends: 100 [2023-12-19 23:40:41,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-19 23:40:41,472 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 61 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:41,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 128 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-19 23:40:41,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-12-19 23:40:41,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 98. [2023-12-19 23:40:41,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 71 states have (on average 1.380281690140845) internal successors, (98), 78 states have internal predecessors, (98), 14 states have call successors, (14), 12 states have call predecessors, (14), 12 states have return successors, (18), 14 states have call predecessors, (18), 14 states have call successors, (18) [2023-12-19 23:40:41,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2023-12-19 23:40:41,486 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 31 [2023-12-19 23:40:41,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:41,486 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2023-12-19 23:40:41,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-19 23:40:41,487 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2023-12-19 23:40:41,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:40:41,488 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:41,488 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:41,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-19 23:40:41,488 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:41,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:41,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1469249665, now seen corresponding path program 1 times [2023-12-19 23:40:41,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:41,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048891146] [2023-12-19 23:40:41,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:41,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:41,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:41,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:40:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,609 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:41,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:41,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048891146] [2023-12-19 23:40:41,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048891146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:41,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:41,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:41,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532223611] [2023-12-19 23:40:41,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:41,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:41,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:41,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:41,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:41,611 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:41,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:41,743 INFO L93 Difference]: Finished difference Result 218 states and 294 transitions. [2023-12-19 23:40:41,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:40:41,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:40:41,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:41,747 INFO L225 Difference]: With dead ends: 218 [2023-12-19 23:40:41,748 INFO L226 Difference]: Without dead ends: 122 [2023-12-19 23:40:41,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:41,755 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 49 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:41,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 192 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:41,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2023-12-19 23:40:41,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2023-12-19 23:40:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 88 states have (on average 1.375) internal successors, (121), 95 states have internal predecessors, (121), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-12-19 23:40:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2023-12-19 23:40:41,789 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 38 [2023-12-19 23:40:41,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:41,790 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2023-12-19 23:40:41,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:41,790 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2023-12-19 23:40:41,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:40:41,791 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:41,791 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:41,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-19 23:40:41,791 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:41,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:41,792 INFO L85 PathProgramCache]: Analyzing trace with hash 189385987, now seen corresponding path program 1 times [2023-12-19 23:40:41,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:41,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440184600] [2023-12-19 23:40:41,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:41,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:41,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:40:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:41,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:41,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:41,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440184600] [2023-12-19 23:40:41,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440184600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:41,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:41,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:41,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610798629] [2023-12-19 23:40:41,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:41,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:41,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:41,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:41,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:41,901 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:42,032 INFO L93 Difference]: Finished difference Result 247 states and 337 transitions. [2023-12-19 23:40:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-19 23:40:42,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:40:42,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:42,035 INFO L225 Difference]: With dead ends: 247 [2023-12-19 23:40:42,035 INFO L226 Difference]: Without dead ends: 129 [2023-12-19 23:40:42,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:42,037 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 54 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:42,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 192 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-19 23:40:42,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-19 23:40:42,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 122. [2023-12-19 23:40:42,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 90 states have (on average 1.3666666666666667) internal successors, (123), 97 states have internal predecessors, (123), 16 states have call successors, (16), 12 states have call predecessors, (16), 15 states have return successors, (23), 17 states have call predecessors, (23), 16 states have call successors, (23) [2023-12-19 23:40:42,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 162 transitions. [2023-12-19 23:40:42,050 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 162 transitions. Word has length 38 [2023-12-19 23:40:42,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:42,051 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 162 transitions. [2023-12-19 23:40:42,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:42,051 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 162 transitions. [2023-12-19 23:40:42,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-19 23:40:42,052 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:42,052 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:42,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-19 23:40:42,052 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:42,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:42,053 INFO L85 PathProgramCache]: Analyzing trace with hash -1398961915, now seen corresponding path program 1 times [2023-12-19 23:40:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:42,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961655113] [2023-12-19 23:40:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:42,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:42,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-19 23:40:42,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,127 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:42,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:42,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961655113] [2023-12-19 23:40:42,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961655113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:42,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:42,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-19 23:40:42,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747660699] [2023-12-19 23:40:42,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:42,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-19 23:40:42,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:42,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-19 23:40:42,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-19 23:40:42,129 INFO L87 Difference]: Start difference. First operand 122 states and 162 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:42,330 INFO L93 Difference]: Finished difference Result 364 states and 497 transitions. [2023-12-19 23:40:42,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-19 23:40:42,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-19 23:40:42,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:42,335 INFO L225 Difference]: With dead ends: 364 [2023-12-19 23:40:42,335 INFO L226 Difference]: Without dead ends: 244 [2023-12-19 23:40:42,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:42,338 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 187 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:42,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 202 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:40:42,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-12-19 23:40:42,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 236. [2023-12-19 23:40:42,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 172 states have (on average 1.319767441860465) internal successors, (227), 183 states have internal predecessors, (227), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2023-12-19 23:40:42,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 314 transitions. [2023-12-19 23:40:42,379 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 314 transitions. Word has length 38 [2023-12-19 23:40:42,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:42,379 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 314 transitions. [2023-12-19 23:40:42,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-19 23:40:42,380 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 314 transitions. [2023-12-19 23:40:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-19 23:40:42,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:42,384 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] [2023-12-19 23:40:42,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-19 23:40:42,384 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:42,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:42,385 INFO L85 PathProgramCache]: Analyzing trace with hash -175084680, now seen corresponding path program 1 times [2023-12-19 23:40:42,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:42,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696433549] [2023-12-19 23:40:42,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:42,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-19 23:40:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-19 23:40:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-19 23:40:42,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-12-19 23:40:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-19 23:40:42,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:42,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696433549] [2023-12-19 23:40:42,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696433549] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:42,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:42,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-19 23:40:42,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173471934] [2023-12-19 23:40:42,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:42,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-19 23:40:42,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:42,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-19 23:40:42,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-19 23:40:42,513 INFO L87 Difference]: Start difference. First operand 236 states and 314 transitions. Second operand has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:40:42,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:42,789 INFO L93 Difference]: Finished difference Result 474 states and 635 transitions. [2023-12-19 23:40:42,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-12-19 23:40:42,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2023-12-19 23:40:42,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:42,792 INFO L225 Difference]: With dead ends: 474 [2023-12-19 23:40:42,792 INFO L226 Difference]: Without dead ends: 240 [2023-12-19 23:40:42,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2023-12-19 23:40:42,794 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 105 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:42,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 247 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-19 23:40:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-12-19 23:40:42,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2023-12-19 23:40:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 168 states have (on average 1.2797619047619047) internal successors, (215), 179 states have internal predecessors, (215), 34 states have call successors, (34), 28 states have call predecessors, (34), 29 states have return successors, (53), 34 states have call predecessors, (53), 34 states have call successors, (53) [2023-12-19 23:40:42,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 302 transitions. [2023-12-19 23:40:42,819 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 302 transitions. Word has length 41 [2023-12-19 23:40:42,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:42,820 INFO L495 AbstractCegarLoop]: Abstraction has 232 states and 302 transitions. [2023-12-19 23:40:42,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-19 23:40:42,821 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 302 transitions. [2023-12-19 23:40:42,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-19 23:40:42,822 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:42,822 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:42,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-19 23:40:42,823 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:42,823 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:42,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1716994453, now seen corresponding path program 1 times [2023-12-19 23:40:42,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:42,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239315514] [2023-12-19 23:40:42,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:42,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:42,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-12-19 23:40:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-19 23:40:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-19 23:40:43,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-19 23:40:43,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:43,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239315514] [2023-12-19 23:40:43,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239315514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-19 23:40:43,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-19 23:40:43,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-19 23:40:43,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5826399] [2023-12-19 23:40:43,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-19 23:40:43,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-19 23:40:43,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:43,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-19 23:40:43,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-19 23:40:43,020 INFO L87 Difference]: Start difference. First operand 232 states and 302 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:40:43,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:43,472 INFO L93 Difference]: Finished difference Result 718 states and 973 transitions. [2023-12-19 23:40:43,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 23:40:43,473 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 42 [2023-12-19 23:40:43,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:43,476 INFO L225 Difference]: With dead ends: 718 [2023-12-19 23:40:43,476 INFO L226 Difference]: Without dead ends: 532 [2023-12-19 23:40:43,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2023-12-19 23:40:43,479 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 344 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:43,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 296 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-19 23:40:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-12-19 23:40:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 449. [2023-12-19 23:40:43,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 326 states have (on average 1.2791411042944785) internal successors, (417), 350 states have internal predecessors, (417), 65 states have call successors, (65), 49 states have call predecessors, (65), 57 states have return successors, (104), 67 states have call predecessors, (104), 65 states have call successors, (104) [2023-12-19 23:40:43,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 586 transitions. [2023-12-19 23:40:43,522 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 586 transitions. Word has length 42 [2023-12-19 23:40:43,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:43,522 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 586 transitions. [2023-12-19 23:40:43,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 6 states have internal predecessors, (32), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-19 23:40:43,523 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 586 transitions. [2023-12-19 23:40:43,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-19 23:40:43,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:43,525 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:43,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-19 23:40:43,526 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:43,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:43,526 INFO L85 PathProgramCache]: Analyzing trace with hash -12859544, now seen corresponding path program 1 times [2023-12-19 23:40:43,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:43,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283661052] [2023-12-19 23:40:43,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:43,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:43,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:43,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-12-19 23:40:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-19 23:40:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-19 23:40:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,662 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-19 23:40:43,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:43,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283661052] [2023-12-19 23:40:43,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283661052] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:43,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353458165] [2023-12-19 23:40:43,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:43,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:43,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:43,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:43,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-19 23:40:43,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:43,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-19 23:40:43,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:43,933 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-19 23:40:43,933 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:44,122 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-19 23:40:44,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353458165] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:44,125 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:44,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 12 [2023-12-19 23:40:44,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448176446] [2023-12-19 23:40:44,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:44,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-19 23:40:44,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:44,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-19 23:40:44,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-12-19 23:40:44,128 INFO L87 Difference]: Start difference. First operand 449 states and 586 transitions. Second operand has 12 states, 10 states have (on average 8.5) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-19 23:40:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:45,018 INFO L93 Difference]: Finished difference Result 964 states and 1292 transitions. [2023-12-19 23:40:45,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-12-19 23:40:45,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.5) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 76 [2023-12-19 23:40:45,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:45,021 INFO L225 Difference]: With dead ends: 964 [2023-12-19 23:40:45,022 INFO L226 Difference]: Without dead ends: 559 [2023-12-19 23:40:45,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 167 SyntacticMatches, 4 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=255, Invalid=1005, Unknown=0, NotChecked=0, Total=1260 [2023-12-19 23:40:45,024 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 212 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:45,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 828 Invalid, 949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-19 23:40:45,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-12-19 23:40:45,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 504. [2023-12-19 23:40:45,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 363 states have (on average 1.258953168044077) internal successors, (457), 393 states have internal predecessors, (457), 74 states have call successors, (74), 62 states have call predecessors, (74), 66 states have return successors, (95), 69 states have call predecessors, (95), 74 states have call successors, (95) [2023-12-19 23:40:45,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 626 transitions. [2023-12-19 23:40:45,071 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 626 transitions. Word has length 76 [2023-12-19 23:40:45,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:45,073 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 626 transitions. [2023-12-19 23:40:45,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.5) internal successors, (85), 8 states have internal predecessors, (85), 4 states have call successors, (18), 6 states have call predecessors, (18), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2023-12-19 23:40:45,074 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 626 transitions. [2023-12-19 23:40:45,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-12-19 23:40:45,078 INFO L187 NwaCegarLoop]: Found error trace [2023-12-19 23:40:45,078 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2023-12-19 23:40:45,091 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:45,284 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 [2023-12-19 23:40:45,285 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-19 23:40:45,285 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-19 23:40:45,285 INFO L85 PathProgramCache]: Analyzing trace with hash 854554517, now seen corresponding path program 1 times [2023-12-19 23:40:45,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-19 23:40:45,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621372148] [2023-12-19 23:40:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:45,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-19 23:40:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-19 23:40:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:45,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-19 23:40:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-19 23:40:45,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:45,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-19 23:40:45,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-19 23:40:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-12-19 23:40:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-12-19 23:40:45,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-19 23:40:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-12-19 23:40:45,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-12-19 23:40:45,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,599 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 75 proven. 21 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-19 23:40:45,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-19 23:40:45,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621372148] [2023-12-19 23:40:45,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621372148] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-19 23:40:45,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [917193299] [2023-12-19 23:40:45,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-19 23:40:45,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-19 23:40:45,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-19 23:40:45,601 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-19 23:40:45,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-19 23:40:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-19 23:40:45,718 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-19 23:40:45,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-19 23:40:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-19 23:40:45,884 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-19 23:40:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 66 proven. 31 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-12-19 23:40:46,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [917193299] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-19 23:40:46,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-19 23:40:46,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 21 [2023-12-19 23:40:46,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405679368] [2023-12-19 23:40:46,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-19 23:40:46,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-12-19 23:40:46,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-19 23:40:46,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-12-19 23:40:46,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2023-12-19 23:40:46,215 INFO L87 Difference]: Start difference. First operand 504 states and 626 transitions. Second operand has 21 states, 21 states have (on average 7.190476190476191) internal successors, (151), 18 states have internal predecessors, (151), 10 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) [2023-12-19 23:40:46,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-19 23:40:46,782 INFO L93 Difference]: Finished difference Result 1060 states and 1361 transitions. [2023-12-19 23:40:46,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-19 23:40:46,782 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.190476190476191) internal successors, (151), 18 states have internal predecessors, (151), 10 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) Word has length 133 [2023-12-19 23:40:46,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-19 23:40:46,783 INFO L225 Difference]: With dead ends: 1060 [2023-12-19 23:40:46,783 INFO L226 Difference]: Without dead ends: 0 [2023-12-19 23:40:46,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 284 SyntacticMatches, 4 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2023-12-19 23:40:46,787 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 388 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-19 23:40:46,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 325 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-19 23:40:46,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-19 23:40:46,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-19 23:40:46,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-19 23:40:46,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-19 23:40:46,788 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 133 [2023-12-19 23:40:46,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-19 23:40:46,788 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-19 23:40:46,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.190476190476191) internal successors, (151), 18 states have internal predecessors, (151), 10 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (27), 9 states have call predecessors, (27), 10 states have call successors, (27) [2023-12-19 23:40:46,789 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-19 23:40:46,789 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-19 23:40:46,792 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-19 23:40:46,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-19 23:40:46,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-19 23:40:47,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-19 23:40:49,009 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 102 108) no Hoare annotation was computed. [2023-12-19 23:40:49,009 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 102 108) the Hoare annotation is: true [2023-12-19 23:40:49,009 INFO L899 garLoopResultBuilder]: For program point L381-1(lines 377 388) no Hoare annotation was computed. [2023-12-19 23:40:49,009 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 377 388) the Hoare annotation is: true [2023-12-19 23:40:49,009 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 377 388) no Hoare annotation was computed. [2023-12-19 23:40:49,009 INFO L899 garLoopResultBuilder]: For program point L929(line 929) no Hoare annotation was computed. [2023-12-19 23:40:49,009 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 908 937) no Hoare annotation was computed. [2023-12-19 23:40:49,010 INFO L899 garLoopResultBuilder]: For program point L922(lines 922 926) no Hoare annotation was computed. [2023-12-19 23:40:49,010 INFO L902 garLoopResultBuilder]: At program point L922-1(lines 922 926) the Hoare annotation is: true [2023-12-19 23:40:49,010 INFO L902 garLoopResultBuilder]: At program point L918-2(lines 918 932) the Hoare annotation is: true [2023-12-19 23:40:49,010 INFO L902 garLoopResultBuilder]: At program point L914(line 914) the Hoare annotation is: true [2023-12-19 23:40:49,010 INFO L899 garLoopResultBuilder]: For program point L914-1(line 914) no Hoare annotation was computed. [2023-12-19 23:40:49,010 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 908 937) the Hoare annotation is: true [2023-12-19 23:40:49,010 INFO L899 garLoopResultBuilder]: For program point L933(lines 908 937) no Hoare annotation was computed. [2023-12-19 23:40:49,011 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse1 (< |old(~pumpRunning~0)| 1)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 (< 2 |old(~waterLevel~0)|)) (or (not (= |old(~waterLevel~0)| 2)) .cse1 .cse0) (or (< 1 |old(~waterLevel~0)|) (< |old(~switchedOnBeforeTS~0)| 1) .cse1 .cse0))) [2023-12-19 23:40:49,011 INFO L899 garLoopResultBuilder]: For program point L155-1(lines 136 160) no Hoare annotation was computed. [2023-12-19 23:40:49,011 INFO L899 garLoopResultBuilder]: For program point L89-1(lines 89 95) no Hoare annotation was computed. [2023-12-19 23:40:49,011 INFO L895 garLoopResultBuilder]: At program point L849(line 849) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= ~pumpRunning~0 0)) (.cse13 (<= ~waterLevel~0 1)) (.cse14 (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|)) (.cse7 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| ~waterLevel~0)) (.cse2 (<= 1 ~switchedOnBeforeTS~0))) (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse10 (and .cse6 .cse13 .cse14 .cse7 .cse2)) (.cse11 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse12 (and .cse0 .cse13 .cse14 .cse7 .cse2)) (.cse4 (< |old(~pumpRunning~0)| 1)) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (= 0 ~systemActive~0)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (let ((.cse1 (= ~waterLevel~0 1))) (or (and .cse0 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~8#1| 1) .cse1 .cse2) .cse3 .cse4 .cse5 (and .cse6 .cse7 .cse1 .cse2))) (or .cse8 .cse3 .cse5) (or (and .cse0 .cse7 .cse9 .cse2) .cse10 .cse11 .cse12 .cse4 .cse5 (< 2 |old(~waterLevel~0)|) (and .cse6 .cse7 .cse9 .cse2)) (or (not (= |old(~waterLevel~0)| 1)) .cse10 .cse11 .cse12 .cse4 .cse5) (or (< 1 |old(~waterLevel~0)|) .cse8 .cse5 (and .cse6 .cse7 .cse9))))) [2023-12-19 23:40:49,011 INFO L899 garLoopResultBuilder]: For program point L849-1(line 849) no Hoare annotation was computed. [2023-12-19 23:40:49,011 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 88) no Hoare annotation was computed. [2023-12-19 23:40:49,011 INFO L899 garLoopResultBuilder]: For program point L82-2(lines 78 100) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 152) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 157) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L895 garLoopResultBuilder]: At program point L834(line 834) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= 2 ~waterLevel~0)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or (< 1 |old(~waterLevel~0)|) (and .cse1 .cse3 .cse6) .cse0 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse7 .cse5 (and .cse8 .cse3 .cse6) (< 2 |old(~waterLevel~0)|)) (or (and .cse8 .cse2 .cse3) .cse4 .cse7 .cse5))) [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L834-1(line 834) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 861) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L847(lines 847 864) no Hoare annotation was computed. [2023-12-19 23:40:49,012 INFO L899 garLoopResultBuilder]: For program point L847-1(lines 839 867) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 75 101) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse2 (= 2 ~waterLevel~0)) (.cse3 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse7 (< |old(~pumpRunning~0)| 1)) (.cse5 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 .cse2 .cse3) .cse4 .cse5) (or (< 1 |old(~waterLevel~0)|) (and .cse1 .cse3 .cse6) .cse0 .cse5) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse7 .cse5 (and .cse8 .cse3 .cse6) (< 2 |old(~waterLevel~0)|)) (or (and .cse8 .cse2 .cse3) .cse4 .cse7 .cse5))) [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 265) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point L261-2(lines 261 265) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L895 garLoopResultBuilder]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (<= 1 ~switchedOnBeforeTS~0))) (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse5 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse7 (and .cse0 (<= ~waterLevel~0 1) (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse1)) (.cse3 (< |old(~pumpRunning~0)| 1)) (.cse4 (= 0 ~systemActive~0))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 .cse3 .cse4) (or .cse5 .cse2 .cse4) (or (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) .cse6 .cse7 .cse3 .cse4 (< 2 |old(~waterLevel~0)|)) (or (< 1 |old(~waterLevel~0)|) .cse5 .cse4) (or (not (= |old(~waterLevel~0)| 1)) .cse6 .cse7 .cse3 .cse4)))) [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point L852(lines 852 858) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 75 101) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point L357(lines 357 361) no Hoare annotation was computed. [2023-12-19 23:40:49,013 INFO L899 garLoopResultBuilder]: For program point L357-2(lines 353 364) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L895 garLoopResultBuilder]: At program point L341(lines 292 342) the Hoare annotation is: false [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point L990(lines 990 997) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point L990-2(lines 990 997) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point L313(lines 313 319) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point L313-1(lines 313 319) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L895 garLoopResultBuilder]: At program point L338(lines 293 340) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse6 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-12-19 23:40:49,014 INFO L895 garLoopResultBuilder]: At program point L305(line 305) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse6 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point L331(lines 331 335) no Hoare annotation was computed. [2023-12-19 23:40:49,014 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-19 23:40:49,015 INFO L895 garLoopResultBuilder]: At program point L331-2(lines 323 336) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse6 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-12-19 23:40:49,015 INFO L899 garLoopResultBuilder]: For program point L294(lines 293 340) no Hoare annotation was computed. [2023-12-19 23:40:49,015 INFO L899 garLoopResultBuilder]: For program point L323(lines 323 336) no Hoare annotation was computed. [2023-12-19 23:40:49,015 INFO L895 garLoopResultBuilder]: At program point L315(line 315) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse5 (<= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 0)) (.cse1 (= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_main_~tmp~9#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0) .cse4) (and .cse6 .cse5 .cse2 .cse3 .cse4) (and .cse6 .cse1 .cse2 .cse3 .cse4))) [2023-12-19 23:40:49,015 INFO L899 garLoopResultBuilder]: For program point L344(lines 283 348) no Hoare annotation was computed. [2023-12-19 23:40:49,015 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 309) no Hoare annotation was computed. [2023-12-19 23:40:49,015 INFO L899 garLoopResultBuilder]: For program point L303-1(lines 303 309) no Hoare annotation was computed. [2023-12-19 23:40:49,015 INFO L895 garLoopResultBuilder]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (< 2 ~waterLevel~0) (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) .cse0) (or (< 1 ~waterLevel~0) (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse0))) [2023-12-19 23:40:49,015 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 126) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point L114(lines 114 131) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point L434(lines 434 440) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 246) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point L242-2(lines 242 246) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 110 134) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (< 1 ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 430 443) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L895 garLoopResultBuilder]: At program point L129(line 129) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (< 1 ~waterLevel~0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 2 ~waterLevel~0)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (< ~switchedOnBeforeTS~0 1) (< |old(~pumpRunning~0)| 1) .cse2))) [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 110 134) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 110 134) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point L369-1(lines 365 376) no Hoare annotation was computed. [2023-12-19 23:40:49,016 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 365 376) no Hoare annotation was computed. [2023-12-19 23:40:49,017 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 365 376) the Hoare annotation is: (let ((.cse1 (not (= ~pumpRunning~0 0))) (.cse5 (= 2 ~waterLevel~0)) (.cse6 (not (= |old(~waterLevel~0)| 2))) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse4 (< ~pumpRunning~0 1)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6 .cse3) (or .cse1 .cse5 .cse6 .cse3) (or .cse0 .cse4 (< ~switchedOnBeforeTS~0 1) .cse2 .cse3))) [2023-12-19 23:40:49,017 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 188 196) no Hoare annotation was computed. [2023-12-19 23:40:49,017 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 188 196) the Hoare annotation is: true [2023-12-19 23:40:49,019 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-19 23:40:49,021 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-19 23:40:49,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 11:40:49 BoogieIcfgContainer [2023-12-19 23:40:49,035 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-19 23:40:49,035 INFO L158 Benchmark]: Toolchain (without parser) took 9510.21ms. Allocated memory was 220.2MB in the beginning and 374.3MB in the end (delta: 154.1MB). Free memory was 157.3MB in the beginning and 322.3MB in the end (delta: -165.0MB). Peak memory consumption was 186.4MB. Max. memory is 8.0GB. [2023-12-19 23:40:49,036 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 220.2MB. Free memory is still 175.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-19 23:40:49,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.06ms. Allocated memory was 220.2MB in the beginning and 276.8MB in the end (delta: 56.6MB). Free memory was 157.1MB in the beginning and 241.4MB in the end (delta: -84.3MB). Peak memory consumption was 17.6MB. Max. memory is 8.0GB. [2023-12-19 23:40:49,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.73ms. Allocated memory is still 276.8MB. Free memory was 241.4MB in the beginning and 239.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:49,036 INFO L158 Benchmark]: Boogie Preprocessor took 43.71ms. Allocated memory is still 276.8MB. Free memory was 239.3MB in the beginning and 236.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-19 23:40:49,037 INFO L158 Benchmark]: RCFGBuilder took 420.49ms. Allocated memory is still 276.8MB. Free memory was 236.7MB in the beginning and 214.7MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-19 23:40:49,037 INFO L158 Benchmark]: TraceAbstraction took 8570.99ms. Allocated memory was 276.8MB in the beginning and 374.3MB in the end (delta: 97.5MB). Free memory was 214.2MB in the beginning and 322.3MB in the end (delta: -108.1MB). Peak memory consumption was 185.6MB. Max. memory is 8.0GB. [2023-12-19 23:40:49,040 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 220.2MB. Free memory is still 175.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 426.06ms. Allocated memory was 220.2MB in the beginning and 276.8MB in the end (delta: 56.6MB). Free memory was 157.1MB in the beginning and 241.4MB in the end (delta: -84.3MB). Peak memory consumption was 17.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 43.73ms. Allocated memory is still 276.8MB. Free memory was 241.4MB in the beginning and 239.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.71ms. Allocated memory is still 276.8MB. Free memory was 239.3MB in the beginning and 236.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 420.49ms. Allocated memory is still 276.8MB. Free memory was 236.7MB in the beginning and 214.7MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 8570.99ms. Allocated memory was 276.8MB in the beginning and 374.3MB in the end (delta: 97.5MB). Free memory was 214.2MB in the beginning and 322.3MB in the end (delta: -108.1MB). Peak memory consumption was 185.6MB. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 279]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [279] - GenericResultAtLocation [Line: 349]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [349] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [453] - GenericResultAtLocation [Line: 819]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [819] - GenericResultAtLocation [Line: 868]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [868] - GenericResultAtLocation [Line: 906]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [906] * 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: 54]: 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, 71 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 11, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1531 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1493 mSDsluCounter, 2721 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1921 mSDsCounter, 437 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2710 IncrementalHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 437 mSolverCounterUnsat, 800 mSDtfsCounter, 2710 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 656 GetRequests, 524 SyntacticMatches, 8 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=504occurred in iteration=10, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 165 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 705 PreInvPairs, 804 NumberOfFragments, 1001 HoareAnnotationTreeSize, 705 FormulaSimplifications, 3031 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 21 FormulaSimplificationsInter, 6248 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 911 ConstructedInterpolants, 0 QuantifiedInterpolants, 1755 SizeOfPredicates, 5 NumberOfNonLiveVariables, 770 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 483/552 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: 293]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning) && (2 == waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive))) || ((((((1 <= pumpRunning) && (waterLevel <= 1)) && (tmp == 1)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && !((0 == systemActive)))) || (((((pumpRunning == 0) && (waterLevel <= 1)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) || (((((pumpRunning == 0) && (2 == waterLevel)) && (tmp == 1)) && (splverifierCounter == 0)) && !((0 == systemActive)))) - InvariantResult [Line: 292]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-19 23:40:49,078 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...