/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 22:54:52,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 22:54:52,897 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 22:54:52,901 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 22:54:52,902 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 22:54:52,924 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 22:54:52,925 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 22:54:52,925 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 22:54:52,926 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 22:54:52,928 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 22:54:52,929 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 22:54:52,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 22:54:52,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 22:54:52,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 22:54:52,930 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 22:54:52,930 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 22:54:52,930 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 22:54:52,931 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 22:54:52,931 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 22:54:52,931 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 22:54:52,931 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 22:54:52,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 22:54:52,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 22:54:52,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 22:54:52,932 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 22:54:52,932 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 22:54:52,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 22:54:52,932 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 22:54:52,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 22:54:52,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:54:52,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 22:54:52,934 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 22:54:52,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 22:54:52,935 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 22:54:52,935 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 22:54:52,935 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 22:54:52,936 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 22:54:53,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 22:54:53,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 22:54:53,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 22:54:53,114 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 22:54:53,114 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 22:54:53,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2023-12-15 22:54:54,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 22:54:54,406 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 22:54:54,406 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2023-12-15 22:54:54,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea207142d/78680e8f173f43b88d86c35b8b9d7ec6/FLAG20aeac7f3 [2023-12-15 22:54:54,424 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea207142d/78680e8f173f43b88d86c35b8b9d7ec6 [2023-12-15 22:54:54,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 22:54:54,426 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 22:54:54,427 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 22:54:54,427 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 22:54:54,433 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 22:54:54,433 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:54,434 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436ce9a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54, skipping insertion in model container [2023-12-15 22:54:54,435 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:54,487 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 22:54:54,772 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c[18661,18674] [2023-12-15 22:54:54,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:54:54,788 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 22:54:54,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [49] [2023-12-15 22:54:54,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] [2023-12-15 22:54:54,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [116] [2023-12-15 22:54:54,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482] [2023-12-15 22:54:54,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [551] [2023-12-15 22:54:54,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [773] [2023-12-15 22:54:54,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [869] [2023-12-15 22:54:54,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [973] [2023-12-15 22:54:54,871 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c[18661,18674] [2023-12-15 22:54:54,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 22:54:54,886 INFO L206 MainTranslator]: Completed translation [2023-12-15 22:54:54,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54 WrapperNode [2023-12-15 22:54:54,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 22:54:54,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 22:54:54,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 22:54:54,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 22:54:54,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:54,917 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:54,951 INFO L138 Inliner]: procedures = 56, calls = 100, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 215 [2023-12-15 22:54:54,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 22:54:54,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 22:54:54,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 22:54:54,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 22:54:54,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:54,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:54,992 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,018 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 22:54:55,019 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,019 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,022 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,036 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 22:54:55,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 22:54:55,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 22:54:55,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 22:54:55,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (1/1) ... [2023-12-15 22:54:55,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 22:54:55,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:54:55,067 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 22:54:55,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 22:54:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 22:54:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2023-12-15 22:54:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2023-12-15 22:54:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-12-15 22:54:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-12-15 22:54:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2023-12-15 22:54:55,097 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2023-12-15 22:54:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2023-12-15 22:54:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2023-12-15 22:54:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:54:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2023-12-15 22:54:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2023-12-15 22:54:55,098 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2023-12-15 22:54:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 22:54:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2023-12-15 22:54:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2023-12-15 22:54:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 22:54:55,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 22:54:55,187 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 22:54:55,189 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 22:54:55,356 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 22:54:55,415 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 22:54:55,415 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-15 22:54:55,415 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:54:55 BoogieIcfgContainer [2023-12-15 22:54:55,415 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 22:54:55,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 22:54:55,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 22:54:55,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 22:54:55,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:54:54" (1/3) ... [2023-12-15 22:54:55,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63399dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:54:55, skipping insertion in model container [2023-12-15 22:54:55,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:54:54" (2/3) ... [2023-12-15 22:54:55,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63399dbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:54:55, skipping insertion in model container [2023-12-15 22:54:55,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:54:55" (3/3) ... [2023-12-15 22:54:55,421 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2023-12-15 22:54:55,434 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 22:54:55,434 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 22:54:55,467 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 22:54:55,472 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;@11a76bf9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 22:54:55,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 22:54:55,475 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) [2023-12-15 22:54:55,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-15 22:54:55,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:55,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:55,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:55,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:55,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1573926470, now seen corresponding path program 1 times [2023-12-15 22:54:55,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:55,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073150013] [2023-12-15 22:54:55,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:55,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:55,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-12-15 22:54:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:55,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:54:55,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:55,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073150013] [2023-12-15 22:54:55,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073150013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:55,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:55,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 22:54:55,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452296537] [2023-12-15 22:54:55,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:55,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 22:54:55,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:55,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 22:54:55,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:54:55,656 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:55,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:55,697 INFO L93 Difference]: Finished difference Result 140 states and 203 transitions. [2023-12-15 22:54:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 22:54:55,699 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2023-12-15 22:54:55,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:55,705 INFO L225 Difference]: With dead ends: 140 [2023-12-15 22:54:55,705 INFO L226 Difference]: Without dead ends: 66 [2023-12-15 22:54:55,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 22:54:55,710 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:55,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:54:55,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-15 22:54:55,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-12-15 22:54:55,738 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) [2023-12-15 22:54:55,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 90 transitions. [2023-12-15 22:54:55,742 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 90 transitions. Word has length 16 [2023-12-15 22:54:55,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:55,742 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 90 transitions. [2023-12-15 22:54:55,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:55,742 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 90 transitions. [2023-12-15 22:54:55,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-15 22:54:55,744 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:55,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:55,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 22:54:55,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:55,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:55,745 INFO L85 PathProgramCache]: Analyzing trace with hash 868198500, now seen corresponding path program 1 times [2023-12-15 22:54:55,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:55,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668543931] [2023-12-15 22:54:55,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:55,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:55,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:55,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 22:54:55,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:54:55,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:55,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668543931] [2023-12-15 22:54:55,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668543931] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:55,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:55,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:54:55,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827561187] [2023-12-15 22:54:55,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:55,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:54:55,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:55,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:54:55,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:54:55,827 INFO L87 Difference]: Start difference. First operand 66 states and 90 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:55,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:55,858 INFO L93 Difference]: Finished difference Result 105 states and 143 transitions. [2023-12-15 22:54:55,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:54:55,860 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2023-12-15 22:54:55,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:55,861 INFO L225 Difference]: With dead ends: 105 [2023-12-15 22:54:55,861 INFO L226 Difference]: Without dead ends: 58 [2023-12-15 22:54:55,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:54:55,863 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 11 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:55,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 120 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:54:55,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-15 22:54:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-15 22:54:55,868 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) [2023-12-15 22:54:55,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2023-12-15 22:54:55,869 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 17 [2023-12-15 22:54:55,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:55,869 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2023-12-15 22:54:55,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2023-12-15 22:54:55,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-15 22:54:55,870 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:55,875 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:55,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 22:54:55,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:55,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:55,876 INFO L85 PathProgramCache]: Analyzing trace with hash -723715020, now seen corresponding path program 1 times [2023-12-15 22:54:55,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001292746] [2023-12-15 22:54:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:55,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:55,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:55,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:54:55,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:55,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001292746] [2023-12-15 22:54:55,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001292746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:55,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:55,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:54:55,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676607968] [2023-12-15 22:54:55,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:55,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:54:55,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:55,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:54:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:54:55,955 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:56,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:56,010 INFO L93 Difference]: Finished difference Result 114 states and 157 transitions. [2023-12-15 22:54:56,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:54:56,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2023-12-15 22:54:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:56,014 INFO L225 Difference]: With dead ends: 114 [2023-12-15 22:54:56,014 INFO L226 Difference]: Without dead ends: 58 [2023-12-15 22:54:56,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:54:56,015 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 67 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:56,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 65 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:54:56,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-12-15 22:54:56,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2023-12-15 22:54:56,020 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) [2023-12-15 22:54:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 78 transitions. [2023-12-15 22:54:56,021 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 78 transitions. Word has length 20 [2023-12-15 22:54:56,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:56,022 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 78 transitions. [2023-12-15 22:54:56,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:56,022 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 78 transitions. [2023-12-15 22:54:56,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-15 22:54:56,023 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:56,023 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:56,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 22:54:56,023 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:56,023 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:56,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1903214799, now seen corresponding path program 1 times [2023-12-15 22:54:56,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:56,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665736331] [2023-12-15 22:54:56,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:56,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:56,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-15 22:54:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:54:56,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:56,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665736331] [2023-12-15 22:54:56,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665736331] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:56,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:56,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 22:54:56,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766865468] [2023-12-15 22:54:56,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:56,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 22:54:56,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:56,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 22:54:56,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:54:56,083 INFO L87 Difference]: Start difference. First operand 58 states and 78 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:56,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:56,120 INFO L93 Difference]: Finished difference Result 153 states and 208 transitions. [2023-12-15 22:54:56,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 22:54:56,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2023-12-15 22:54:56,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:56,125 INFO L225 Difference]: With dead ends: 153 [2023-12-15 22:54:56,125 INFO L226 Difference]: Without dead ends: 97 [2023-12-15 22:54:56,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 22:54:56,127 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 52 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:56,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 119 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:54:56,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-15 22:54:56,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2023-12-15 22:54:56,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 69 states have (on average 1.3768115942028984) internal successors, (95), 77 states have internal predecessors, (95), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2023-12-15 22:54:56,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 125 transitions. [2023-12-15 22:54:56,144 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 125 transitions. Word has length 25 [2023-12-15 22:54:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:56,144 INFO L495 AbstractCegarLoop]: Abstraction has 95 states and 125 transitions. [2023-12-15 22:54:56,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-15 22:54:56,145 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2023-12-15 22:54:56,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-15 22:54:56,147 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:56,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:56,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 22:54:56,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:56,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:56,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1621842416, now seen corresponding path program 1 times [2023-12-15 22:54:56,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:56,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946570531] [2023-12-15 22:54:56,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:56,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:56,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:54:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:54:56,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:56,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946570531] [2023-12-15 22:54:56,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946570531] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:56,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:56,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:54:56,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667490349] [2023-12-15 22:54:56,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:56,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:54:56,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:56,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:54:56,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:54:56,309 INFO L87 Difference]: Start difference. First operand 95 states and 125 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:54:56,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:56,532 INFO L93 Difference]: Finished difference Result 318 states and 448 transitions. [2023-12-15 22:54:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:54:56,533 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2023-12-15 22:54:56,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:56,538 INFO L225 Difference]: With dead ends: 318 [2023-12-15 22:54:56,538 INFO L226 Difference]: Without dead ends: 225 [2023-12-15 22:54:56,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:54:56,545 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 154 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:56,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 229 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:54:56,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2023-12-15 22:54:56,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 218. [2023-12-15 22:54:56,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.3522012578616351) internal successors, (215), 172 states have internal predecessors, (215), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-12-15 22:54:56,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 299 transitions. [2023-12-15 22:54:56,570 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 299 transitions. Word has length 35 [2023-12-15 22:54:56,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:56,570 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 299 transitions. [2023-12-15 22:54:56,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:54:56,571 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 299 transitions. [2023-12-15 22:54:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-15 22:54:56,572 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:56,572 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:56,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 22:54:56,572 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:56,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:56,572 INFO L85 PathProgramCache]: Analyzing trace with hash 67101326, now seen corresponding path program 1 times [2023-12-15 22:54:56,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:56,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929190365] [2023-12-15 22:54:56,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:56,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:56,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:56,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-12-15 22:54:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 22:54:56,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929190365] [2023-12-15 22:54:56,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929190365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:56,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:56,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:54:56,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410894775] [2023-12-15 22:54:56,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:56,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:54:56,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:56,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:54:56,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:54:56,639 INFO L87 Difference]: Start difference. First operand 218 states and 299 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-15 22:54:56,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:56,776 INFO L93 Difference]: Finished difference Result 230 states and 309 transitions. [2023-12-15 22:54:56,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-15 22:54:56,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 35 [2023-12-15 22:54:56,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:56,779 INFO L225 Difference]: With dead ends: 230 [2023-12-15 22:54:56,779 INFO L226 Difference]: Without dead ends: 228 [2023-12-15 22:54:56,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:54:56,784 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 92 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:56,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 170 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:54:56,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-12-15 22:54:56,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 218. [2023-12-15 22:54:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 159 states have (on average 1.3270440251572326) internal successors, (211), 172 states have internal predecessors, (211), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-12-15 22:54:56,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 295 transitions. [2023-12-15 22:54:56,821 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 295 transitions. Word has length 35 [2023-12-15 22:54:56,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:56,821 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 295 transitions. [2023-12-15 22:54:56,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-15 22:54:56,822 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 295 transitions. [2023-12-15 22:54:56,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:54:56,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:56,826 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] [2023-12-15 22:54:56,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 22:54:56,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:56,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:56,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1325641983, now seen corresponding path program 1 times [2023-12-15 22:54:56,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:56,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892469152] [2023-12-15 22:54:56,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:56,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:56,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:56,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:54:56,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:56,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:54:56,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:56,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892469152] [2023-12-15 22:54:56,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892469152] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:56,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:56,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 22:54:56,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068638607] [2023-12-15 22:54:56,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:56,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:54:56,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:56,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:54:56,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 22:54:56,892 INFO L87 Difference]: Start difference. First operand 218 states and 295 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:54:57,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:57,003 INFO L93 Difference]: Finished difference Result 442 states and 616 transitions. [2023-12-15 22:54:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 22:54:57,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-15 22:54:57,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:57,006 INFO L225 Difference]: With dead ends: 442 [2023-12-15 22:54:57,006 INFO L226 Difference]: Without dead ends: 226 [2023-12-15 22:54:57,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-15 22:54:57,009 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 49 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:57,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 173 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:54:57,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-15 22:54:57,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2023-12-15 22:54:57,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 161 states have (on average 1.3229813664596273) internal successors, (213), 174 states have internal predecessors, (213), 30 states have call successors, (30), 24 states have call predecessors, (30), 28 states have return successors, (54), 30 states have call predecessors, (54), 30 states have call successors, (54) [2023-12-15 22:54:57,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 297 transitions. [2023-12-15 22:54:57,032 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 297 transitions. Word has length 38 [2023-12-15 22:54:57,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:57,033 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 297 transitions. [2023-12-15 22:54:57,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:54:57,033 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 297 transitions. [2023-12-15 22:54:57,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-15 22:54:57,035 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:57,035 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] [2023-12-15 22:54:57,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 22:54:57,036 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:57,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:57,036 INFO L85 PathProgramCache]: Analyzing trace with hash 507993533, now seen corresponding path program 1 times [2023-12-15 22:54:57,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:57,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581681161] [2023-12-15 22:54:57,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:57,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:57,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:57,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 22:54:57,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:54:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581681161] [2023-12-15 22:54:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581681161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:57,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:57,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 22:54:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450003911] [2023-12-15 22:54:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:57,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 22:54:57,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:57,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 22:54:57,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 22:54:57,125 INFO L87 Difference]: Start difference. First operand 220 states and 297 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:54:57,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:57,244 INFO L93 Difference]: Finished difference Result 423 states and 580 transitions. [2023-12-15 22:54:57,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:54:57,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2023-12-15 22:54:57,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:57,246 INFO L225 Difference]: With dead ends: 423 [2023-12-15 22:54:57,246 INFO L226 Difference]: Without dead ends: 205 [2023-12-15 22:54:57,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:54:57,249 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 123 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:57,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 154 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:54:57,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-15 22:54:57,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2023-12-15 22:54:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 148 states have (on average 1.3175675675675675) internal successors, (195), 159 states have internal predecessors, (195), 28 states have call successors, (28), 24 states have call predecessors, (28), 26 states have return successors, (44), 27 states have call predecessors, (44), 28 states have call successors, (44) [2023-12-15 22:54:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 267 transitions. [2023-12-15 22:54:57,262 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 267 transitions. Word has length 38 [2023-12-15 22:54:57,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:57,262 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 267 transitions. [2023-12-15 22:54:57,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-15 22:54:57,263 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 267 transitions. [2023-12-15 22:54:57,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-15 22:54:57,264 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:57,264 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] [2023-12-15 22:54:57,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 22:54:57,264 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:57,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:57,265 INFO L85 PathProgramCache]: Analyzing trace with hash -835624159, now seen corresponding path program 1 times [2023-12-15 22:54:57,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:57,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348960044] [2023-12-15 22:54:57,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:57,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:54:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-12-15 22:54:57,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-12-15 22:54:57,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:57,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:54:57,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:57,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348960044] [2023-12-15 22:54:57,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348960044] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:57,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 22:54:57,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-12-15 22:54:57,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152407381] [2023-12-15 22:54:57,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:57,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-15 22:54:57,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:57,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-15 22:54:57,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:54:57,461 INFO L87 Difference]: Start difference. First operand 203 states and 267 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:54:57,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:57,861 INFO L93 Difference]: Finished difference Result 690 states and 942 transitions. [2023-12-15 22:54:57,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-12-15 22:54:57,861 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 42 [2023-12-15 22:54:57,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:57,864 INFO L225 Difference]: With dead ends: 690 [2023-12-15 22:54:57,864 INFO L226 Difference]: Without dead ends: 489 [2023-12-15 22:54:57,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2023-12-15 22:54:57,867 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 261 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:57,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 285 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 22:54:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-12-15 22:54:57,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 447. [2023-12-15 22:54:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 321 states have (on average 1.2710280373831775) internal successors, (408), 353 states have internal predecessors, (408), 66 states have call successors, (66), 48 states have call predecessors, (66), 59 states have return successors, (118), 64 states have call predecessors, (118), 66 states have call successors, (118) [2023-12-15 22:54:57,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 592 transitions. [2023-12-15 22:54:57,901 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 592 transitions. Word has length 42 [2023-12-15 22:54:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:57,901 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 592 transitions. [2023-12-15 22:54:57,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 6 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-15 22:54:57,902 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 592 transitions. [2023-12-15 22:54:57,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-15 22:54:57,903 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:57,904 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:57,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 22:54:57,904 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:57,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:57,904 INFO L85 PathProgramCache]: Analyzing trace with hash 1180691550, now seen corresponding path program 1 times [2023-12-15 22:54:57,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:57,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815767513] [2023-12-15 22:54:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:57,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:54:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:54:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:54:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:54:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:54:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:54:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:54:58,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,059 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-12-15 22:54:58,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815767513] [2023-12-15 22:54:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815767513] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:54:58,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116470214] [2023-12-15 22:54:58,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:58,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:54:58,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:54:58,076 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:54:58,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 22:54:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,209 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-15 22:54:58,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:54:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-15 22:54:58,325 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:54:58,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116470214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:58,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:54:58,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 9 [2023-12-15 22:54:58,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511999402] [2023-12-15 22:54:58,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:58,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 22:54:58,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:58,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 22:54:58,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-15 22:54:58,327 INFO L87 Difference]: Start difference. First operand 447 states and 592 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 22:54:58,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:58,464 INFO L93 Difference]: Finished difference Result 1244 states and 1706 transitions. [2023-12-15 22:54:58,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 22:54:58,467 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 79 [2023-12-15 22:54:58,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:58,471 INFO L225 Difference]: With dead ends: 1244 [2023-12-15 22:54:58,471 INFO L226 Difference]: Without dead ends: 799 [2023-12-15 22:54:58,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:54:58,472 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 90 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:58,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 290 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 22:54:58,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-12-15 22:54:58,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 791. [2023-12-15 22:54:58,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 571 states have (on average 1.2679509632224168) internal successors, (724), 615 states have internal predecessors, (724), 119 states have call successors, (119), 98 states have call predecessors, (119), 100 states have return successors, (230), 107 states have call predecessors, (230), 119 states have call successors, (230) [2023-12-15 22:54:58,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1073 transitions. [2023-12-15 22:54:58,523 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1073 transitions. Word has length 79 [2023-12-15 22:54:58,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:58,523 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1073 transitions. [2023-12-15 22:54:58,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 22:54:58,523 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1073 transitions. [2023-12-15 22:54:58,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-15 22:54:58,524 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 22:54:58,525 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:54:58,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 22:54:58,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 22:54:58,731 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 22:54:58,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 22:54:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash 363043100, now seen corresponding path program 1 times [2023-12-15 22:54:58,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 22:54:58,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252633791] [2023-12-15 22:54:58,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:58,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 22:54:58,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-12-15 22:54:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-12-15 22:54:58,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-12-15 22:54:58,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-15 22:54:58,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 22:54:58,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-12-15 22:54:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-15 22:54:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 22:54:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-12-15 22:54:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,865 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-15 22:54:58,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 22:54:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252633791] [2023-12-15 22:54:58,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252633791] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 22:54:58,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605174360] [2023-12-15 22:54:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 22:54:58,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 22:54:58,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 22:54:58,866 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 22:54:58,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 22:54:58,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 22:54:58,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-15 22:54:58,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 22:54:58,995 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-15 22:54:58,996 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 22:54:58,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605174360] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 22:54:58,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 22:54:58,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2023-12-15 22:54:58,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414007333] [2023-12-15 22:54:58,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 22:54:58,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 22:54:58,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 22:54:58,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 22:54:58,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:54:58,997 INFO L87 Difference]: Start difference. First operand 791 states and 1073 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-15 22:54:59,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 22:54:59,031 INFO L93 Difference]: Finished difference Result 1120 states and 1501 transitions. [2023-12-15 22:54:59,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 22:54:59,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 79 [2023-12-15 22:54:59,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 22:54:59,031 INFO L225 Difference]: With dead ends: 1120 [2023-12-15 22:54:59,031 INFO L226 Difference]: Without dead ends: 0 [2023-12-15 22:54:59,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-12-15 22:54:59,034 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 1 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 22:54:59,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 167 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 22:54:59,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-12-15 22:54:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-12-15 22:54:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-15 22:54:59,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-12-15 22:54:59,034 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2023-12-15 22:54:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 22:54:59,035 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-12-15 22:54:59,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-15 22:54:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-12-15 22:54:59,035 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-15 22:54:59,037 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 22:54:59,058 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 22:54:59,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-15 22:54:59,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-12-15 22:55:00,102 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 586 592) no Hoare annotation was computed. [2023-12-15 22:55:00,102 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 586 592) the Hoare annotation is: true [2023-12-15 22:55:00,103 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 897 908) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2)) (or .cse0 (not (= ~pumpRunning~0 0)) (< ~waterLevel~0 1) .cse1 .cse2))) [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point L800(lines 775 804) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point L796(line 796) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point L789(lines 789 793) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L902 garLoopResultBuilder]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2023-12-15 22:55:00,103 INFO L902 garLoopResultBuilder]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2023-12-15 22:55:00,103 INFO L902 garLoopResultBuilder]: At program point L781(line 781) the Hoare annotation is: true [2023-12-15 22:55:00,103 INFO L899 garLoopResultBuilder]: For program point L781-1(line 781) no Hoare annotation was computed. [2023-12-15 22:55:00,103 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 775 804) the Hoare annotation is: true [2023-12-15 22:55:00,103 INFO L895 garLoopResultBuilder]: At program point L634(line 634) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2)) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) .cse0))) [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L895 garLoopResultBuilder]: At program point L639(line 639) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or (not .cse1) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0))) [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L639-1(lines 620 644) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 74) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L573-1(lines 573 579) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 53 77) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 767) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L763-2(lines 763 767) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L978(line 978) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 565 584) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L628(lines 628 636) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L899 garLoopResultBuilder]: For program point L624(lines 624 641) no Hoare annotation was computed. [2023-12-15 22:55:00,104 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 562 585) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) (< |old(~waterLevel~0)| 1) (and (= ~pumpRunning~0 0) .cse1) .cse0))) [2023-12-15 22:55:00,104 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~waterLevel~0)| 2))) (and (or (< 1 |old(~waterLevel~0)|) .cse0 (< |old(~waterLevel~0)| 1) .cse1 (and .cse2 (= ~waterLevel~0 1))) (or .cse1 .cse3 (and (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0)) (and .cse2 (<= 1 ~waterLevel~0))) (or .cse0 .cse1 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L877(lines 877 881) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L877-2(lines 873 884) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 562 585) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 978) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 909 917) the Hoare annotation is: true [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L895 garLoopResultBuilder]: At program point L543(lines 496 544) the Hoare annotation is: false [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L498(lines 497 542) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 538) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L895 garLoopResultBuilder]: At program point L519(line 519) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) .cse0 .cse1))) [2023-12-15 22:55:00,105 INFO L895 garLoopResultBuilder]: At program point L540(lines 497 542) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) .cse0 .cse1))) [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 513) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point L507-1(lines 507 513) no Hoare annotation was computed. [2023-12-15 22:55:00,105 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 537) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L895 garLoopResultBuilder]: At program point L533-2(lines 527 538) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 523) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 517 523) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L546(lines 487 550) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L895 garLoopResultBuilder]: At program point L509(line 509) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)) (and (= ~methaneLevelCritical~0 0) (<= 2 ~waterLevel~0) .cse0 .cse1))) [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 863) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L856-2(lines 856 863) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L954(lines 954 960) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L661(lines 661 667) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L661-2(lines 654 670) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L895 garLoopResultBuilder]: At program point L684(line 684) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L684-1(line 684) no Hoare annotation was computed. [2023-12-15 22:55:00,106 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 594 618) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-15 22:55:00,106 INFO L899 garLoopResultBuilder]: For program point L744(lines 744 748) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point L744-2(lines 744 748) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point isHighWaterSensorDry_returnLabel#1(lines 950 963) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L895 garLoopResultBuilder]: At program point L608(line 608) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0)) (.cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (not .cse2) (= ~waterLevel~0 1)))) [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 594 618) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point L602(lines 602 610) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point L598(lines 598 615) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L895 garLoopResultBuilder]: At program point L613(line 613) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (< ~waterLevel~0 1) (not (= 1 ~systemActive~0))) [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point L613-1(lines 594 618) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2023-12-15 22:55:00,107 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 885 896) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (< |old(~waterLevel~0)| 1) (not (= ~pumpRunning~0 0)) .cse0 .cse1) (or .cse0 (< |old(~waterLevel~0)| 2) (not (= ~methaneLevelCritical~0 0)) .cse1))) [2023-12-15 22:55:00,107 INFO L899 garLoopResultBuilder]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2023-12-15 22:55:00,109 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 22:55:00,110 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 22:55:00,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:55:00 BoogieIcfgContainer [2023-12-15 22:55:00,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 22:55:00,124 INFO L158 Benchmark]: Toolchain (without parser) took 5697.29ms. Allocated memory was 350.2MB in the beginning and 504.4MB in the end (delta: 154.1MB). Free memory was 305.4MB in the beginning and 348.5MB in the end (delta: -43.1MB). Peak memory consumption was 112.6MB. Max. memory is 8.0GB. [2023-12-15 22:55:00,124 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 22:55:00,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.48ms. Allocated memory is still 350.2MB. Free memory was 305.4MB in the beginning and 285.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2023-12-15 22:55:00,124 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.46ms. Allocated memory is still 350.2MB. Free memory was 285.5MB in the beginning and 283.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:00,124 INFO L158 Benchmark]: Boogie Preprocessor took 85.97ms. Allocated memory is still 350.2MB. Free memory was 283.4MB in the beginning and 280.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-15 22:55:00,125 INFO L158 Benchmark]: RCFGBuilder took 377.45ms. Allocated memory is still 350.2MB. Free memory was 280.8MB in the beginning and 258.7MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2023-12-15 22:55:00,125 INFO L158 Benchmark]: TraceAbstraction took 4706.09ms. Allocated memory was 350.2MB in the beginning and 504.4MB in the end (delta: 154.1MB). Free memory was 257.7MB in the beginning and 348.5MB in the end (delta: -90.8MB). Peak memory consumption was 64.4MB. Max. memory is 8.0GB. [2023-12-15 22:55:00,126 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 136.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 460.48ms. Allocated memory is still 350.2MB. Free memory was 305.4MB in the beginning and 285.5MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.46ms. Allocated memory is still 350.2MB. Free memory was 285.5MB in the beginning and 283.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 85.97ms. Allocated memory is still 350.2MB. Free memory was 283.4MB in the beginning and 280.8MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 377.45ms. Allocated memory is still 350.2MB. Free memory was 280.8MB in the beginning and 258.7MB in the end (delta: 22.0MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4706.09ms. Allocated memory was 350.2MB in the beginning and 504.4MB in the end (delta: 154.1MB). Free memory was 257.7MB in the beginning and 348.5MB in the end (delta: -90.8MB). Peak memory consumption was 64.4MB. 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,"Specification1_spec.i","") [49] - GenericResultAtLocation [Line: 78]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [78] - GenericResultAtLocation [Line: 116]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [116] - GenericResultAtLocation [Line: 482]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [482] - GenericResultAtLocation [Line: 551]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [551] - GenericResultAtLocation [Line: 773]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [773] - GenericResultAtLocation [Line: 869]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [869] - GenericResultAtLocation [Line: 973]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [973] * 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: 978]: 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: 4.7s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 924 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 900 mSDsluCounter, 1853 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1158 mSDsCounter, 241 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1202 IncrementalHoareTripleChecker+Invalid, 1443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 241 mSolverCounterUnsat, 695 mSDtfsCounter, 1202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 324 GetRequests, 249 SyntacticMatches, 2 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=791occurred in iteration=10, InterpolantAutomatonStates: 75, 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, 77 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 753 PreInvPairs, 834 NumberOfFragments, 413 HoareAnnotationTreeSize, 753 FormulaSimplifications, 360 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FormulaSimplificationsInter, 2559 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 582 NumberOfCodeBlocks, 582 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 569 ConstructedInterpolants, 0 QuantifiedInterpolants, 957 SizeOfPredicates, 4 NumberOfNonLiveVariables, 587 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 106/110 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: 497]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel)) || ((((methaneLevelCritical == 0) && (2 <= waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 496]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-12-15 22:55:00,151 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...