/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.10.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-18 22:19:37,226 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-18 22:19:37,313 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-18 22:19:37,318 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-18 22:19:37,319 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-18 22:19:37,345 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-18 22:19:37,346 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-18 22:19:37,346 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-18 22:19:37,347 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-18 22:19:37,350 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-18 22:19:37,351 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-18 22:19:37,351 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-18 22:19:37,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-18 22:19:37,353 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-18 22:19:37,354 INFO L153 SettingsManager]: * Use SBE=true [2023-12-18 22:19:37,354 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-18 22:19:37,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-18 22:19:37,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-18 22:19:37,354 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-18 22:19:37,356 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-18 22:19:37,356 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-18 22:19:37,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-18 22:19:37,357 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-18 22:19:37,357 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-18 22:19:37,357 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-18 22:19:37,357 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-18 22:19:37,357 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-18 22:19:37,358 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-18 22:19:37,358 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-18 22:19:37,358 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-18 22:19:37,359 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-18 22:19:37,359 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-18 22:19:37,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:19:37,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-18 22:19:37,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-18 22:19:37,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-18 22:19:37,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-18 22:19:37,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-18 22:19:37,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-18 22:19:37,361 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-18 22:19:37,361 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-18 22:19:37,361 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-18 22:19:37,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-18 22:19:37,362 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-18 22:19:37,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-18 22:19:37,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-18 22:19:37,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-18 22:19:37,614 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-18 22:19:37,614 INFO L274 PluginConnector]: CDTParser initialized [2023-12-18 22:19:37,615 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label44+token_ring.10.cil-2.c [2023-12-18 22:19:38,828 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-18 22:19:39,463 INFO L384 CDTParser]: Found 1 translation units. [2023-12-18 22:19:39,464 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label44+token_ring.10.cil-2.c [2023-12-18 22:19:39,529 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44bcdc644/e068c91f36e540a89e9063a9182159ec/FLAGf2f7c18ac [2023-12-18 22:19:39,555 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44bcdc644/e068c91f36e540a89e9063a9182159ec [2023-12-18 22:19:39,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-18 22:19:39,559 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-18 22:19:39,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-18 22:19:39,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-18 22:19:39,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-18 22:19:39,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:19:39" (1/1) ... [2023-12-18 22:19:39,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5eb31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:39, skipping insertion in model container [2023-12-18 22:19:39,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 10:19:39" (1/1) ... [2023-12-18 22:19:39,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-18 22:19:41,451 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/Problem05_label44+token_ring.10.cil-2.c[377340,377353] [2023-12-18 22:19:41,481 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/Problem05_label44+token_ring.10.cil-2.c[383339,383352] [2023-12-18 22:19:41,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:19:41,775 INFO L202 MainTranslator]: Completed pre-run [2023-12-18 22:19:42,548 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/Problem05_label44+token_ring.10.cil-2.c[377340,377353] [2023-12-18 22:19:42,557 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/Problem05_label44+token_ring.10.cil-2.c[383339,383352] [2023-12-18 22:19:42,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-18 22:19:42,691 INFO L206 MainTranslator]: Completed translation [2023-12-18 22:19:42,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42 WrapperNode [2023-12-18 22:19:42,692 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-18 22:19:42,693 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-18 22:19:42,693 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-18 22:19:42,694 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-18 22:19:42,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:42,785 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,084 INFO L138 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13113 [2023-12-18 22:19:43,085 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-18 22:19:43,086 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-18 22:19:43,086 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-18 22:19:43,086 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-18 22:19:43,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,370 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]. [2023-12-18 22:19:43,370 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,371 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,762 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-18 22:19:43,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-18 22:19:43,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-18 22:19:43,880 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-18 22:19:43,880 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (1/1) ... [2023-12-18 22:19:43,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-18 22:19:43,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-18 22:19:43,958 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) [2023-12-18 22:19:44,024 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 [2023-12-18 22:19:44,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-18 22:19:44,059 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-18 22:19:44,059 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-18 22:19:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-18 22:19:44,060 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-18 22:19:44,060 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-18 22:19:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-18 22:19:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-18 22:19:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-18 22:19:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-18 22:19:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-18 22:19:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-18 22:19:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-18 22:19:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-18 22:19:44,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-18 22:19:44,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-18 22:19:44,195 INFO L241 CfgBuilder]: Building ICFG [2023-12-18 22:19:44,199 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-18 22:19:51,099 INFO L282 CfgBuilder]: Performing block encoding [2023-12-18 22:19:51,248 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-18 22:19:51,248 INFO L309 CfgBuilder]: Removed 14 assume(true) statements. [2023-12-18 22:19:51,248 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:19:51 BoogieIcfgContainer [2023-12-18 22:19:51,249 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-18 22:19:51,251 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-18 22:19:51,251 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-18 22:19:51,255 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-18 22:19:51,256 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 10:19:39" (1/3) ... [2023-12-18 22:19:51,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249ea0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:19:51, skipping insertion in model container [2023-12-18 22:19:51,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 10:19:42" (2/3) ... [2023-12-18 22:19:51,257 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249ea0bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 10:19:51, skipping insertion in model container [2023-12-18 22:19:51,257 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 10:19:51" (3/3) ... [2023-12-18 22:19:51,259 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.10.cil-2.c [2023-12-18 22:19:51,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-18 22:19:51,276 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-18 22:19:51,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-18 22:19:51,380 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;@14b4353, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-18 22:19:51,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-18 22:19:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 2425 states, 2392 states have (on average 1.8775083612040133) internal successors, (4491), 2395 states have internal predecessors, (4491), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-18 22:19:51,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:19:51,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:19:51,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:19:51,422 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:19:51,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:19:51,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1401539103, now seen corresponding path program 1 times [2023-12-18 22:19:51,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:19:51,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152175971] [2023-12-18 22:19:51,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:19:51,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:19:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:51,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:19:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:51,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:19:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:51,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:19:51,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:52,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:19:52,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:52,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:19:52,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:52,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:19:52,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:19:52,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152175971] [2023-12-18 22:19:52,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152175971] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:19:52,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:19:52,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-18 22:19:52,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841174318] [2023-12-18 22:19:52,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:19:52,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-18 22:19:52,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:19:52,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-18 22:19:52,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-18 22:19:52,120 INFO L87 Difference]: Start difference. First operand has 2425 states, 2392 states have (on average 1.8775083612040133) internal successors, (4491), 2395 states have internal predecessors, (4491), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 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) [2023-12-18 22:19:53,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:19:53,947 INFO L93 Difference]: Finished difference Result 4952 states and 9258 transitions. [2023-12-18 22:19:53,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-18 22:19:53,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 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 141 [2023-12-18 22:19:53,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:19:53,977 INFO L225 Difference]: With dead ends: 4952 [2023-12-18 22:19:53,977 INFO L226 Difference]: Without dead ends: 2531 [2023-12-18 22:19:53,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-18 22:19:53,992 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 837 mSDsluCounter, 12160 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 859 SdHoareTripleChecker+Valid, 16379 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:19:53,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [859 Valid, 16379 Invalid, 963 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:19:54,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2531 states. [2023-12-18 22:19:54,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2531 to 2421. [2023-12-18 22:19:54,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2389 states have (on average 1.8396818752616158) internal successors, (4395), 2391 states have internal predecessors, (4395), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-18 22:19:54,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 4443 transitions. [2023-12-18 22:19:54,152 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 4443 transitions. Word has length 141 [2023-12-18 22:19:54,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:19:54,153 INFO L495 AbstractCegarLoop]: Abstraction has 2421 states and 4443 transitions. [2023-12-18 22:19:54,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.2) internal successors, (131), 3 states have internal predecessors, (131), 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) [2023-12-18 22:19:54,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 4443 transitions. [2023-12-18 22:19:54,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:19:54,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:19:54,165 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:19:54,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-18 22:19:54,165 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:19:54,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:19:54,166 INFO L85 PathProgramCache]: Analyzing trace with hash 726378977, now seen corresponding path program 1 times [2023-12-18 22:19:54,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:19:54,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840665320] [2023-12-18 22:19:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:19:54,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:19:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:54,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:19:54,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:54,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:19:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:54,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:19:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:54,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:19:54,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:54,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:19:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:19:54,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:19:54,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840665320] [2023-12-18 22:19:54,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840665320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:19:54,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:19:54,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:19:54,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89866426] [2023-12-18 22:19:54,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:19:54,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:19:54,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:19:54,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:19:54,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:19:54,531 INFO L87 Difference]: Start difference. First operand 2421 states and 4443 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:19:58,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:19:58,325 INFO L93 Difference]: Finished difference Result 3245 states and 5826 transitions. [2023-12-18 22:19:58,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:19:58,326 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:19:58,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:19:58,343 INFO L225 Difference]: With dead ends: 3245 [2023-12-18 22:19:58,344 INFO L226 Difference]: Without dead ends: 2961 [2023-12-18 22:19:58,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:19:58,347 INFO L413 NwaCegarLoop]: 4363 mSDtfsCounter, 5163 mSDsluCounter, 17153 mSDsCounter, 0 mSdLazyCounter, 3302 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5180 SdHoareTripleChecker+Valid, 21516 SdHoareTripleChecker+Invalid, 3364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 3302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-12-18 22:19:58,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5180 Valid, 21516 Invalid, 3364 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 3302 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-12-18 22:19:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2961 states. [2023-12-18 22:19:58,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2961 to 2724. [2023-12-18 22:19:58,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2724 states, 2663 states have (on average 1.819752159218926) internal successors, (4846), 2667 states have internal predecessors, (4846), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2023-12-18 22:19:58,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2724 states to 2724 states and 4943 transitions. [2023-12-18 22:19:58,441 INFO L78 Accepts]: Start accepts. Automaton has 2724 states and 4943 transitions. Word has length 141 [2023-12-18 22:19:58,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:19:58,442 INFO L495 AbstractCegarLoop]: Abstraction has 2724 states and 4943 transitions. [2023-12-18 22:19:58,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:19:58,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2724 states and 4943 transitions. [2023-12-18 22:19:58,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:19:58,445 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:19:58,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:19:58,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-18 22:19:58,446 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:19:58,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:19:58,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1214426083, now seen corresponding path program 1 times [2023-12-18 22:19:58,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:19:58,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350104173] [2023-12-18 22:19:58,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:19:58,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:19:58,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:19:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:58,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:19:58,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:19:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:58,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:19:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:58,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:19:58,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:19:58,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:19:58,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:19:58,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350104173] [2023-12-18 22:19:58,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350104173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:19:58,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:19:58,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:19:58,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961355573] [2023-12-18 22:19:58,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:19:58,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:19:58,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:19:58,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:19:58,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:19:58,777 INFO L87 Difference]: Start difference. First operand 2724 states and 4943 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:02,036 INFO L93 Difference]: Finished difference Result 4288 states and 7546 transitions. [2023-12-18 22:20:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:20:02,037 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:02,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:02,055 INFO L225 Difference]: With dead ends: 4288 [2023-12-18 22:20:02,056 INFO L226 Difference]: Without dead ends: 3703 [2023-12-18 22:20:02,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:20:02,060 INFO L413 NwaCegarLoop]: 4311 mSDtfsCounter, 5204 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 2989 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5221 SdHoareTripleChecker+Valid, 21400 SdHoareTripleChecker+Invalid, 3059 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:02,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5221 Valid, 21400 Invalid, 3059 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 2989 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-18 22:20:02,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2023-12-18 22:20:02,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3278. [2023-12-18 22:20:02,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.7873617693522907) internal successors, (5657), 3171 states have internal predecessors, (5657), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-18 22:20:02,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5840 transitions. [2023-12-18 22:20:02,188 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5840 transitions. Word has length 141 [2023-12-18 22:20:02,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:02,189 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5840 transitions. [2023-12-18 22:20:02,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:02,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5840 transitions. [2023-12-18 22:20:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:02,191 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:02,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:02,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-18 22:20:02,192 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:02,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:02,193 INFO L85 PathProgramCache]: Analyzing trace with hash 121790881, now seen corresponding path program 1 times [2023-12-18 22:20:02,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:02,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657094071] [2023-12-18 22:20:02,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:02,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:02,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:02,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:02,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:02,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:02,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:02,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657094071] [2023-12-18 22:20:02,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657094071] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:02,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:02,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:02,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103850712] [2023-12-18 22:20:02,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:02,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:02,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:02,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:02,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:02,483 INFO L87 Difference]: Start difference. First operand 3278 states and 5840 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:03,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:03,860 INFO L93 Difference]: Finished difference Result 4857 states and 8484 transitions. [2023-12-18 22:20:03,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:20:03,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:03,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:03,881 INFO L225 Difference]: With dead ends: 4857 [2023-12-18 22:20:03,882 INFO L226 Difference]: Without dead ends: 3716 [2023-12-18 22:20:03,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:20:03,895 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 5000 mSDsluCounter, 12398 mSDsCounter, 0 mSdLazyCounter, 1475 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5018 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 1560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:03,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5018 Valid, 16573 Invalid, 1560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1475 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-18 22:20:03,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3716 states. [2023-12-18 22:20:04,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3716 to 3278. [2023-12-18 22:20:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.785781990521327) internal successors, (5652), 3171 states have internal predecessors, (5652), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-18 22:20:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5835 transitions. [2023-12-18 22:20:04,035 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5835 transitions. Word has length 141 [2023-12-18 22:20:04,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:04,036 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5835 transitions. [2023-12-18 22:20:04,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:04,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5835 transitions. [2023-12-18 22:20:04,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:04,039 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:04,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:04,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-18 22:20:04,039 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:04,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1160381405, now seen corresponding path program 1 times [2023-12-18 22:20:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:04,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641244348] [2023-12-18 22:20:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:04,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:04,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:04,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:04,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:04,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:04,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:04,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:04,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:04,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:04,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641244348] [2023-12-18 22:20:04,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641244348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:04,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:04,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:04,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077258208] [2023-12-18 22:20:04,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:04,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:04,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:04,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:04,275 INFO L87 Difference]: Start difference. First operand 3278 states and 5835 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:05,953 INFO L93 Difference]: Finished difference Result 4853 states and 8463 transitions. [2023-12-18 22:20:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:20:05,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:05,972 INFO L225 Difference]: With dead ends: 4853 [2023-12-18 22:20:05,972 INFO L226 Difference]: Without dead ends: 3712 [2023-12-18 22:20:05,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:20:05,979 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4998 mSDsluCounter, 12398 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5016 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:05,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5016 Valid, 16573 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1461 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:20:05,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3712 states. [2023-12-18 22:20:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3712 to 3278. [2023-12-18 22:20:06,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.7842022116903633) internal successors, (5647), 3171 states have internal predecessors, (5647), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-18 22:20:06,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5830 transitions. [2023-12-18 22:20:06,114 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5830 transitions. Word has length 141 [2023-12-18 22:20:06,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:06,114 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5830 transitions. [2023-12-18 22:20:06,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:06,115 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5830 transitions. [2023-12-18 22:20:06,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:06,118 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:06,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:06,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-18 22:20:06,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:06,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:06,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1292110177, now seen corresponding path program 1 times [2023-12-18 22:20:06,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:06,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932679384] [2023-12-18 22:20:06,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:06,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:06,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:06,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:06,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:06,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:06,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:06,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932679384] [2023-12-18 22:20:06,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932679384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:06,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:06,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:06,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048022579] [2023-12-18 22:20:06,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:06,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:06,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:06,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:06,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:06,387 INFO L87 Difference]: Start difference. First operand 3278 states and 5830 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:07,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:07,815 INFO L93 Difference]: Finished difference Result 4848 states and 8440 transitions. [2023-12-18 22:20:07,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:20:07,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:07,834 INFO L225 Difference]: With dead ends: 4848 [2023-12-18 22:20:07,835 INFO L226 Difference]: Without dead ends: 3707 [2023-12-18 22:20:07,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:20:07,842 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4996 mSDsluCounter, 12398 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5014 SdHoareTripleChecker+Valid, 16573 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:07,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5014 Valid, 16573 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-18 22:20:07,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-18 22:20:07,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3278. [2023-12-18 22:20:07,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3278 states, 3165 states have (on average 1.7826224328593996) internal successors, (5642), 3171 states have internal predecessors, (5642), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2023-12-18 22:20:07,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3278 states to 3278 states and 5825 transitions. [2023-12-18 22:20:07,955 INFO L78 Accepts]: Start accepts. Automaton has 3278 states and 5825 transitions. Word has length 141 [2023-12-18 22:20:07,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:07,955 INFO L495 AbstractCegarLoop]: Abstraction has 3278 states and 5825 transitions. [2023-12-18 22:20:07,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:07,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3278 states and 5825 transitions. [2023-12-18 22:20:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:07,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:07,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:07,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-18 22:20:07,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:07,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash -429892509, now seen corresponding path program 1 times [2023-12-18 22:20:07,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:07,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504170237] [2023-12-18 22:20:07,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:07,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:08,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:08,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:08,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:08,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:08,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:08,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:08,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:08,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504170237] [2023-12-18 22:20:08,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504170237] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:08,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:08,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:08,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817950231] [2023-12-18 22:20:08,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:08,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:08,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:08,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:08,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:08,202 INFO L87 Difference]: Start difference. First operand 3278 states and 5825 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:11,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:11,370 INFO L93 Difference]: Finished difference Result 6307 states and 10801 transitions. [2023-12-18 22:20:11,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:20:11,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:11,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:11,392 INFO L225 Difference]: With dead ends: 6307 [2023-12-18 22:20:11,393 INFO L226 Difference]: Without dead ends: 5168 [2023-12-18 22:20:11,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:20:11,399 INFO L413 NwaCegarLoop]: 4360 mSDtfsCounter, 5154 mSDsluCounter, 17153 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5171 SdHoareTripleChecker+Valid, 21513 SdHoareTripleChecker+Invalid, 3272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:11,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5171 Valid, 21513 Invalid, 3272 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [64 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-18 22:20:11,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5168 states. [2023-12-18 22:20:11,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5168 to 4397. [2023-12-18 22:20:11,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4180 states have (on average 1.7375598086124402) internal successors, (7263), 4190 states have internal predecessors, (7263), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2023-12-18 22:20:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 7624 transitions. [2023-12-18 22:20:11,562 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 7624 transitions. Word has length 141 [2023-12-18 22:20:11,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:11,563 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 7624 transitions. [2023-12-18 22:20:11,564 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:11,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 7624 transitions. [2023-12-18 22:20:11,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:11,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:11,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:11,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-18 22:20:11,568 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:11,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:11,568 INFO L85 PathProgramCache]: Analyzing trace with hash -762535647, now seen corresponding path program 1 times [2023-12-18 22:20:11,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:11,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217334602] [2023-12-18 22:20:11,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:11,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:11,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:11,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:11,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:11,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:11,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:11,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:11,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:11,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217334602] [2023-12-18 22:20:11,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217334602] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:11,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:11,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:11,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365206540] [2023-12-18 22:20:11,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:11,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:11,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:11,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:11,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:11,778 INFO L87 Difference]: Start difference. First operand 4397 states and 7624 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:13,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:13,316 INFO L93 Difference]: Finished difference Result 7464 states and 12699 transitions. [2023-12-18 22:20:13,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-18 22:20:13,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:13,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:13,348 INFO L225 Difference]: With dead ends: 7464 [2023-12-18 22:20:13,348 INFO L226 Difference]: Without dead ends: 5204 [2023-12-18 22:20:13,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-18 22:20:13,359 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4871 mSDsluCounter, 16496 mSDsCounter, 0 mSdLazyCounter, 1573 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4889 SdHoareTripleChecker+Valid, 20671 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:13,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4889 Valid, 20671 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1573 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-18 22:20:13,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5204 states. [2023-12-18 22:20:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5204 to 4397. [2023-12-18 22:20:13,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4397 states, 4180 states have (on average 1.7354066985645933) internal successors, (7254), 4190 states have internal predecessors, (7254), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2023-12-18 22:20:13,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 7615 transitions. [2023-12-18 22:20:13,512 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 7615 transitions. Word has length 141 [2023-12-18 22:20:13,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:13,514 INFO L495 AbstractCegarLoop]: Abstraction has 4397 states and 7615 transitions. [2023-12-18 22:20:13,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:13,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 7615 transitions. [2023-12-18 22:20:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:13,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:13,518 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:13,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-18 22:20:13,518 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:13,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:13,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1166396579, now seen corresponding path program 1 times [2023-12-18 22:20:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:13,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627578232] [2023-12-18 22:20:13,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:13,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:13,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:13,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:13,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:13,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:13,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:13,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:13,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:13,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:13,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:13,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627578232] [2023-12-18 22:20:13,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627578232] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:13,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:13,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:13,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877099988] [2023-12-18 22:20:13,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:13,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:13,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:13,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:13,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:13,768 INFO L87 Difference]: Start difference. First operand 4397 states and 7615 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:16,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:16,803 INFO L93 Difference]: Finished difference Result 10354 states and 17366 transitions. [2023-12-18 22:20:16,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:20:16,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:16,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:16,832 INFO L225 Difference]: With dead ends: 10354 [2023-12-18 22:20:16,832 INFO L226 Difference]: Without dead ends: 8096 [2023-12-18 22:20:16,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:20:16,844 INFO L413 NwaCegarLoop]: 4359 mSDtfsCounter, 5186 mSDsluCounter, 17153 mSDsCounter, 0 mSdLazyCounter, 3083 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5203 SdHoareTripleChecker+Valid, 21512 SdHoareTripleChecker+Invalid, 3147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 3083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:16,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5203 Valid, 21512 Invalid, 3147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 3083 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-18 22:20:16,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8096 states. [2023-12-18 22:20:17,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8096 to 6657. [2023-12-18 22:20:17,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6657 states, 6232 states have (on average 1.6882220795892169) internal successors, (10521), 6250 states have internal predecessors, (10521), 311 states have call successors, (311), 96 states have call predecessors, (311), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2023-12-18 22:20:17,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6657 states to 6657 states and 11256 transitions. [2023-12-18 22:20:17,244 INFO L78 Accepts]: Start accepts. Automaton has 6657 states and 11256 transitions. Word has length 141 [2023-12-18 22:20:17,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:17,245 INFO L495 AbstractCegarLoop]: Abstraction has 6657 states and 11256 transitions. [2023-12-18 22:20:17,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:17,245 INFO L276 IsEmpty]: Start isEmpty. Operand 6657 states and 11256 transitions. [2023-12-18 22:20:17,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:17,249 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:17,250 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:17,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-18 22:20:17,250 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:17,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:17,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1401425755, now seen corresponding path program 1 times [2023-12-18 22:20:17,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:17,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740800398] [2023-12-18 22:20:17,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:17,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:17,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:17,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:17,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:17,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:17,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:17,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:17,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:17,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740800398] [2023-12-18 22:20:17,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740800398] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:17,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:17,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:17,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660905399] [2023-12-18 22:20:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:17,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:17,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:17,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:17,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:17,467 INFO L87 Difference]: Start difference. First operand 6657 states and 11256 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:20,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:20,407 INFO L93 Difference]: Finished difference Result 18478 states and 30647 transitions. [2023-12-18 22:20:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-18 22:20:20,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:20,460 INFO L225 Difference]: With dead ends: 18478 [2023-12-18 22:20:20,460 INFO L226 Difference]: Without dead ends: 13960 [2023-12-18 22:20:20,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-18 22:20:20,482 INFO L413 NwaCegarLoop]: 4310 mSDtfsCounter, 5212 mSDsluCounter, 17089 mSDsCounter, 0 mSdLazyCounter, 2822 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5229 SdHoareTripleChecker+Valid, 21399 SdHoareTripleChecker+Invalid, 2892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 2822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:20,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5229 Valid, 21399 Invalid, 2892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 2822 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-12-18 22:20:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13960 states. [2023-12-18 22:20:20,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13960 to 11193. [2023-12-18 22:20:21,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11193 states, 10352 states have (on average 1.6498261205564142) internal successors, (17079), 10386 states have internal predecessors, (17079), 615 states have call successors, (615), 192 states have call predecessors, (615), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2023-12-18 22:20:21,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11193 states to 11193 states and 18616 transitions. [2023-12-18 22:20:21,042 INFO L78 Accepts]: Start accepts. Automaton has 11193 states and 18616 transitions. Word has length 141 [2023-12-18 22:20:21,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:21,043 INFO L495 AbstractCegarLoop]: Abstraction has 11193 states and 18616 transitions. [2023-12-18 22:20:21,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:21,043 INFO L276 IsEmpty]: Start isEmpty. Operand 11193 states and 18616 transitions. [2023-12-18 22:20:21,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:21,053 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:21,053 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:21,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-18 22:20:21,053 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:21,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:21,054 INFO L85 PathProgramCache]: Analyzing trace with hash -930069405, now seen corresponding path program 1 times [2023-12-18 22:20:21,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:21,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615010832] [2023-12-18 22:20:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:21,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:21,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:21,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:21,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:21,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:21,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:21,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:21,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615010832] [2023-12-18 22:20:21,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615010832] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:21,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:21,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:21,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728893734] [2023-12-18 22:20:21,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:21,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:21,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:21,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:21,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:21,273 INFO L87 Difference]: Start difference. First operand 11193 states and 18616 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:24,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:24,994 INFO L93 Difference]: Finished difference Result 38822 states and 64027 transitions. [2023-12-18 22:20:25,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:20:25,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:25,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:25,107 INFO L225 Difference]: With dead ends: 38822 [2023-12-18 22:20:25,108 INFO L226 Difference]: Without dead ends: 29768 [2023-12-18 22:20:25,151 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:20:25,152 INFO L413 NwaCegarLoop]: 4355 mSDtfsCounter, 5552 mSDsluCounter, 17148 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5580 SdHoareTripleChecker+Valid, 21503 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:25,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5580 Valid, 21503 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:20:25,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29768 states. [2023-12-18 22:20:25,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29768 to 20233. [2023-12-18 22:20:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20233 states, 18592 states have (on average 1.6249462134251291) internal successors, (30211), 18658 states have internal predecessors, (30211), 1191 states have call successors, (1191), 384 states have call predecessors, (1191), 448 states have return successors, (2048), 1254 states have call predecessors, (2048), 1191 states have call successors, (2048) [2023-12-18 22:20:25,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20233 states to 20233 states and 33450 transitions. [2023-12-18 22:20:25,933 INFO L78 Accepts]: Start accepts. Automaton has 20233 states and 33450 transitions. Word has length 141 [2023-12-18 22:20:25,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:25,933 INFO L495 AbstractCegarLoop]: Abstraction has 20233 states and 33450 transitions. [2023-12-18 22:20:25,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 20233 states and 33450 transitions. [2023-12-18 22:20:25,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:25,949 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:25,949 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:25,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-18 22:20:25,949 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:25,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:25,950 INFO L85 PathProgramCache]: Analyzing trace with hash 1717534949, now seen corresponding path program 1 times [2023-12-18 22:20:25,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:25,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924923941] [2023-12-18 22:20:25,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:25,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:25,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:26,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:26,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:26,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:26,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:26,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:26,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:26,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:26,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:26,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:26,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:26,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924923941] [2023-12-18 22:20:26,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924923941] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:26,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:26,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:26,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605355951] [2023-12-18 22:20:26,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:26,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:26,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:26,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:26,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:26,152 INFO L87 Difference]: Start difference. First operand 20233 states and 33450 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:30,622 INFO L93 Difference]: Finished difference Result 74518 states and 123319 transitions. [2023-12-18 22:20:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:20:30,623 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:30,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:30,860 INFO L225 Difference]: With dead ends: 74518 [2023-12-18 22:20:30,861 INFO L226 Difference]: Without dead ends: 56424 [2023-12-18 22:20:30,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:20:30,923 INFO L413 NwaCegarLoop]: 4357 mSDtfsCounter, 5271 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 3603 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5287 SdHoareTripleChecker+Valid, 21502 SdHoareTripleChecker+Invalid, 3669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:30,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5287 Valid, 21502 Invalid, 3669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 3603 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-18 22:20:30,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56424 states. [2023-12-18 22:20:32,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56424 to 37993. [2023-12-18 22:20:32,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37993 states, 34784 states have (on average 1.610711821527139) internal successors, (56027), 34914 states have internal predecessors, (56027), 2311 states have call successors, (2311), 768 states have call predecessors, (2311), 896 states have return successors, (4754), 2438 states have call predecessors, (4754), 2311 states have call successors, (4754) [2023-12-18 22:20:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37993 states to 37993 states and 63092 transitions. [2023-12-18 22:20:32,904 INFO L78 Accepts]: Start accepts. Automaton has 37993 states and 63092 transitions. Word has length 141 [2023-12-18 22:20:32,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:32,905 INFO L495 AbstractCegarLoop]: Abstraction has 37993 states and 63092 transitions. [2023-12-18 22:20:32,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:32,905 INFO L276 IsEmpty]: Start isEmpty. Operand 37993 states and 63092 transitions. [2023-12-18 22:20:32,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:32,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:32,934 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:32,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-18 22:20:32,935 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:32,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:32,935 INFO L85 PathProgramCache]: Analyzing trace with hash -413815773, now seen corresponding path program 1 times [2023-12-18 22:20:32,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:32,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755764283] [2023-12-18 22:20:32,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:32,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:32,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:33,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:33,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:33,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:33,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:33,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:33,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755764283] [2023-12-18 22:20:33,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755764283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:33,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:33,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:33,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464588481] [2023-12-18 22:20:33,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:33,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:33,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:33,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:33,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:33,125 INFO L87 Difference]: Start difference. First operand 37993 states and 63092 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:38,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:38,192 INFO L93 Difference]: Finished difference Result 144054 states and 240647 transitions. [2023-12-18 22:20:38,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:20:38,192 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:38,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:38,691 INFO L225 Difference]: With dead ends: 144054 [2023-12-18 22:20:38,691 INFO L226 Difference]: Without dead ends: 108200 [2023-12-18 22:20:38,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:20:38,793 INFO L413 NwaCegarLoop]: 4358 mSDtfsCounter, 5484 mSDsluCounter, 17148 mSDsCounter, 0 mSdLazyCounter, 3026 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5512 SdHoareTripleChecker+Valid, 21506 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:38,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5512 Valid, 21506 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 3026 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:20:38,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108200 states. [2023-12-18 22:20:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108200 to 73833. [2023-12-18 22:20:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73833 states, 67552 states have (on average 1.6031945760303175) internal successors, (108299), 67810 states have internal predecessors, (108299), 4487 states have call successors, (4487), 1536 states have call predecessors, (4487), 1792 states have return successors, (11560), 4742 states have call predecessors, (11560), 4487 states have call successors, (11560) [2023-12-18 22:20:42,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73833 states to 73833 states and 124346 transitions. [2023-12-18 22:20:42,743 INFO L78 Accepts]: Start accepts. Automaton has 73833 states and 124346 transitions. Word has length 141 [2023-12-18 22:20:42,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:42,743 INFO L495 AbstractCegarLoop]: Abstraction has 73833 states and 124346 transitions. [2023-12-18 22:20:42,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:42,743 INFO L276 IsEmpty]: Start isEmpty. Operand 73833 states and 124346 transitions. [2023-12-18 22:20:42,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:42,790 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:42,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:42,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-18 22:20:42,790 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:42,791 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:42,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1452400347, now seen corresponding path program 1 times [2023-12-18 22:20:42,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:42,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991872967] [2023-12-18 22:20:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:42,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:42,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:42,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:42,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:42,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:42,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:42,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:42,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:42,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:42,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991872967] [2023-12-18 22:20:42,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991872967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:42,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:42,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:42,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444585787] [2023-12-18 22:20:42,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:42,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:42,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:42,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:42,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:42,991 INFO L87 Difference]: Start difference. First operand 73833 states and 124346 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:50,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:20:50,787 INFO L93 Difference]: Finished difference Result 282038 states and 479215 transitions. [2023-12-18 22:20:50,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:20:50,788 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:20:50,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:20:51,741 INFO L225 Difference]: With dead ends: 282038 [2023-12-18 22:20:51,741 INFO L226 Difference]: Without dead ends: 210344 [2023-12-18 22:20:52,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:20:52,064 INFO L413 NwaCegarLoop]: 4357 mSDtfsCounter, 5450 mSDsluCounter, 17148 mSDsCounter, 0 mSdLazyCounter, 3008 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5478 SdHoareTripleChecker+Valid, 21505 SdHoareTripleChecker+Invalid, 3075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 3008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-18 22:20:52,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5478 Valid, 21505 Invalid, 3075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 3008 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-18 22:20:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210344 states. [2023-12-18 22:20:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210344 to 145513. [2023-12-18 22:20:58,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145513 states, 133216 states have (on average 1.5996501921691089) internal successors, (213099), 133730 states have internal predecessors, (213099), 8711 states have call successors, (8711), 3072 states have call predecessors, (8711), 3584 states have return successors, (29418), 9222 states have call predecessors, (29418), 8711 states have call successors, (29418) [2023-12-18 22:20:59,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145513 states to 145513 states and 251228 transitions. [2023-12-18 22:20:59,294 INFO L78 Accepts]: Start accepts. Automaton has 145513 states and 251228 transitions. Word has length 141 [2023-12-18 22:20:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:20:59,294 INFO L495 AbstractCegarLoop]: Abstraction has 145513 states and 251228 transitions. [2023-12-18 22:20:59,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:20:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 145513 states and 251228 transitions. [2023-12-18 22:20:59,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:20:59,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:20:59,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:20:59,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-18 22:20:59,384 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:20:59,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:20:59,385 INFO L85 PathProgramCache]: Analyzing trace with hash 869401571, now seen corresponding path program 1 times [2023-12-18 22:20:59,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:20:59,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716191612] [2023-12-18 22:20:59,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:20:59,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:20:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:59,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:20:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:59,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:20:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:59,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:20:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:59,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:20:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:59,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:20:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:20:59,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:20:59,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:20:59,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716191612] [2023-12-18 22:20:59,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716191612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:20:59,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:20:59,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:20:59,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982854113] [2023-12-18 22:20:59,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:20:59,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:20:59,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:20:59,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:20:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:20:59,583 INFO L87 Difference]: Start difference. First operand 145513 states and 251228 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:21:12,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:21:12,732 INFO L93 Difference]: Finished difference Result 554166 states and 967191 transitions. [2023-12-18 22:21:12,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:21:12,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:21:12,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-18 22:21:15,172 INFO L225 Difference]: With dead ends: 554166 [2023-12-18 22:21:15,172 INFO L226 Difference]: Without dead ends: 410792 [2023-12-18 22:21:15,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-18 22:21:15,719 INFO L413 NwaCegarLoop]: 4355 mSDtfsCounter, 5254 mSDsluCounter, 17148 mSDsCounter, 0 mSdLazyCounter, 3407 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5270 SdHoareTripleChecker+Valid, 21503 SdHoareTripleChecker+Invalid, 3473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 3407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-18 22:21:15,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5270 Valid, 21503 Invalid, 3473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 3407 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-18 22:21:16,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410792 states. [2023-12-18 22:21:28,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410792 to 288873. [2023-12-18 22:21:29,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288873 states, 264800 states have (on average 1.5982288519637462) internal successors, (423211), 265826 states have internal predecessors, (423211), 16903 states have call successors, (16903), 6144 states have call predecessors, (16903), 7168 states have return successors, (78000), 17926 states have call predecessors, (78000), 16903 states have call successors, (78000) [2023-12-18 22:21:31,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288873 states to 288873 states and 518114 transitions. [2023-12-18 22:21:31,377 INFO L78 Accepts]: Start accepts. Automaton has 288873 states and 518114 transitions. Word has length 141 [2023-12-18 22:21:31,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-18 22:21:31,378 INFO L495 AbstractCegarLoop]: Abstraction has 288873 states and 518114 transitions. [2023-12-18 22:21:31,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:21:31,378 INFO L276 IsEmpty]: Start isEmpty. Operand 288873 states and 518114 transitions. [2023-12-18 22:21:31,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-18 22:21:31,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-18 22:21:31,781 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-18 22:21:31,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-18 22:21:31,781 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-18 22:21:31,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-18 22:21:31,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1272458907, now seen corresponding path program 1 times [2023-12-18 22:21:31,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-18 22:21:31,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344419787] [2023-12-18 22:21:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-18 22:21:31,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-18 22:21:31,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:21:31,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-18 22:21:31,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:21:31,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-12-18 22:21:31,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:21:31,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-12-18 22:21:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:21:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-18 22:21:31,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:21:31,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-12-18 22:21:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-18 22:21:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-18 22:21:31,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-18 22:21:31,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344419787] [2023-12-18 22:21:31,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344419787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-18 22:21:31,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-18 22:21:31,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-18 22:21:31,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848448454] [2023-12-18 22:21:31,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-18 22:21:31,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-18 22:21:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-18 22:21:31,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-18 22:21:31,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-18 22:21:31,977 INFO L87 Difference]: Start difference. First operand 288873 states and 518114 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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) [2023-12-18 22:21:56,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-18 22:21:56,759 INFO L93 Difference]: Finished difference Result 1077430 states and 1961839 transitions. [2023-12-18 22:21:56,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-18 22:21:56,760 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 5 states have internal predecessors, (131), 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 141 [2023-12-18 22:21:56,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted.