/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 01:06:31,345 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 01:06:31,417 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 01:06:31,420 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 01:06:31,420 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 01:06:31,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 01:06:31,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 01:06:31,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 01:06:31,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 01:06:31,438 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 01:06:31,438 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 01:06:31,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 01:06:31,438 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 01:06:31,439 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 01:06:31,440 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 01:06:31,440 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 01:06:31,440 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 01:06:31,440 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 01:06:31,440 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 01:06:31,440 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 01:06:31,441 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 01:06:31,441 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 01:06:31,441 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 01:06:31,441 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 01:06:31,441 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 01:06:31,442 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 01:06:31,442 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 01:06:31,442 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 01:06:31,442 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 01:06:31,442 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 01:06:31,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 01:06:31,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 01:06:31,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:06:31,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 01:06:31,444 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 01:06:31,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 01:06:31,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 01:06:31,445 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 01:06:31,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 01:06:31,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 01:06:31,647 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 01:06:31,647 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 01:06:31,648 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 01:06:31,648 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c [2023-12-16 01:06:32,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 01:06:32,805 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 01:06:32,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c [2023-12-16 01:06:32,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed3a6918/7687dcf2937648c38a4fabe32e037b66/FLAG6c54b7a13 [2023-12-16 01:06:32,825 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4ed3a6918/7687dcf2937648c38a4fabe32e037b66 [2023-12-16 01:06:32,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 01:06:32,830 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 01:06:32,831 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 01:06:32,832 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 01:06:32,835 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 01:06:32,836 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:06:32" (1/1) ... [2023-12-16 01:06:32,836 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@105191ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:32, skipping insertion in model container [2023-12-16 01:06:32,837 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 01:06:32" (1/1) ... [2023-12-16 01:06:32,874 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 01:06:32,989 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c[913,926] [2023-12-16 01:06:33,028 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c[5977,5990] [2023-12-16 01:06:33,086 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:06:33,097 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 01:06:33,110 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c[913,926] [2023-12-16 01:06:33,124 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.06.cil-2.c[5977,5990] [2023-12-16 01:06:33,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 01:06:33,170 INFO L206 MainTranslator]: Completed translation [2023-12-16 01:06:33,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33 WrapperNode [2023-12-16 01:06:33,170 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 01:06:33,171 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 01:06:33,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 01:06:33,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 01:06:33,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,202 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,236 INFO L138 Inliner]: procedures = 60, calls = 66, calls flagged for inlining = 35, calls inlined = 35, statements flattened = 723 [2023-12-16 01:06:33,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 01:06:33,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 01:06:33,238 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 01:06:33,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 01:06:33,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,251 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,267 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 01:06:33,267 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,267 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,295 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,297 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 01:06:33,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 01:06:33,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 01:06:33,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 01:06:33,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (1/1) ... [2023-12-16 01:06:33,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 01:06:33,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:33,343 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 01:06:33,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 01:06:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 01:06:33,373 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 01:06:33,373 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 01:06:33,374 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-16 01:06:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-16 01:06:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 01:06:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 01:06:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 01:06:33,375 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 01:06:33,375 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 01:06:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 01:06:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 01:06:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 01:06:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 01:06:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 01:06:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 01:06:33,376 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 01:06:33,376 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 01:06:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 01:06:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 01:06:33,377 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 01:06:33,377 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 01:06:33,486 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 01:06:33,488 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 01:06:34,030 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 01:06:34,072 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 01:06:34,072 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 01:06:34,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:06:34 BoogieIcfgContainer [2023-12-16 01:06:34,076 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 01:06:34,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 01:06:34,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 01:06:34,080 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 01:06:34,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 01:06:32" (1/3) ... [2023-12-16 01:06:34,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2179f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:06:34, skipping insertion in model container [2023-12-16 01:06:34,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 01:06:33" (2/3) ... [2023-12-16 01:06:34,081 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2179f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 01:06:34, skipping insertion in model container [2023-12-16 01:06:34,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 01:06:34" (3/3) ... [2023-12-16 01:06:34,082 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.06.cil-2.c [2023-12-16 01:06:34,093 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 01:06:34,093 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 01:06:34,130 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 01:06:34,142 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;@6c0d0b3a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 01:06:34,142 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 01:06:34,145 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 235 states have (on average 1.6978723404255318) internal successors, (399), 240 states have internal predecessors, (399), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 01:06:34,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 01:06:34,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:34,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:34,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:34,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:34,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1695367655, now seen corresponding path program 1 times [2023-12-16 01:06:34,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:34,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411909075] [2023-12-16 01:06:34,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:34,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:34,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:34,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:34,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411909075] [2023-12-16 01:06:34,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411909075] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:34,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:34,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:34,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677166672] [2023-12-16 01:06:34,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:34,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:34,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:34,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:34,421 INFO L87 Difference]: Start difference. First operand has 273 states, 235 states have (on average 1.6978723404255318) internal successors, (399), 240 states have internal predecessors, (399), 26 states have call successors, (26), 9 states have call predecessors, (26), 9 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:34,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:34,822 INFO L93 Difference]: Finished difference Result 593 states and 978 transitions. [2023-12-16 01:06:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:34,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-12-16 01:06:34,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:34,832 INFO L225 Difference]: With dead ends: 593 [2023-12-16 01:06:34,832 INFO L226 Difference]: Without dead ends: 331 [2023-12-16 01:06:34,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:34,843 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 544 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:34,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 499 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2023-12-16 01:06:34,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 325. [2023-12-16 01:06:34,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 282 states have (on average 1.5460992907801419) internal successors, (436), 286 states have internal predecessors, (436), 30 states have call successors, (30), 11 states have call predecessors, (30), 11 states have return successors, (34), 28 states have call predecessors, (34), 28 states have call successors, (34) [2023-12-16 01:06:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 500 transitions. [2023-12-16 01:06:34,924 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 500 transitions. Word has length 37 [2023-12-16 01:06:34,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:34,925 INFO L495 AbstractCegarLoop]: Abstraction has 325 states and 500 transitions. [2023-12-16 01:06:34,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:34,926 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 500 transitions. [2023-12-16 01:06:34,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 01:06:34,933 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:34,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:34,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 01:06:34,933 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:34,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:34,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1778259796, now seen corresponding path program 1 times [2023-12-16 01:06:34,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:34,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29159209] [2023-12-16 01:06:34,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:34,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:34,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:34,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-16 01:06:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:35,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:35,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29159209] [2023-12-16 01:06:35,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29159209] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:35,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:35,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:35,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102854009] [2023-12-16 01:06:35,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:35,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:35,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:35,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:35,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:35,018 INFO L87 Difference]: Start difference. First operand 325 states and 500 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:35,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:35,317 INFO L93 Difference]: Finished difference Result 559 states and 844 transitions. [2023-12-16 01:06:35,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:35,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-12-16 01:06:35,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:35,320 INFO L225 Difference]: With dead ends: 559 [2023-12-16 01:06:35,320 INFO L226 Difference]: Without dead ends: 448 [2023-12-16 01:06:35,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:35,322 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 557 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:35,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 493 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:35,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2023-12-16 01:06:35,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 425. [2023-12-16 01:06:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 369 states have (on average 1.5013550135501355) internal successors, (554), 374 states have internal predecessors, (554), 38 states have call successors, (38), 15 states have call predecessors, (38), 16 states have return successors, (48), 36 states have call predecessors, (48), 36 states have call successors, (48) [2023-12-16 01:06:35,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 640 transitions. [2023-12-16 01:06:35,343 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 640 transitions. Word has length 38 [2023-12-16 01:06:35,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:35,343 INFO L495 AbstractCegarLoop]: Abstraction has 425 states and 640 transitions. [2023-12-16 01:06:35,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:35,344 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 640 transitions. [2023-12-16 01:06:35,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 01:06:35,345 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:35,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:35,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 01:06:35,345 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:35,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:35,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1372382596, now seen corresponding path program 1 times [2023-12-16 01:06:35,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:35,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224844747] [2023-12-16 01:06:35,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:35,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:35,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-16 01:06:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:35,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:35,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224844747] [2023-12-16 01:06:35,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224844747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:35,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:35,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:35,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044622628] [2023-12-16 01:06:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:35,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:35,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:35,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:35,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:35,394 INFO L87 Difference]: Start difference. First operand 425 states and 640 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:35,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:35,676 INFO L93 Difference]: Finished difference Result 845 states and 1221 transitions. [2023-12-16 01:06:35,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:35,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-12-16 01:06:35,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:35,681 INFO L225 Difference]: With dead ends: 845 [2023-12-16 01:06:35,681 INFO L226 Difference]: Without dead ends: 634 [2023-12-16 01:06:35,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:35,686 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 232 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:35,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 681 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:06:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2023-12-16 01:06:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 530. [2023-12-16 01:06:35,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 462 states have (on average 1.4783549783549783) internal successors, (683), 469 states have internal predecessors, (683), 44 states have call successors, (44), 21 states have call predecessors, (44), 22 states have return successors, (54), 40 states have call predecessors, (54), 42 states have call successors, (54) [2023-12-16 01:06:35,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 781 transitions. [2023-12-16 01:06:35,723 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 781 transitions. Word has length 39 [2023-12-16 01:06:35,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:35,723 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 781 transitions. [2023-12-16 01:06:35,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 01:06:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 781 transitions. [2023-12-16 01:06:35,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 01:06:35,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:35,726 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 01:06:35,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-16 01:06:35,727 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:35,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:35,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1200848462, now seen corresponding path program 1 times [2023-12-16 01:06:35,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:35,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197617944] [2023-12-16 01:06:35,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:35,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:35,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-12-16 01:06:35,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 01:06:35,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:35,817 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-16 01:06:35,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:35,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197617944] [2023-12-16 01:06:35,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197617944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:35,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:35,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:35,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751510726] [2023-12-16 01:06:35,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:35,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:35,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:35,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:35,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:35,819 INFO L87 Difference]: Start difference. First operand 530 states and 781 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:36,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:36,102 INFO L93 Difference]: Finished difference Result 1046 states and 1498 transitions. [2023-12-16 01:06:36,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:36,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-12-16 01:06:36,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:36,106 INFO L225 Difference]: With dead ends: 1046 [2023-12-16 01:06:36,106 INFO L226 Difference]: Without dead ends: 730 [2023-12-16 01:06:36,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:36,108 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 217 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:36,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 725 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:06:36,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2023-12-16 01:06:36,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 696. [2023-12-16 01:06:36,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 604 states have (on average 1.4221854304635762) internal successors, (859), 613 states have internal predecessors, (859), 58 states have call successors, (58), 29 states have call predecessors, (58), 32 states have return successors, (78), 54 states have call predecessors, (78), 56 states have call successors, (78) [2023-12-16 01:06:36,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 995 transitions. [2023-12-16 01:06:36,158 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 995 transitions. Word has length 54 [2023-12-16 01:06:36,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:36,160 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 995 transitions. [2023-12-16 01:06:36,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:36,160 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 995 transitions. [2023-12-16 01:06:36,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 01:06:36,161 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:36,162 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:36,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-16 01:06:36,162 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:36,163 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:36,163 INFO L85 PathProgramCache]: Analyzing trace with hash 456550865, now seen corresponding path program 1 times [2023-12-16 01:06:36,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:36,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771315240] [2023-12-16 01:06:36,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:36,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:36,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-16 01:06:36,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-12-16 01:06:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,260 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 01:06:36,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:36,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771315240] [2023-12-16 01:06:36,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771315240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:36,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:36,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:36,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411004958] [2023-12-16 01:06:36,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:36,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:36,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:36,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:36,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:36,262 INFO L87 Difference]: Start difference. First operand 696 states and 995 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:36,526 INFO L93 Difference]: Finished difference Result 1275 states and 1774 transitions. [2023-12-16 01:06:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:36,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-12-16 01:06:36,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:36,530 INFO L225 Difference]: With dead ends: 1275 [2023-12-16 01:06:36,530 INFO L226 Difference]: Without dead ends: 873 [2023-12-16 01:06:36,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:36,531 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 543 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 563 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:36,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [563 Valid, 505 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:06:36,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-16 01:06:36,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 824. [2023-12-16 01:06:36,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 716 states have (on average 1.388268156424581) internal successors, (994), 727 states have internal predecessors, (994), 66 states have call successors, (66), 35 states have call predecessors, (66), 40 states have return successors, (92), 62 states have call predecessors, (92), 64 states have call successors, (92) [2023-12-16 01:06:36,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1152 transitions. [2023-12-16 01:06:36,566 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1152 transitions. Word has length 59 [2023-12-16 01:06:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:36,566 INFO L495 AbstractCegarLoop]: Abstraction has 824 states and 1152 transitions. [2023-12-16 01:06:36,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1152 transitions. [2023-12-16 01:06:36,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:06:36,568 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:36,568 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 01:06:36,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-16 01:06:36,568 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:36,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:36,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1103850820, now seen corresponding path program 1 times [2023-12-16 01:06:36,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:36,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791200521] [2023-12-16 01:06:36,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:36,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:36,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:06:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:06:36,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:36,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791200521] [2023-12-16 01:06:36,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791200521] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:36,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:36,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 01:06:36,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884679656] [2023-12-16 01:06:36,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:36,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 01:06:36,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:36,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 01:06:36,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:36,633 INFO L87 Difference]: Start difference. First operand 824 states and 1152 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:36,959 INFO L93 Difference]: Finished difference Result 1310 states and 1814 transitions. [2023-12-16 01:06:36,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:36,960 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-16 01:06:36,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:36,962 INFO L225 Difference]: With dead ends: 1310 [2023-12-16 01:06:36,962 INFO L226 Difference]: Without dead ends: 772 [2023-12-16 01:06:36,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:36,968 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 169 mSDsluCounter, 627 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 879 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:36,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 879 Invalid, 662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 637 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 01:06:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2023-12-16 01:06:36,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 699. [2023-12-16 01:06:36,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 608 states have (on average 1.393092105263158) internal successors, (847), 618 states have internal predecessors, (847), 56 states have call successors, (56), 29 states have call predecessors, (56), 33 states have return successors, (74), 52 states have call predecessors, (74), 54 states have call successors, (74) [2023-12-16 01:06:36,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 977 transitions. [2023-12-16 01:06:36,994 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 977 transitions. Word has length 60 [2023-12-16 01:06:36,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:36,995 INFO L495 AbstractCegarLoop]: Abstraction has 699 states and 977 transitions. [2023-12-16 01:06:36,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 01:06:36,995 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 977 transitions. [2023-12-16 01:06:36,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 01:06:36,996 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:36,996 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 01:06:36,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-16 01:06:36,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:36,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash 693788796, now seen corresponding path program 1 times [2023-12-16 01:06:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:36,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350199743] [2023-12-16 01:06:36,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:36,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:06:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 01:06:37,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:37,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350199743] [2023-12-16 01:06:37,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350199743] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:37,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563871010] [2023-12-16 01:06:37,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:37,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:37,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:37,098 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:06:37,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 01:06:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-16 01:06:37,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:06:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:37,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:06:37,325 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:06:37,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563871010] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:37,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-16 01:06:37,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2023-12-16 01:06:37,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351732563] [2023-12-16 01:06:37,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:37,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:37,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:37,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:37,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:37,327 INFO L87 Difference]: Start difference. First operand 699 states and 977 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:37,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:37,433 INFO L93 Difference]: Finished difference Result 748 states and 1038 transitions. [2023-12-16 01:06:37,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 01:06:37,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-12-16 01:06:37,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:37,437 INFO L225 Difference]: With dead ends: 748 [2023-12-16 01:06:37,438 INFO L226 Difference]: Without dead ends: 745 [2023-12-16 01:06:37,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:06:37,439 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 736 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:37,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 455 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:06:37,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 745 states. [2023-12-16 01:06:37,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 745 to 698. [2023-12-16 01:06:37,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 608 states have (on average 1.3898026315789473) internal successors, (845), 617 states have internal predecessors, (845), 55 states have call successors, (55), 29 states have call predecessors, (55), 33 states have return successors, (74), 52 states have call predecessors, (74), 54 states have call successors, (74) [2023-12-16 01:06:37,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 974 transitions. [2023-12-16 01:06:37,469 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 974 transitions. Word has length 60 [2023-12-16 01:06:37,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:37,469 INFO L495 AbstractCegarLoop]: Abstraction has 698 states and 974 transitions. [2023-12-16 01:06:37,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 01:06:37,469 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 974 transitions. [2023-12-16 01:06:37,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 01:06:37,471 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:37,471 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:37,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 01:06:37,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:37,677 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:37,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:37,677 INFO L85 PathProgramCache]: Analyzing trace with hash 31656564, now seen corresponding path program 1 times [2023-12-16 01:06:37,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:37,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770136737] [2023-12-16 01:06:37,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:37,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-16 01:06:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 01:06:37,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:37,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770136737] [2023-12-16 01:06:37,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770136737] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:37,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249059416] [2023-12-16 01:06:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:37,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:37,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:37,782 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:06:37,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 01:06:37,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:37,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-16 01:06:37,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:06:38,047 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:38,047 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 01:06:38,097 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 01:06:38,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249059416] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 01:06:38,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-16 01:06:38,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 4] total 10 [2023-12-16 01:06:38,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911206184] [2023-12-16 01:06:38,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-16 01:06:38,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-16 01:06:38,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:38,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-16 01:06:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:06:38,099 INFO L87 Difference]: Start difference. First operand 698 states and 974 transitions. Second operand has 10 states, 10 states have (on average 13.4) internal successors, (134), 9 states have internal predecessors, (134), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-12-16 01:06:38,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:38,806 INFO L93 Difference]: Finished difference Result 1934 states and 2626 transitions. [2023-12-16 01:06:38,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-12-16 01:06:38,807 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 9 states have internal predecessors, (134), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 61 [2023-12-16 01:06:38,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:38,812 INFO L225 Difference]: With dead ends: 1934 [2023-12-16 01:06:38,812 INFO L226 Difference]: Without dead ends: 1536 [2023-12-16 01:06:38,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2023-12-16 01:06:38,814 INFO L413 NwaCegarLoop]: 318 mSDtfsCounter, 769 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:38,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1816 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:06:38,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2023-12-16 01:06:38,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1027. [2023-12-16 01:06:38,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1027 states, 900 states have (on average 1.3544444444444443) internal successors, (1219), 916 states have internal predecessors, (1219), 74 states have call successors, (74), 42 states have call predecessors, (74), 51 states have return successors, (105), 69 states have call predecessors, (105), 73 states have call successors, (105) [2023-12-16 01:06:38,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1027 states to 1027 states and 1398 transitions. [2023-12-16 01:06:38,859 INFO L78 Accepts]: Start accepts. Automaton has 1027 states and 1398 transitions. Word has length 61 [2023-12-16 01:06:38,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:38,859 INFO L495 AbstractCegarLoop]: Abstraction has 1027 states and 1398 transitions. [2023-12-16 01:06:38,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.4) internal successors, (134), 9 states have internal predecessors, (134), 7 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2023-12-16 01:06:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1027 states and 1398 transitions. [2023-12-16 01:06:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 01:06:38,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:38,862 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 01:06:38,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 01:06:39,067 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,SelfDestructingSolverStorable7 [2023-12-16 01:06:39,067 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:39,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:39,068 INFO L85 PathProgramCache]: Analyzing trace with hash 447226569, now seen corresponding path program 1 times [2023-12-16 01:06:39,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:39,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431591637] [2023-12-16 01:06:39,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-16 01:06:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-12-16 01:06:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,117 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-12-16 01:06:39,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:39,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431591637] [2023-12-16 01:06:39,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431591637] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:39,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:39,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 01:06:39,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382401300] [2023-12-16 01:06:39,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:39,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 01:06:39,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:39,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 01:06:39,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 01:06:39,119 INFO L87 Difference]: Start difference. First operand 1027 states and 1398 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 01:06:39,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:39,335 INFO L93 Difference]: Finished difference Result 1661 states and 2221 transitions. [2023-12-16 01:06:39,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 01:06:39,336 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2023-12-16 01:06:39,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:39,340 INFO L225 Difference]: With dead ends: 1661 [2023-12-16 01:06:39,340 INFO L226 Difference]: Without dead ends: 996 [2023-12-16 01:06:39,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:39,343 INFO L413 NwaCegarLoop]: 264 mSDtfsCounter, 556 mSDsluCounter, 257 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:39,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 521 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 01:06:39,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 996 states. [2023-12-16 01:06:39,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 996 to 919. [2023-12-16 01:06:39,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 919 states, 805 states have (on average 1.35527950310559) internal successors, (1091), 821 states have internal predecessors, (1091), 67 states have call successors, (67), 37 states have call predecessors, (67), 45 states have return successors, (94), 61 states have call predecessors, (94), 66 states have call successors, (94) [2023-12-16 01:06:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1252 transitions. [2023-12-16 01:06:39,374 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1252 transitions. Word has length 78 [2023-12-16 01:06:39,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:39,374 INFO L495 AbstractCegarLoop]: Abstraction has 919 states and 1252 transitions. [2023-12-16 01:06:39,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 01:06:39,375 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1252 transitions. [2023-12-16 01:06:39,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 01:06:39,377 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:39,377 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:39,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-16 01:06:39,378 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:39,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:39,378 INFO L85 PathProgramCache]: Analyzing trace with hash 48056276, now seen corresponding path program 1 times [2023-12-16 01:06:39,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:39,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462576498] [2023-12-16 01:06:39,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-12-16 01:06:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 01:06:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-12-16 01:06:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-12-16 01:06:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-12-16 01:06:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-12-16 01:06:39,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:39,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462576498] [2023-12-16 01:06:39,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462576498] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:06:39,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010944326] [2023-12-16 01:06:39,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:39,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:06:39,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:06:39,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 01:06:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:06:39,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:06:39,570 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 01:06:39,571 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:06:39,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010944326] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:39,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:06:39,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-16 01:06:39,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195648331] [2023-12-16 01:06:39,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:39,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:06:39,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:39,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:06:39,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:39,572 INFO L87 Difference]: Start difference. First operand 919 states and 1252 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 01:06:39,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:39,629 INFO L93 Difference]: Finished difference Result 1204 states and 1610 transitions. [2023-12-16 01:06:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:06:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 92 [2023-12-16 01:06:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:39,630 INFO L225 Difference]: With dead ends: 1204 [2023-12-16 01:06:39,630 INFO L226 Difference]: Without dead ends: 209 [2023-12-16 01:06:39,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:39,632 INFO L413 NwaCegarLoop]: 416 mSDtfsCounter, 55 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:39,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 776 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:06:39,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-12-16 01:06:39,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2023-12-16 01:06:39,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 182 states have (on average 1.598901098901099) internal successors, (291), 183 states have internal predecessors, (291), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 01:06:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 331 transitions. [2023-12-16 01:06:39,664 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 331 transitions. Word has length 92 [2023-12-16 01:06:39,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:39,664 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 331 transitions. [2023-12-16 01:06:39,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 01:06:39,665 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 331 transitions. [2023-12-16 01:06:39,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:39,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:39,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:39,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 01:06:39,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:06:39,870 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:39,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash -9347914, now seen corresponding path program 1 times [2023-12-16 01:06:39,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:39,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893421814] [2023-12-16 01:06:39,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:39,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:39,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:39,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:39,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:39,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893421814] [2023-12-16 01:06:39,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893421814] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:39,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:39,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 01:06:39,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908409139] [2023-12-16 01:06:39,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:39,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 01:06:39,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:39,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 01:06:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 01:06:39,949 INFO L87 Difference]: Start difference. First operand 209 states and 331 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:40,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:40,560 INFO L93 Difference]: Finished difference Result 480 states and 774 transitions. [2023-12-16 01:06:40,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 01:06:40,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:40,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:40,562 INFO L225 Difference]: With dead ends: 480 [2023-12-16 01:06:40,563 INFO L226 Difference]: Without dead ends: 279 [2023-12-16 01:06:40,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-16 01:06:40,564 INFO L413 NwaCegarLoop]: 183 mSDtfsCounter, 552 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 589 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:40,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 376 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 589 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:06:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2023-12-16 01:06:40,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 209. [2023-12-16 01:06:40,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 182 states have (on average 1.5934065934065933) internal successors, (290), 183 states have internal predecessors, (290), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-16 01:06:40,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 330 transitions. [2023-12-16 01:06:40,573 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 330 transitions. Word has length 101 [2023-12-16 01:06:40,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:40,574 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 330 transitions. [2023-12-16 01:06:40,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:40,574 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 330 transitions. [2023-12-16 01:06:40,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:40,574 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:40,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:40,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-16 01:06:40,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:40,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash 19152376, now seen corresponding path program 1 times [2023-12-16 01:06:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816513842] [2023-12-16 01:06:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:40,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:40,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:40,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:40,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816513842] [2023-12-16 01:06:40,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816513842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:40,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:40,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:06:40,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650622750] [2023-12-16 01:06:40,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:40,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:06:40,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:40,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:06:40,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:40,676 INFO L87 Difference]: Start difference. First operand 209 states and 330 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:41,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:41,800 INFO L93 Difference]: Finished difference Result 748 states and 1212 transitions. [2023-12-16 01:06:41,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 01:06:41,800 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:41,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:41,803 INFO L225 Difference]: With dead ends: 748 [2023-12-16 01:06:41,803 INFO L226 Difference]: Without dead ends: 552 [2023-12-16 01:06:41,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:41,804 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 823 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:41,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 631 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-16 01:06:41,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2023-12-16 01:06:41,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 413. [2023-12-16 01:06:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 364 states have (on average 1.6043956043956045) internal successors, (584), 366 states have internal predecessors, (584), 35 states have call successors, (35), 12 states have call predecessors, (35), 13 states have return successors, (38), 35 states have call predecessors, (38), 35 states have call successors, (38) [2023-12-16 01:06:41,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 657 transitions. [2023-12-16 01:06:41,825 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 657 transitions. Word has length 101 [2023-12-16 01:06:41,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:41,825 INFO L495 AbstractCegarLoop]: Abstraction has 413 states and 657 transitions. [2023-12-16 01:06:41,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 657 transitions. [2023-12-16 01:06:41,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:41,826 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:41,826 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:41,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-16 01:06:41,827 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:41,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:41,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1939422410, now seen corresponding path program 1 times [2023-12-16 01:06:41,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:41,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299992818] [2023-12-16 01:06:41,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:41,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:41,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:41,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:41,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:41,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299992818] [2023-12-16 01:06:41,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299992818] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:41,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:41,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:41,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026959369] [2023-12-16 01:06:41,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:41,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:41,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:41,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:41,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:41,980 INFO L87 Difference]: Start difference. First operand 413 states and 657 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:43,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:43,545 INFO L93 Difference]: Finished difference Result 1233 states and 1994 transitions. [2023-12-16 01:06:43,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:06:43,546 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:43,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:43,549 INFO L225 Difference]: With dead ends: 1233 [2023-12-16 01:06:43,549 INFO L226 Difference]: Without dead ends: 833 [2023-12-16 01:06:43,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:06:43,551 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 844 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 2094 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 2143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2094 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:43,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1186 Invalid, 2143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2094 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:06:43,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2023-12-16 01:06:43,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 602. [2023-12-16 01:06:43,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 531 states have (on average 1.5969868173258004) internal successors, (848), 534 states have internal predecessors, (848), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2023-12-16 01:06:43,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 953 transitions. [2023-12-16 01:06:43,590 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 953 transitions. Word has length 101 [2023-12-16 01:06:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:43,591 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 953 transitions. [2023-12-16 01:06:43,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 953 transitions. [2023-12-16 01:06:43,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:43,592 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:43,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:43,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-16 01:06:43,592 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:43,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:43,593 INFO L85 PathProgramCache]: Analyzing trace with hash -62939592, now seen corresponding path program 1 times [2023-12-16 01:06:43,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:43,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843528386] [2023-12-16 01:06:43,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:43,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:43,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:43,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:43,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:43,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:43,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843528386] [2023-12-16 01:06:43,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843528386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:43,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:43,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:43,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688669127] [2023-12-16 01:06:43,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:43,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:43,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:43,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:43,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:43,731 INFO L87 Difference]: Start difference. First operand 602 states and 953 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:44,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:44,486 INFO L93 Difference]: Finished difference Result 1428 states and 2308 transitions. [2023-12-16 01:06:44,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:44,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:44,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:44,490 INFO L225 Difference]: With dead ends: 1428 [2023-12-16 01:06:44,490 INFO L226 Difference]: Without dead ends: 839 [2023-12-16 01:06:44,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:44,492 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 613 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 1061 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 627 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:44,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [627 Valid, 602 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1061 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:06:44,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2023-12-16 01:06:44,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 602. [2023-12-16 01:06:44,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 531 states have (on average 1.591337099811676) internal successors, (845), 534 states have internal predecessors, (845), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2023-12-16 01:06:44,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 950 transitions. [2023-12-16 01:06:44,521 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 950 transitions. Word has length 101 [2023-12-16 01:06:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:44,521 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 950 transitions. [2023-12-16 01:06:44,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 950 transitions. [2023-12-16 01:06:44,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:44,522 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:44,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:44,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-16 01:06:44,522 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:44,522 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:44,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1261916602, now seen corresponding path program 1 times [2023-12-16 01:06:44,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:44,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084799665] [2023-12-16 01:06:44,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:44,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:44,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:44,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:44,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:44,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084799665] [2023-12-16 01:06:44,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084799665] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:44,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:44,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:44,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486637033] [2023-12-16 01:06:44,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:44,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:44,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:44,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:44,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:44,675 INFO L87 Difference]: Start difference. First operand 602 states and 950 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:45,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:45,364 INFO L93 Difference]: Finished difference Result 1424 states and 2291 transitions. [2023-12-16 01:06:45,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:45,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:45,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:45,368 INFO L225 Difference]: With dead ends: 1424 [2023-12-16 01:06:45,368 INFO L226 Difference]: Without dead ends: 835 [2023-12-16 01:06:45,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:45,370 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 697 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 938 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 938 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:45,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 505 Invalid, 1011 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 938 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:06:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2023-12-16 01:06:45,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 602. [2023-12-16 01:06:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 531 states have (on average 1.5856873822975517) internal successors, (842), 534 states have internal predecessors, (842), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2023-12-16 01:06:45,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 947 transitions. [2023-12-16 01:06:45,399 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 947 transitions. Word has length 101 [2023-12-16 01:06:45,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:45,399 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 947 transitions. [2023-12-16 01:06:45,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:45,399 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 947 transitions. [2023-12-16 01:06:45,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:45,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:45,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:45,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-16 01:06:45,400 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:45,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:45,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1466292744, now seen corresponding path program 1 times [2023-12-16 01:06:45,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:45,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019467157] [2023-12-16 01:06:45,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:45,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:45,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:45,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:45,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:45,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:45,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019467157] [2023-12-16 01:06:45,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019467157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:45,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:45,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:45,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690950682] [2023-12-16 01:06:45,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:45,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:45,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:45,513 INFO L87 Difference]: Start difference. First operand 602 states and 947 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:46,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:46,212 INFO L93 Difference]: Finished difference Result 1420 states and 2274 transitions. [2023-12-16 01:06:46,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:46,215 INFO L225 Difference]: With dead ends: 1420 [2023-12-16 01:06:46,215 INFO L226 Difference]: Without dead ends: 831 [2023-12-16 01:06:46,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:46,217 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 695 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:46,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 505 Invalid, 997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:06:46,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2023-12-16 01:06:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 602. [2023-12-16 01:06:46,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 531 states have (on average 1.5800376647834276) internal successors, (839), 534 states have internal predecessors, (839), 50 states have call successors, (50), 18 states have call predecessors, (50), 20 states have return successors, (55), 51 states have call predecessors, (55), 50 states have call successors, (55) [2023-12-16 01:06:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 944 transitions. [2023-12-16 01:06:46,245 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 944 transitions. Word has length 101 [2023-12-16 01:06:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:46,245 INFO L495 AbstractCegarLoop]: Abstraction has 602 states and 944 transitions. [2023-12-16 01:06:46,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 944 transitions. [2023-12-16 01:06:46,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:46,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:46,246 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:46,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-16 01:06:46,247 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:46,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1770836474, now seen corresponding path program 1 times [2023-12-16 01:06:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278271214] [2023-12-16 01:06:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:46,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:46,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:46,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:46,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:46,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:46,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:46,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278271214] [2023-12-16 01:06:46,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278271214] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:46,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:46,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:46,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076410919] [2023-12-16 01:06:46,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:46,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:46,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:46,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:46,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:46,385 INFO L87 Difference]: Start difference. First operand 602 states and 944 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:47,922 INFO L93 Difference]: Finished difference Result 1930 states and 3068 transitions. [2023-12-16 01:06:47,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 01:06:47,923 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:47,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:47,928 INFO L225 Difference]: With dead ends: 1930 [2023-12-16 01:06:47,928 INFO L226 Difference]: Without dead ends: 1341 [2023-12-16 01:06:47,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-16 01:06:47,930 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 817 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:47,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 1184 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:06:47,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2023-12-16 01:06:47,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 993. [2023-12-16 01:06:47,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 993 states, 878 states have (on average 1.571753986332574) internal successors, (1380), 883 states have internal predecessors, (1380), 80 states have call successors, (80), 30 states have call predecessors, (80), 34 states have return successors, (93), 83 states have call predecessors, (93), 80 states have call successors, (93) [2023-12-16 01:06:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 993 states to 993 states and 1553 transitions. [2023-12-16 01:06:47,998 INFO L78 Accepts]: Start accepts. Automaton has 993 states and 1553 transitions. Word has length 101 [2023-12-16 01:06:47,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:47,998 INFO L495 AbstractCegarLoop]: Abstraction has 993 states and 1553 transitions. [2023-12-16 01:06:47,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:47,998 INFO L276 IsEmpty]: Start isEmpty. Operand 993 states and 1553 transitions. [2023-12-16 01:06:47,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:47,999 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:47,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:48,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-16 01:06:48,000 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:48,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:48,001 INFO L85 PathProgramCache]: Analyzing trace with hash 628334008, now seen corresponding path program 1 times [2023-12-16 01:06:48,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:48,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755001544] [2023-12-16 01:06:48,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:48,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:48,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:48,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:48,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:48,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755001544] [2023-12-16 01:06:48,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755001544] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:48,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:48,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:48,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312277544] [2023-12-16 01:06:48,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:48,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:48,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:48,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:48,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:48,119 INFO L87 Difference]: Start difference. First operand 993 states and 1553 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:50,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:50,140 INFO L93 Difference]: Finished difference Result 3621 states and 5739 transitions. [2023-12-16 01:06:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:06:50,140 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:50,150 INFO L225 Difference]: With dead ends: 3621 [2023-12-16 01:06:50,150 INFO L226 Difference]: Without dead ends: 2641 [2023-12-16 01:06:50,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:06:50,155 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 872 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:50,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 1177 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:06:50,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2023-12-16 01:06:50,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 1762. [2023-12-16 01:06:50,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1762 states, 1563 states have (on average 1.564939219449776) internal successors, (2446), 1572 states have internal predecessors, (2446), 136 states have call successors, (136), 54 states have call predecessors, (136), 62 states have return successors, (171), 143 states have call predecessors, (171), 136 states have call successors, (171) [2023-12-16 01:06:50,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2753 transitions. [2023-12-16 01:06:50,249 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2753 transitions. Word has length 101 [2023-12-16 01:06:50,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:50,250 INFO L495 AbstractCegarLoop]: Abstraction has 1762 states and 2753 transitions. [2023-12-16 01:06:50,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:50,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2753 transitions. [2023-12-16 01:06:50,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:50,251 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:50,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:50,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-16 01:06:50,251 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:50,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:50,252 INFO L85 PathProgramCache]: Analyzing trace with hash 868573754, now seen corresponding path program 1 times [2023-12-16 01:06:50,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:50,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29643976] [2023-12-16 01:06:50,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:50,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:50,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:50,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:50,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:50,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29643976] [2023-12-16 01:06:50,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29643976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:50,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:50,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:50,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824537503] [2023-12-16 01:06:50,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:50,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:50,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:50,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:50,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:50,382 INFO L87 Difference]: Start difference. First operand 1762 states and 2753 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:52,043 INFO L93 Difference]: Finished difference Result 6564 states and 10393 transitions. [2023-12-16 01:06:52,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:06:52,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:52,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:52,067 INFO L225 Difference]: With dead ends: 6564 [2023-12-16 01:06:52,067 INFO L226 Difference]: Without dead ends: 4815 [2023-12-16 01:06:52,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:06:52,073 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1051 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 1729 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 1729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:52,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 820 Invalid, 1801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 1729 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-16 01:06:52,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4815 states. [2023-12-16 01:06:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4815 to 3259. [2023-12-16 01:06:52,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 2896 states have (on average 1.5607734806629834) internal successors, (4520), 2913 states have internal predecessors, (4520), 244 states have call successors, (244), 102 states have call predecessors, (244), 118 states have return successors, (341), 259 states have call predecessors, (341), 244 states have call successors, (341) [2023-12-16 01:06:52,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 5105 transitions. [2023-12-16 01:06:52,266 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 5105 transitions. Word has length 101 [2023-12-16 01:06:52,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:52,266 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 5105 transitions. [2023-12-16 01:06:52,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:52,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 5105 transitions. [2023-12-16 01:06:52,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:52,269 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:52,269 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:52,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-16 01:06:52,270 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:52,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1707607416, now seen corresponding path program 1 times [2023-12-16 01:06:52,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:52,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417764013] [2023-12-16 01:06:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:52,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:52,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:52,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:52,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:52,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:52,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417764013] [2023-12-16 01:06:52,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417764013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:52,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:52,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:52,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662282874] [2023-12-16 01:06:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:52,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:52,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:52,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:52,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:52,382 INFO L87 Difference]: Start difference. First operand 3259 states and 5105 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:53,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:53,151 INFO L93 Difference]: Finished difference Result 7468 states and 11865 transitions. [2023-12-16 01:06:53,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:53,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:53,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:53,164 INFO L225 Difference]: With dead ends: 7468 [2023-12-16 01:06:53,164 INFO L226 Difference]: Without dead ends: 4222 [2023-12-16 01:06:53,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:53,170 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 700 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:53,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 504 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:06:53,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4222 states. [2023-12-16 01:06:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4222 to 3259. [2023-12-16 01:06:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3259 states, 2896 states have (on average 1.554903314917127) internal successors, (4503), 2913 states have internal predecessors, (4503), 244 states have call successors, (244), 102 states have call predecessors, (244), 118 states have return successors, (341), 259 states have call predecessors, (341), 244 states have call successors, (341) [2023-12-16 01:06:53,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3259 states to 3259 states and 5088 transitions. [2023-12-16 01:06:53,326 INFO L78 Accepts]: Start accepts. Automaton has 3259 states and 5088 transitions. Word has length 101 [2023-12-16 01:06:53,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:53,326 INFO L495 AbstractCegarLoop]: Abstraction has 3259 states and 5088 transitions. [2023-12-16 01:06:53,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:53,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3259 states and 5088 transitions. [2023-12-16 01:06:53,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:53,329 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:53,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:53,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-12-16 01:06:53,329 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:53,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:53,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1734673018, now seen corresponding path program 1 times [2023-12-16 01:06:53,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:53,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492608985] [2023-12-16 01:06:53,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:53,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:53,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:53,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:53,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:53,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:53,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:53,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:53,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:53,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:53,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:53,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:53,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492608985] [2023-12-16 01:06:53,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492608985] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:53,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:53,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:53,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259769203] [2023-12-16 01:06:53,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:53,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:53,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:53,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:53,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:53,433 INFO L87 Difference]: Start difference. First operand 3259 states and 5088 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:55,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:55,159 INFO L93 Difference]: Finished difference Result 11799 states and 18643 transitions. [2023-12-16 01:06:55,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:06:55,159 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:55,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:55,197 INFO L225 Difference]: With dead ends: 11799 [2023-12-16 01:06:55,197 INFO L226 Difference]: Without dead ends: 8553 [2023-12-16 01:06:55,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:06:55,208 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 893 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1905 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 1905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:55,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 1177 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 1905 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-16 01:06:55,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8553 states. [2023-12-16 01:06:55,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8553 to 6326. [2023-12-16 01:06:55,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6326 states, 5643 states have (on average 1.553251816409711) internal successors, (8765), 5676 states have internal predecessors, (8765), 452 states have call successors, (452), 198 states have call predecessors, (452), 230 states have return successors, (727), 483 states have call predecessors, (727), 452 states have call successors, (727) [2023-12-16 01:06:55,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6326 states to 6326 states and 9944 transitions. [2023-12-16 01:06:55,572 INFO L78 Accepts]: Start accepts. Automaton has 6326 states and 9944 transitions. Word has length 101 [2023-12-16 01:06:55,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:55,572 INFO L495 AbstractCegarLoop]: Abstraction has 6326 states and 9944 transitions. [2023-12-16 01:06:55,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:55,572 INFO L276 IsEmpty]: Start isEmpty. Operand 6326 states and 9944 transitions. [2023-12-16 01:06:55,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:55,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:55,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:55,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-16 01:06:55,576 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:55,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:55,577 INFO L85 PathProgramCache]: Analyzing trace with hash -826189828, now seen corresponding path program 1 times [2023-12-16 01:06:55,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:55,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005373108] [2023-12-16 01:06:55,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:55,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:55,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:55,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:55,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:55,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:55,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005373108] [2023-12-16 01:06:55,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005373108] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:55,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:55,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:55,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124833683] [2023-12-16 01:06:55,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:55,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:55,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:55,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:55,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:55,681 INFO L87 Difference]: Start difference. First operand 6326 states and 9944 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:56,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:56,521 INFO L93 Difference]: Finished difference Result 14300 states and 22764 transitions. [2023-12-16 01:06:56,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 01:06:56,521 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:56,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:56,544 INFO L225 Difference]: With dead ends: 14300 [2023-12-16 01:06:56,545 INFO L226 Difference]: Without dead ends: 7987 [2023-12-16 01:06:56,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-16 01:06:56,562 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 697 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:56,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 504 Invalid, 929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 01:06:56,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7987 states. [2023-12-16 01:06:56,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7987 to 6326. [2023-12-16 01:06:56,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6326 states, 5643 states have (on average 1.547403863193337) internal successors, (8732), 5676 states have internal predecessors, (8732), 452 states have call successors, (452), 198 states have call predecessors, (452), 230 states have return successors, (727), 483 states have call predecessors, (727), 452 states have call successors, (727) [2023-12-16 01:06:56,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6326 states to 6326 states and 9911 transitions. [2023-12-16 01:06:56,924 INFO L78 Accepts]: Start accepts. Automaton has 6326 states and 9911 transitions. Word has length 101 [2023-12-16 01:06:56,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:56,924 INFO L495 AbstractCegarLoop]: Abstraction has 6326 states and 9911 transitions. [2023-12-16 01:06:56,925 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:56,925 INFO L276 IsEmpty]: Start isEmpty. Operand 6326 states and 9911 transitions. [2023-12-16 01:06:56,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:56,929 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:56,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:56,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-16 01:06:56,929 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:56,930 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:56,930 INFO L85 PathProgramCache]: Analyzing trace with hash 61033018, now seen corresponding path program 1 times [2023-12-16 01:06:56,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:56,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611625550] [2023-12-16 01:06:56,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:56,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:56,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:56,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:56,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:57,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:57,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:57,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611625550] [2023-12-16 01:06:57,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611625550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:57,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:57,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:06:57,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639566022] [2023-12-16 01:06:57,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:57,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:06:57,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:57,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:06:57,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:06:57,047 INFO L87 Difference]: Start difference. First operand 6326 states and 9911 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:58,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:06:58,902 INFO L93 Difference]: Finished difference Result 22174 states and 35109 transitions. [2023-12-16 01:06:58,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-16 01:06:58,902 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:06:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:06:58,940 INFO L225 Difference]: With dead ends: 22174 [2023-12-16 01:06:58,941 INFO L226 Difference]: Without dead ends: 15861 [2023-12-16 01:06:58,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-16 01:06:58,954 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 812 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 832 SdHoareTripleChecker+Valid, 1177 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:06:58,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [832 Valid, 1177 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-16 01:06:58,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15861 states. [2023-12-16 01:06:59,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15861 to 12488. [2023-12-16 01:06:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12488 states, 11181 states have (on average 1.5454789374832305) internal successors, (17280), 11246 states have internal predecessors, (17280), 852 states have call successors, (852), 390 states have call predecessors, (852), 454 states have return successors, (1645), 915 states have call predecessors, (1645), 852 states have call successors, (1645) [2023-12-16 01:06:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12488 states to 12488 states and 19777 transitions. [2023-12-16 01:06:59,698 INFO L78 Accepts]: Start accepts. Automaton has 12488 states and 19777 transitions. Word has length 101 [2023-12-16 01:06:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:06:59,698 INFO L495 AbstractCegarLoop]: Abstraction has 12488 states and 19777 transitions. [2023-12-16 01:06:59,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:06:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 12488 states and 19777 transitions. [2023-12-16 01:06:59,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:06:59,706 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:06:59,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:06:59,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-16 01:06:59,707 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:06:59,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:06:59,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1850009540, now seen corresponding path program 1 times [2023-12-16 01:06:59,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:06:59,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071071475] [2023-12-16 01:06:59,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:06:59,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:06:59,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:59,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:06:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:06:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:59,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:06:59,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:59,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:06:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:06:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:06:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:06:59,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:06:59,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071071475] [2023-12-16 01:06:59,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071071475] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:06:59,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:06:59,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-16 01:06:59,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213566840] [2023-12-16 01:06:59,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:06:59,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 01:06:59,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:06:59,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 01:06:59,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-16 01:06:59,824 INFO L87 Difference]: Start difference. First operand 12488 states and 19777 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:01,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:01,184 INFO L93 Difference]: Finished difference Result 30075 states and 47821 transitions. [2023-12-16 01:07:01,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 01:07:01,185 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:07:01,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:01,246 INFO L225 Difference]: With dead ends: 30075 [2023-12-16 01:07:01,246 INFO L226 Difference]: Without dead ends: 17601 [2023-12-16 01:07:01,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-16 01:07:01,278 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 374 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 1054 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:01,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 678 Invalid, 1054 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1012 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 01:07:01,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17601 states. [2023-12-16 01:07:01,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17601 to 12618. [2023-12-16 01:07:01,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12618 states, 11311 states have (on average 1.5392096189549995) internal successors, (17410), 11376 states have internal predecessors, (17410), 852 states have call successors, (852), 390 states have call predecessors, (852), 454 states have return successors, (1645), 915 states have call predecessors, (1645), 852 states have call successors, (1645) [2023-12-16 01:07:01,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12618 states to 12618 states and 19907 transitions. [2023-12-16 01:07:01,956 INFO L78 Accepts]: Start accepts. Automaton has 12618 states and 19907 transitions. Word has length 101 [2023-12-16 01:07:01,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:01,956 INFO L495 AbstractCegarLoop]: Abstraction has 12618 states and 19907 transitions. [2023-12-16 01:07:01,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:01,956 INFO L276 IsEmpty]: Start isEmpty. Operand 12618 states and 19907 transitions. [2023-12-16 01:07:01,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-16 01:07:01,964 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:01,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:01,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-16 01:07:01,965 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:01,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:01,965 INFO L85 PathProgramCache]: Analyzing trace with hash 758777918, now seen corresponding path program 1 times [2023-12-16 01:07:01,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:01,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291199859] [2023-12-16 01:07:01,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:01,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:02,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:02,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:07:02,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:02,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:07:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:02,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:07:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:02,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:07:02,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 01:07:02,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:02,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291199859] [2023-12-16 01:07:02,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291199859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:02,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 01:07:02,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-16 01:07:02,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908122188] [2023-12-16 01:07:02,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:02,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 01:07:02,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:02,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 01:07:02,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:02,104 INFO L87 Difference]: Start difference. First operand 12618 states and 19907 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:05,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:05,766 INFO L93 Difference]: Finished difference Result 57637 states and 92903 transitions. [2023-12-16 01:07:05,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 01:07:05,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 101 [2023-12-16 01:07:05,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:05,884 INFO L225 Difference]: With dead ends: 57637 [2023-12-16 01:07:05,884 INFO L226 Difference]: Without dead ends: 45033 [2023-12-16 01:07:05,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2023-12-16 01:07:05,908 INFO L413 NwaCegarLoop]: 320 mSDtfsCounter, 2180 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2201 SdHoareTripleChecker+Valid, 1009 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:05,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2201 Valid, 1009 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-16 01:07:05,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45033 states. [2023-12-16 01:07:07,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45033 to 36903. [2023-12-16 01:07:07,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36903 states, 33036 states have (on average 1.5309662186705413) internal successors, (50577), 33328 states have internal predecessors, (50577), 2498 states have call successors, (2498), 1176 states have call predecessors, (2498), 1368 states have return successors, (5226), 2462 states have call predecessors, (5226), 2498 states have call successors, (5226) [2023-12-16 01:07:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36903 states to 36903 states and 58301 transitions. [2023-12-16 01:07:07,691 INFO L78 Accepts]: Start accepts. Automaton has 36903 states and 58301 transitions. Word has length 101 [2023-12-16 01:07:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:07,691 INFO L495 AbstractCegarLoop]: Abstraction has 36903 states and 58301 transitions. [2023-12-16 01:07:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 01:07:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 36903 states and 58301 transitions. [2023-12-16 01:07:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 01:07:07,960 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:07,960 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:07,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-12-16 01:07:07,960 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:07,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2053074634, now seen corresponding path program 1 times [2023-12-16 01:07:07,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:07,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572065692] [2023-12-16 01:07:07,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:07,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:07:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:07:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:07:08,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:07:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 01:07:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-16 01:07:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 01:07:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,098 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-12-16 01:07:08,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:08,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572065692] [2023-12-16 01:07:08,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572065692] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:07:08,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997341932] [2023-12-16 01:07:08,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:08,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:07:08,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:07:08,101 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:07:08,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 01:07:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:08,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:07:08,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:07:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-16 01:07:08,319 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:07:08,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997341932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:08,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:07:08,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-16 01:07:08,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285552614] [2023-12-16 01:07:08,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:08,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:07:08,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:08,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:07:08,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:08,321 INFO L87 Difference]: Start difference. First operand 36903 states and 58301 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:07:11,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:11,609 INFO L93 Difference]: Finished difference Result 109896 states and 175258 transitions. [2023-12-16 01:07:11,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:07:11,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 163 [2023-12-16 01:07:11,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:11,812 INFO L225 Difference]: With dead ends: 109896 [2023-12-16 01:07:11,812 INFO L226 Difference]: Without dead ends: 73007 [2023-12-16 01:07:11,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:11,977 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 273 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:11,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 566 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 01:07:12,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73007 states. [2023-12-16 01:07:15,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73007 to 72809. [2023-12-16 01:07:15,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72809 states, 65276 states have (on average 1.5283411973772902) internal successors, (99764), 65859 states have internal predecessors, (99764), 4796 states have call successors, (4796), 2352 states have call predecessors, (4796), 2736 states have return successors, (10090), 4661 states have call predecessors, (10090), 4796 states have call successors, (10090) [2023-12-16 01:07:15,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72809 states to 72809 states and 114650 transitions. [2023-12-16 01:07:15,682 INFO L78 Accepts]: Start accepts. Automaton has 72809 states and 114650 transitions. Word has length 163 [2023-12-16 01:07:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 01:07:15,683 INFO L495 AbstractCegarLoop]: Abstraction has 72809 states and 114650 transitions. [2023-12-16 01:07:15,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:07:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 72809 states and 114650 transitions. [2023-12-16 01:07:15,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2023-12-16 01:07:15,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 01:07:15,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 01:07:16,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 01:07:16,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-12-16 01:07:16,201 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, error1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 01:07:16,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 01:07:16,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1087237674, now seen corresponding path program 1 times [2023-12-16 01:07:16,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 01:07:16,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550089471] [2023-12-16 01:07:16,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:16,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 01:07:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 01:07:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 01:07:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-16 01:07:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-16 01:07:16,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-16 01:07:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-16 01:07:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-16 01:07:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-16 01:07:16,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,320 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-12-16 01:07:16,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 01:07:16,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550089471] [2023-12-16 01:07:16,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550089471] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 01:07:16,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474139301] [2023-12-16 01:07:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 01:07:16,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 01:07:16,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 01:07:16,322 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 01:07:16,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 01:07:16,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 01:07:16,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 01:07:16,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 01:07:16,514 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-16 01:07:16,515 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 01:07:16,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474139301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 01:07:16,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 01:07:16,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-16 01:07:16,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537615450] [2023-12-16 01:07:16,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 01:07:16,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 01:07:16,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 01:07:16,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 01:07:16,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:16,516 INFO L87 Difference]: Start difference. First operand 72809 states and 114650 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 01:07:23,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 01:07:23,187 INFO L93 Difference]: Finished difference Result 217214 states and 345435 transitions. [2023-12-16 01:07:23,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 01:07:23,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 163 [2023-12-16 01:07:23,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 01:07:23,667 INFO L225 Difference]: With dead ends: 217214 [2023-12-16 01:07:23,667 INFO L226 Difference]: Without dead ends: 144419 [2023-12-16 01:07:23,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-16 01:07:23,908 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 253 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 566 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 01:07:23,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 566 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 01:07:24,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144419 states. Received shutdown request... [2023-12-16 01:07:28,938 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:07:28,940 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 01:07:29,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 [2023-12-16 01:07:29,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 01:07:30,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144419 to 144025. [2023-12-16 01:07:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144025 states, 129164 states have (on average 1.5248676101700165) internal successors, (196958), 130329 states have internal predecessors, (196958), 9388 states have call successors, (9388), 4704 states have call predecessors, (9388), 5472 states have return successors, (19811), 9055 states have call predecessors, (19811), 9388 states have call successors, (19811) [2023-12-16 01:07:30,615 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 01:07:30,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-12-16 01:07:30,616 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 01:07:30,617 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 01:07:30,620 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-16 01:07:30,622 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 01:07:30,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 01:07:30 BoogieIcfgContainer [2023-12-16 01:07:30,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 01:07:30,623 INFO L158 Benchmark]: Toolchain (without parser) took 57793.79ms. Allocated memory was 259.0MB in the beginning and 6.3GB in the end (delta: 6.0GB). Free memory was 204.0MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-12-16 01:07:30,624 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory was 142.1MB in the beginning and 141.9MB in the end (delta: 156.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 01:07:30,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.82ms. Allocated memory is still 259.0MB. Free memory was 203.5MB in the beginning and 182.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. [2023-12-16 01:07:30,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.46ms. Allocated memory is still 259.0MB. Free memory was 182.5MB in the beginning and 178.9MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 01:07:30,624 INFO L158 Benchmark]: Boogie Preprocessor took 69.61ms. Allocated memory is still 259.0MB. Free memory was 178.9MB in the beginning and 174.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 01:07:30,626 INFO L158 Benchmark]: RCFGBuilder took 762.29ms. Allocated memory is still 259.0MB. Free memory was 174.1MB in the beginning and 211.1MB in the end (delta: -36.9MB). Peak memory consumption was 44.9MB. Max. memory is 8.0GB. [2023-12-16 01:07:30,626 INFO L158 Benchmark]: TraceAbstraction took 56545.54ms. Allocated memory was 259.0MB in the beginning and 6.3GB in the end (delta: 6.0GB). Free memory was 210.5MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 01:07:30,634 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 195.0MB. Free memory was 142.1MB in the beginning and 141.9MB in the end (delta: 156.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 339.82ms. Allocated memory is still 259.0MB. Free memory was 203.5MB in the beginning and 182.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 65.46ms. Allocated memory is still 259.0MB. Free memory was 182.5MB in the beginning and 178.9MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 69.61ms. Allocated memory is still 259.0MB. Free memory was 178.9MB in the beginning and 174.1MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 762.29ms. Allocated memory is still 259.0MB. Free memory was 174.1MB in the beginning and 211.1MB in the end (delta: -36.9MB). Peak memory consumption was 44.9MB. Max. memory is 8.0GB. * TraceAbstraction took 56545.54ms. Allocated memory was 259.0MB in the beginning and 6.3GB in the end (delta: 6.0GB). Free memory was 210.5MB in the beginning and 5.1GB in the end (delta: -4.9GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. * 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 - TimeoutResultAtElement [Line: 390]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 390). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 27). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 273 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 56.5s, OverallIterations: 27, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.6s, AutomataDifference: 35.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17857 SdHoareTripleChecker+Valid, 15.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17524 mSDsluCounter, 20517 SdHoareTripleChecker+Invalid, 13.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13737 mSDsCounter, 1486 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25618 IncrementalHoareTripleChecker+Invalid, 27104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1486 mSolverCounterUnsat, 6780 mSDtfsCounter, 25618 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1216 GetRequests, 974 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72809occurred in iteration=26, InterpolantAutomatonStates: 242, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 26379 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2958 NumberOfCodeBlocks, 2958 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 3045 ConstructedInterpolants, 0 QuantifiedInterpolants, 7555 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2478 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 34 InterpolantComputations, 26 PerfectInterpolantSequences, 366/463 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown