/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 11:34:46,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 11:34:46,486 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 11:34:46,496 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 11:34:46,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 11:34:46,526 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 11:34:46,527 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 11:34:46,527 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 11:34:46,528 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 11:34:46,529 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 11:34:46,530 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 11:34:46,530 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 11:34:46,530 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 11:34:46,531 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 11:34:46,531 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 11:34:46,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 11:34:46,531 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 11:34:46,532 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 11:34:46,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 11:34:46,532 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 11:34:46,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 11:34:46,533 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 11:34:46,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 11:34:46,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 11:34:46,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 11:34:46,534 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 11:34:46,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 11:34:46,534 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 11:34:46,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 11:34:46,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 11:34:46,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 11:34:46,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 11:34:46,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:34:46,535 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 11:34:46,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 11:34:46,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 11:34:46,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 11:34:46,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 11:34:46,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 11:34:46,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 11:34:46,536 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 11:34:46,537 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 11:34:46,537 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 11:34:46,537 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 11:34:46,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 11:34:46,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 11:34:46,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 11:34:46,808 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 11:34:46,808 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 11:34:46,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c [2023-12-20 11:34:47,964 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 11:34:48,522 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 11:34:48,523 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label46+token_ring.06.cil-1.c [2023-12-20 11:34:48,579 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ecc31f28/fb1b58219b8a46c29a9345e7c8f242ab/FLAG6fefa9364 [2023-12-20 11:34:48,595 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ecc31f28/fb1b58219b8a46c29a9345e7c8f242ab [2023-12-20 11:34:48,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 11:34:48,598 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 11:34:48,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 11:34:48,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 11:34:48,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 11:34:48,605 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:34:48" (1/1) ... [2023-12-20 11:34:48,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c49d369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:48, skipping insertion in model container [2023-12-20 11:34:48,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:34:48" (1/1) ... [2023-12-20 11:34:48,822 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 11:34:50,390 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_label46+token_ring.06.cil-1.c[382357,382370] [2023-12-20 11:34:50,414 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_label46+token_ring.06.cil-1.c[383339,383352] [2023-12-20 11:34:50,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:34:50,569 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 11:34:51,348 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_label46+token_ring.06.cil-1.c[382357,382370] [2023-12-20 11:34:51,352 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_label46+token_ring.06.cil-1.c[383339,383352] [2023-12-20 11:34:51,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:34:51,444 INFO L206 MainTranslator]: Completed translation [2023-12-20 11:34:51,447 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51 WrapperNode [2023-12-20 11:34:51,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 11:34:51,451 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 11:34:51,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 11:34:51,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 11:34:51,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:51,535 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:51,961 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12879 [2023-12-20 11:34:51,961 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 11:34:51,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 11:34:51,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 11:34:51,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 11:34:51,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:51,975 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,156 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]. [2023-12-20 11:34:52,157 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,157 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,395 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,459 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 11:34:52,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 11:34:52,614 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 11:34:52,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 11:34:52,615 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (1/1) ... [2023-12-20 11:34:52,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:34:52,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:34:52,651 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) [2023-12-20 11:34:52,677 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 [2023-12-20 11:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 11:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 11:34:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 11:34:52,687 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 11:34:52,687 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 11:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 11:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 11:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-20 11:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-20 11:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 11:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 11:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 11:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 11:34:52,688 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 11:34:52,688 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 11:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 11:34:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 11:34:52,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 11:34:52,809 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 11:34:52,811 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 11:34:59,395 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 11:34:59,480 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 11:34:59,481 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-20 11:34:59,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:34:59 BoogieIcfgContainer [2023-12-20 11:34:59,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 11:34:59,483 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 11:34:59,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 11:34:59,487 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 11:34:59,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:34:48" (1/3) ... [2023-12-20 11:34:59,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6771fa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:34:59, skipping insertion in model container [2023-12-20 11:34:59,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:34:51" (2/3) ... [2023-12-20 11:34:59,488 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6771fa7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:34:59, skipping insertion in model container [2023-12-20 11:34:59,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:34:59" (3/3) ... [2023-12-20 11:34:59,489 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.06.cil-1.c [2023-12-20 11:34:59,504 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 11:34:59,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-20 11:34:59,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 11:34:59,583 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;@484a4290, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 11:34:59,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-20 11:34:59,598 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-20 11:34:59,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:34:59,615 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:34:59,616 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] [2023-12-20 11:34:59,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:34:59,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:34:59,621 INFO L85 PathProgramCache]: Analyzing trace with hash -300332103, now seen corresponding path program 1 times [2023-12-20 11:34:59,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:34:59,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472920180] [2023-12-20 11:34:59,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:34:59,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:34:59,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:34:59,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:34:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:00,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:00,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:00,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:00,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:00,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:00,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472920180] [2023-12-20 11:35:00,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472920180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:00,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:00,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 11:35:00,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677356343] [2023-12-20 11:35:00,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:00,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 11:35:00,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:00,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 11:35:00,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 11:35:00,171 INFO L87 Difference]: Start difference. First operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:01,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:01,259 INFO L93 Difference]: Finished difference Result 4743 states and 8886 transitions. [2023-12-20 11:35:01,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 11:35:01,261 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:01,283 INFO L225 Difference]: With dead ends: 4743 [2023-12-20 11:35:01,283 INFO L226 Difference]: Without dead ends: 2406 [2023-12-20 11:35:01,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 11:35:01,294 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 567 mSDsluCounter, 12090 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 16244 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:01,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 16244 Invalid, 648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:35:01,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2023-12-20 11:35:01,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2336. [2023-12-20 11:35:01,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8460537727666955) internal successors, (4257), 2309 states have internal predecessors, (4257), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-20 11:35:01,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4299 transitions. [2023-12-20 11:35:01,408 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4299 transitions. Word has length 102 [2023-12-20 11:35:01,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:01,408 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4299 transitions. [2023-12-20 11:35:01,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:01,409 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4299 transitions. [2023-12-20 11:35:01,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:01,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:01,412 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] [2023-12-20 11:35:01,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 11:35:01,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:01,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:01,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1640249911, now seen corresponding path program 1 times [2023-12-20 11:35:01,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:01,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95859175] [2023-12-20 11:35:01,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:01,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:01,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:01,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:01,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:01,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:01,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:01,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95859175] [2023-12-20 11:35:01,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95859175] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:01,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:01,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:01,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962281107] [2023-12-20 11:35:01,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:01,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:01,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:01,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:01,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:01,721 INFO L87 Difference]: Start difference. First operand 2336 states and 4299 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:03,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:03,886 INFO L93 Difference]: Finished difference Result 2902 states and 5234 transitions. [2023-12-20 11:35:03,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:35:03,894 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:03,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:03,914 INFO L225 Difference]: With dead ends: 2902 [2023-12-20 11:35:03,915 INFO L226 Difference]: Without dead ends: 2699 [2023-12-20 11:35:03,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:35:03,918 INFO L413 NwaCegarLoop]: 4263 mSDtfsCounter, 4757 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21079 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:03,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21079 Invalid, 2245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-20 11:35:03,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2023-12-20 11:35:03,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2548. [2023-12-20 11:35:03,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2493 states have (on average 1.829923786602487) internal successors, (4562), 2498 states have internal predecessors, (4562), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2023-12-20 11:35:03,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4645 transitions. [2023-12-20 11:35:03,993 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4645 transitions. Word has length 102 [2023-12-20 11:35:03,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:03,994 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 4645 transitions. [2023-12-20 11:35:03,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:03,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4645 transitions. [2023-12-20 11:35:03,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:03,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:03,997 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] [2023-12-20 11:35:03,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 11:35:03,998 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:03,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:03,998 INFO L85 PathProgramCache]: Analyzing trace with hash -318324875, now seen corresponding path program 1 times [2023-12-20 11:35:03,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:03,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379565127] [2023-12-20 11:35:03,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:03,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:04,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:04,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:04,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:04,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:04,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:04,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:04,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:04,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:04,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:04,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379565127] [2023-12-20 11:35:04,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379565127] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:04,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:04,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:04,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208792509] [2023-12-20 11:35:04,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:04,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:04,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:04,181 INFO L87 Difference]: Start difference. First operand 2548 states and 4645 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:06,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:06,151 INFO L93 Difference]: Finished difference Result 3616 states and 6396 transitions. [2023-12-20 11:35:06,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:35:06,151 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:06,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:06,172 INFO L225 Difference]: With dead ends: 3616 [2023-12-20 11:35:06,172 INFO L226 Difference]: Without dead ends: 3203 [2023-12-20 11:35:06,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:35:06,175 INFO L413 NwaCegarLoop]: 4226 mSDtfsCounter, 4782 mSDsluCounter, 16764 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 20990 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:06,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 20990 Invalid, 2055 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 11:35:06,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2023-12-20 11:35:06,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 2936. [2023-12-20 11:35:06,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8022559041240747) internal successors, (5113), 2844 states have internal predecessors, (5113), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:35:06,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5266 transitions. [2023-12-20 11:35:06,350 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5266 transitions. Word has length 102 [2023-12-20 11:35:06,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:06,351 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5266 transitions. [2023-12-20 11:35:06,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:06,351 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5266 transitions. [2023-12-20 11:35:06,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:06,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:06,354 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] [2023-12-20 11:35:06,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 11:35:06,355 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:06,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:06,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1558157943, now seen corresponding path program 1 times [2023-12-20 11:35:06,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:06,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902043189] [2023-12-20 11:35:06,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:06,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:06,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:06,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:06,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:06,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:06,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:06,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902043189] [2023-12-20 11:35:06,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902043189] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:06,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:06,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:06,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026642975] [2023-12-20 11:35:06,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:06,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:06,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:06,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:06,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:06,582 INFO L87 Difference]: Start difference. First operand 2936 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:07,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:07,565 INFO L93 Difference]: Finished difference Result 4009 states and 7040 transitions. [2023-12-20 11:35:07,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:35:07,566 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:07,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:07,581 INFO L225 Difference]: With dead ends: 4009 [2023-12-20 11:35:07,581 INFO L226 Difference]: Without dead ends: 3206 [2023-12-20 11:35:07,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:35:07,586 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4659 mSDsluCounter, 12253 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 16371 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:07,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 16371 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:35:07,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2023-12-20 11:35:07,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2936. [2023-12-20 11:35:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8004934790271414) internal successors, (5108), 2844 states have internal predecessors, (5108), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:35:07,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5261 transitions. [2023-12-20 11:35:07,691 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5261 transitions. Word has length 102 [2023-12-20 11:35:07,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:07,691 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5261 transitions. [2023-12-20 11:35:07,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:07,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5261 transitions. [2023-12-20 11:35:07,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:07,694 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:07,694 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] [2023-12-20 11:35:07,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 11:35:07,695 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:07,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:07,695 INFO L85 PathProgramCache]: Analyzing trace with hash -320973003, now seen corresponding path program 1 times [2023-12-20 11:35:07,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:07,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176862642] [2023-12-20 11:35:07,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:07,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:07,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:07,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:07,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:07,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:07,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:07,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:07,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176862642] [2023-12-20 11:35:07,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176862642] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:07,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:07,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:07,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409358481] [2023-12-20 11:35:07,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:07,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:07,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:07,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:07,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:07,885 INFO L87 Difference]: Start difference. First operand 2936 states and 5261 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:08,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:08,984 INFO L93 Difference]: Finished difference Result 4005 states and 7019 transitions. [2023-12-20 11:35:08,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:35:08,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:08,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:08,998 INFO L225 Difference]: With dead ends: 4005 [2023-12-20 11:35:08,998 INFO L226 Difference]: Without dead ends: 3202 [2023-12-20 11:35:09,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:35:09,003 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4571 mSDsluCounter, 16316 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4585 SdHoareTripleChecker+Valid, 20434 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:09,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4585 Valid, 20434 Invalid, 1117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-20 11:35:09,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2023-12-20 11:35:09,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2936. [2023-12-20 11:35:09,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.798731053930208) internal successors, (5103), 2844 states have internal predecessors, (5103), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:35:09,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5256 transitions. [2023-12-20 11:35:09,096 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5256 transitions. Word has length 102 [2023-12-20 11:35:09,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:09,096 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5256 transitions. [2023-12-20 11:35:09,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:09,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5256 transitions. [2023-12-20 11:35:09,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:09,098 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:09,099 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] [2023-12-20 11:35:09,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 11:35:09,099 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:09,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:09,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1003883191, now seen corresponding path program 1 times [2023-12-20 11:35:09,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:09,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530204935] [2023-12-20 11:35:09,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:09,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:09,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:09,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:09,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:09,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:09,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:09,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:09,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:09,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530204935] [2023-12-20 11:35:09,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530204935] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:09,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:09,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:09,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978746180] [2023-12-20 11:35:09,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:09,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:09,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:09,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:09,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:09,267 INFO L87 Difference]: Start difference. First operand 2936 states and 5256 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:10,229 INFO L93 Difference]: Finished difference Result 4000 states and 6996 transitions. [2023-12-20 11:35:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:35:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:10,241 INFO L225 Difference]: With dead ends: 4000 [2023-12-20 11:35:10,241 INFO L226 Difference]: Without dead ends: 3197 [2023-12-20 11:35:10,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:35:10,245 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4655 mSDsluCounter, 12253 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 16371 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:10,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4669 Valid, 16371 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-20 11:35:10,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2023-12-20 11:35:10,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2936. [2023-12-20 11:35:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.7969686288332747) internal successors, (5098), 2844 states have internal predecessors, (5098), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-20 11:35:10,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5251 transitions. [2023-12-20 11:35:10,327 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5251 transitions. Word has length 102 [2023-12-20 11:35:10,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:10,327 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5251 transitions. [2023-12-20 11:35:10,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:10,328 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5251 transitions. [2023-12-20 11:35:10,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:10,330 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:10,330 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] [2023-12-20 11:35:10,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 11:35:10,330 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:10,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:10,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1724326155, now seen corresponding path program 1 times [2023-12-20 11:35:10,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:10,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520091922] [2023-12-20 11:35:10,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:10,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:10,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:10,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:10,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:10,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:10,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:10,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:10,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:10,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:10,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:10,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520091922] [2023-12-20 11:35:10,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520091922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:10,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:10,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:10,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935677171] [2023-12-20 11:35:10,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:10,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:10,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:10,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:10,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:10,486 INFO L87 Difference]: Start difference. First operand 2936 states and 5251 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:12,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:12,346 INFO L93 Difference]: Finished difference Result 4993 states and 8567 transitions. [2023-12-20 11:35:12,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:35:12,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:12,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:12,372 INFO L225 Difference]: With dead ends: 4993 [2023-12-20 11:35:12,372 INFO L226 Difference]: Without dead ends: 4192 [2023-12-20 11:35:12,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:35:12,378 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 4748 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 21078 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:12,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 21078 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 11:35:12,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2023-12-20 11:35:12,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3723. [2023-12-20 11:35:12,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3536 states have (on average 1.7531108597285068) internal successors, (6199), 3547 states have internal predecessors, (6199), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2023-12-20 11:35:12,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 6498 transitions. [2023-12-20 11:35:12,508 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 6498 transitions. Word has length 102 [2023-12-20 11:35:12,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:12,511 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 6498 transitions. [2023-12-20 11:35:12,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:12,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 6498 transitions. [2023-12-20 11:35:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:12,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:12,515 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] [2023-12-20 11:35:12,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 11:35:12,515 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:12,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:12,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1512803063, now seen corresponding path program 1 times [2023-12-20 11:35:12,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:12,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889065171] [2023-12-20 11:35:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:12,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:12,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:12,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:12,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:12,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:12,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:12,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:12,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:12,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889065171] [2023-12-20 11:35:12,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889065171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:12,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:12,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:12,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144753084] [2023-12-20 11:35:12,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:12,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:12,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:12,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:12,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:12,775 INFO L87 Difference]: Start difference. First operand 3723 states and 6498 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:14,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:14,889 INFO L93 Difference]: Finished difference Result 8412 states and 14052 transitions. [2023-12-20 11:35:14,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:35:14,889 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:14,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:14,918 INFO L225 Difference]: With dead ends: 8412 [2023-12-20 11:35:14,919 INFO L226 Difference]: Without dead ends: 6824 [2023-12-20 11:35:14,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:35:14,928 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4978 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:14,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 21068 Invalid, 2127 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 11:35:14,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6824 states. [2023-12-20 11:35:15,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6824 to 5288. [2023-12-20 11:35:15,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 4933 states have (on average 1.7034259071558888) internal successors, (8403), 4952 states have internal predecessors, (8403), 241 states have call successors, (241), 97 states have call predecessors, (241), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2023-12-20 11:35:15,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 8996 transitions. [2023-12-20 11:35:15,135 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 8996 transitions. Word has length 102 [2023-12-20 11:35:15,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:15,135 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 8996 transitions. [2023-12-20 11:35:15,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 8996 transitions. [2023-12-20 11:35:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:15,140 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:15,140 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] [2023-12-20 11:35:15,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 11:35:15,140 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:15,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:15,141 INFO L85 PathProgramCache]: Analyzing trace with hash 370300597, now seen corresponding path program 1 times [2023-12-20 11:35:15,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:15,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359113091] [2023-12-20 11:35:15,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:15,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:15,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:15,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:15,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:15,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:15,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:15,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:15,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:15,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359113091] [2023-12-20 11:35:15,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359113091] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:15,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:15,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:15,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368297661] [2023-12-20 11:35:15,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:15,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:15,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:15,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:15,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:15,328 INFO L87 Difference]: Start difference. First operand 5288 states and 8996 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:17,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:17,250 INFO L93 Difference]: Finished difference Result 14195 states and 23402 transitions. [2023-12-20 11:35:17,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:35:17,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:17,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:17,289 INFO L225 Difference]: With dead ends: 14195 [2023-12-20 11:35:17,289 INFO L226 Difference]: Without dead ends: 11042 [2023-12-20 11:35:17,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:35:17,304 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4921 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:17,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4941 Valid, 21068 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:35:17,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2023-12-20 11:35:17,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8433. [2023-12-20 11:35:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8433 states, 7750 states have (on average 1.6589677419354838) internal successors, (12857), 7785 states have internal predecessors, (12857), 457 states have call successors, (457), 193 states have call predecessors, (457), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2023-12-20 11:35:17,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8433 states to 8433 states and 14076 transitions. [2023-12-20 11:35:17,643 INFO L78 Accepts]: Start accepts. Automaton has 8433 states and 14076 transitions. Word has length 102 [2023-12-20 11:35:17,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:17,643 INFO L495 AbstractCegarLoop]: Abstraction has 8433 states and 14076 transitions. [2023-12-20 11:35:17,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8433 states and 14076 transitions. [2023-12-20 11:35:17,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:17,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:17,651 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] [2023-12-20 11:35:17,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 11:35:17,651 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:17,651 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:17,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1209334259, now seen corresponding path program 1 times [2023-12-20 11:35:17,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:17,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201466619] [2023-12-20 11:35:17,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:17,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:17,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:17,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:17,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:17,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:17,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:17,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:17,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:17,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:17,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201466619] [2023-12-20 11:35:17,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201466619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:17,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:17,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:17,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069953420] [2023-12-20 11:35:17,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:17,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:17,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:17,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:17,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:17,809 INFO L87 Difference]: Start difference. First operand 8433 states and 14076 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:19,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:19,878 INFO L93 Difference]: Finished difference Result 25710 states and 42196 transitions. [2023-12-20 11:35:19,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:35:19,879 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:19,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:19,964 INFO L225 Difference]: With dead ends: 25710 [2023-12-20 11:35:19,964 INFO L226 Difference]: Without dead ends: 19412 [2023-12-20 11:35:19,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:35:19,999 INFO L413 NwaCegarLoop]: 4227 mSDtfsCounter, 4898 mSDsluCounter, 16762 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 20989 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:20,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 20989 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:35:20,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19412 states. [2023-12-20 11:35:20,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19412 to 14723. [2023-12-20 11:35:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14723 states, 13400 states have (on average 1.6266417910447761) internal successors, (21797), 13467 states have internal predecessors, (21797), 873 states have call successors, (873), 385 states have call predecessors, (873), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2023-12-20 11:35:20,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14723 states to 14723 states and 24398 transitions. [2023-12-20 11:35:20,838 INFO L78 Accepts]: Start accepts. Automaton has 14723 states and 24398 transitions. Word has length 102 [2023-12-20 11:35:20,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:20,839 INFO L495 AbstractCegarLoop]: Abstraction has 14723 states and 24398 transitions. [2023-12-20 11:35:20,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:20,839 INFO L276 IsEmpty]: Start isEmpty. Operand 14723 states and 24398 transitions. [2023-12-20 11:35:20,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:20,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:20,852 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] [2023-12-20 11:35:20,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 11:35:20,852 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:20,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:20,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1236399861, now seen corresponding path program 1 times [2023-12-20 11:35:20,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:20,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443795224] [2023-12-20 11:35:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:20,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:20,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:21,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:21,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:21,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:21,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:21,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443795224] [2023-12-20 11:35:21,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443795224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:21,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:21,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:21,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689677386] [2023-12-20 11:35:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:21,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:21,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:21,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:21,023 INFO L87 Difference]: Start difference. First operand 14723 states and 24398 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:23,608 INFO L93 Difference]: Finished difference Result 48260 states and 79600 transitions. [2023-12-20 11:35:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:35:23,609 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:23,755 INFO L225 Difference]: With dead ends: 48260 [2023-12-20 11:35:23,755 INFO L226 Difference]: Without dead ends: 35672 [2023-12-20 11:35:23,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:35:23,812 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4789 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:23,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 21068 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 11:35:23,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35672 states. [2023-12-20 11:35:24,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35672 to 27303. [2023-12-20 11:35:24,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27303 states, 24732 states have (on average 1.6068655992236778) internal successors, (39741), 24863 states have internal predecessors, (39741), 1673 states have call successors, (1673), 769 states have call predecessors, (1673), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2023-12-20 11:35:25,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27303 states to 27303 states and 45528 transitions. [2023-12-20 11:35:25,079 INFO L78 Accepts]: Start accepts. Automaton has 27303 states and 45528 transitions. Word has length 102 [2023-12-20 11:35:25,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:25,080 INFO L495 AbstractCegarLoop]: Abstraction has 27303 states and 45528 transitions. [2023-12-20 11:35:25,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:25,080 INFO L276 IsEmpty]: Start isEmpty. Operand 27303 states and 45528 transitions. [2023-12-20 11:35:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:25,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:25,102 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] [2023-12-20 11:35:25,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 11:35:25,102 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:25,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash -840937037, now seen corresponding path program 1 times [2023-12-20 11:35:25,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:25,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163147432] [2023-12-20 11:35:25,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:25,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:25,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:25,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:25,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:25,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:25,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163147432] [2023-12-20 11:35:25,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163147432] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:25,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:25,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:25,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320707005] [2023-12-20 11:35:25,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:25,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:25,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:25,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:25,248 INFO L87 Difference]: Start difference. First operand 27303 states and 45528 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:28,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:28,491 INFO L93 Difference]: Finished difference Result 92400 states and 154688 transitions. [2023-12-20 11:35:28,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:35:28,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:28,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:28,774 INFO L225 Difference]: With dead ends: 92400 [2023-12-20 11:35:28,774 INFO L226 Difference]: Without dead ends: 67232 [2023-12-20 11:35:28,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:35:28,849 INFO L413 NwaCegarLoop]: 4259 mSDtfsCounter, 4819 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 21070 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:28,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 21070 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 11:35:28,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67232 states. [2023-12-20 11:35:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67232 to 52463. [2023-12-20 11:35:31,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52463 states, 47460 states have (on average 1.596228402865571) internal successors, (75757), 47719 states have internal predecessors, (75757), 3209 states have call successors, (3209), 1537 states have call predecessors, (3209), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2023-12-20 11:35:31,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52463 states to 52463 states and 89246 transitions. [2023-12-20 11:35:31,287 INFO L78 Accepts]: Start accepts. Automaton has 52463 states and 89246 transitions. Word has length 102 [2023-12-20 11:35:31,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:31,288 INFO L495 AbstractCegarLoop]: Abstraction has 52463 states and 89246 transitions. [2023-12-20 11:35:31,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:31,288 INFO L276 IsEmpty]: Start isEmpty. Operand 52463 states and 89246 transitions. [2023-12-20 11:35:31,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:31,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:31,335 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] [2023-12-20 11:35:31,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 11:35:31,336 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:31,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:31,336 INFO L85 PathProgramCache]: Analyzing trace with hash 893167413, now seen corresponding path program 1 times [2023-12-20 11:35:31,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:31,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098742062] [2023-12-20 11:35:31,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:31,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:31,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:31,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:31,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:31,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:31,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:31,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:31,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:31,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:31,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098742062] [2023-12-20 11:35:31,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098742062] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:31,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:31,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:31,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100453054] [2023-12-20 11:35:31,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:31,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:31,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:31,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:31,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:31,495 INFO L87 Difference]: Start difference. First operand 52463 states and 89246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:36,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:36,108 INFO L93 Difference]: Finished difference Result 178760 states and 307368 transitions. [2023-12-20 11:35:36,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:35:36,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:36,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:37,019 INFO L225 Difference]: With dead ends: 178760 [2023-12-20 11:35:37,020 INFO L226 Difference]: Without dead ends: 128432 [2023-12-20 11:35:37,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:35:37,113 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 4770 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 21069 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:37,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 21069 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:35:37,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128432 states. [2023-12-20 11:35:42,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128432 to 102783. [2023-12-20 11:35:42,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102783 states, 93044 states have (on average 1.5911289282490004) internal successors, (148045), 93559 states have internal predecessors, (148045), 6153 states have call successors, (6153), 3073 states have call predecessors, (6153), 3584 states have return successors, (26858), 6662 states have call predecessors, (26858), 6151 states have call successors, (26858) [2023-12-20 11:35:42,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102783 states to 102783 states and 181056 transitions. [2023-12-20 11:35:42,865 INFO L78 Accepts]: Start accepts. Automaton has 102783 states and 181056 transitions. Word has length 102 [2023-12-20 11:35:42,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:35:42,866 INFO L495 AbstractCegarLoop]: Abstraction has 102783 states and 181056 transitions. [2023-12-20 11:35:42,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:42,866 INFO L276 IsEmpty]: Start isEmpty. Operand 102783 states and 181056 transitions. [2023-12-20 11:35:42,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-20 11:35:42,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:35:42,954 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] [2023-12-20 11:35:42,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 11:35:42,954 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:35:42,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:35:42,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1780390259, now seen corresponding path program 1 times [2023-12-20 11:35:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:35:42,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305048750] [2023-12-20 11:35:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:35:42,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:35:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:43,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:35:43,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:43,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:35:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:43,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:35:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:43,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:35:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:35:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:35:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:35:43,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:35:43,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305048750] [2023-12-20 11:35:43,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305048750] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:35:43,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:35:43,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:35:43,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709596752] [2023-12-20 11:35:43,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:35:43,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:35:43,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:35:43,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:35:43,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:35:43,099 INFO L87 Difference]: Start difference. First operand 102783 states and 181056 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:35:51,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:35:51,914 INFO L93 Difference]: Finished difference Result 349703 states and 609039 transitions. [2023-12-20 11:35:51,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-20 11:35:51,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-20 11:35:51,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:35:53,178 INFO L225 Difference]: With dead ends: 349703 [2023-12-20 11:35:53,178 INFO L226 Difference]: Without dead ends: 249055 [2023-12-20 11:35:53,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-12-20 11:35:53,492 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4770 mSDsluCounter, 16498 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 20647 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-20 11:35:53,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 20647 Invalid, 1502 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-20 11:35:53,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249055 states. [2023-12-20 11:36:01,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249055 to 200353. [2023-12-20 11:36:01,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200353 states, 180885 states have (on average 1.5696326395223485) internal successors, (283923), 182424 states have internal predecessors, (283923), 12298 states have call successors, (12298), 6145 states have call predecessors, (12298), 7168 states have return successors, (53197), 12295 states have call predecessors, (53197), 12296 states have call successors, (53197) [2023-12-20 11:36:03,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200353 states to 200353 states and 349418 transitions. [2023-12-20 11:36:03,090 INFO L78 Accepts]: Start accepts. Automaton has 200353 states and 349418 transitions. Word has length 102 [2023-12-20 11:36:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:36:03,091 INFO L495 AbstractCegarLoop]: Abstraction has 200353 states and 349418 transitions. [2023-12-20 11:36:03,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:36:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 200353 states and 349418 transitions. [2023-12-20 11:36:03,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-20 11:36:03,515 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:36:03,515 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:36:03,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 11:36:03,516 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:36:03,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:36:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash 542302856, now seen corresponding path program 1 times [2023-12-20 11:36:03,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:36:03,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752596258] [2023-12-20 11:36:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:36:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:36:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:36:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:36:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:36:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:36:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:36:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 11:36:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:36:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 11:36:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:36:03,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:36:03,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752596258] [2023-12-20 11:36:03,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752596258] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:36:03,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [709070866] [2023-12-20 11:36:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:36:03,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:36:03,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:36:03,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:36:03,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 11:36:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:03,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:36:03,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:36:03,968 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-20 11:36:03,968 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:36:03,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [709070866] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:36:03,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:36:03,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:36:03,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236037704] [2023-12-20 11:36:03,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:36:03,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:36:03,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:36:03,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:36:03,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:36:03,972 INFO L87 Difference]: Start difference. First operand 200353 states and 349418 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:36:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:36:17,237 INFO L93 Difference]: Finished difference Result 593715 states and 1040800 transitions. [2023-12-20 11:36:17,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:36:17,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2023-12-20 11:36:17,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:36:19,236 INFO L225 Difference]: With dead ends: 593715 [2023-12-20 11:36:19,236 INFO L226 Difference]: Without dead ends: 395497 [2023-12-20 11:36:19,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:36:19,822 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 4239 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4239 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:36:19,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4239 Valid, 4551 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 11:36:20,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395497 states. [2023-12-20 11:36:35,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395497 to 394469. [2023-12-20 11:36:36,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394469 states, 356055 states have (on average 1.5649688952549465) internal successors, (557215), 359130 states have internal predecessors, (557215), 24076 states have call successors, (24076), 12289 states have call predecessors, (24076), 14336 states have return successors, (105363), 23561 states have call predecessors, (105363), 24074 states have call successors, (105363) [2023-12-20 11:36:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394469 states to 394469 states and 686654 transitions. [2023-12-20 11:36:39,656 INFO L78 Accepts]: Start accepts. Automaton has 394469 states and 686654 transitions. Word has length 164 [2023-12-20 11:36:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:36:39,656 INFO L495 AbstractCegarLoop]: Abstraction has 394469 states and 686654 transitions. [2023-12-20 11:36:39,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:36:39,657 INFO L276 IsEmpty]: Start isEmpty. Operand 394469 states and 686654 transitions. [2023-12-20 11:36:40,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-12-20 11:36:40,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:36:40,505 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 11:36:40,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-20 11:36:40,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-20 11:36:40,714 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:36:40,714 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:36:40,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1123922728, now seen corresponding path program 1 times [2023-12-20 11:36:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:36:40,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326770103] [2023-12-20 11:36:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:36:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:36:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:36:41,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-20 11:36:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-20 11:36:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-20 11:36:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-20 11:36:41,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-12-20 11:36:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-20 11:36:41,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2023-12-20 11:36:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,249 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-20 11:36:41,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:36:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326770103] [2023-12-20 11:36:41,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326770103] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-20 11:36:41,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [355105158] [2023-12-20 11:36:41,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:36:41,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 11:36:41,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:36:41,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 11:36:41,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 11:36:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:36:41,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-20 11:36:41,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 11:36:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-20 11:36:41,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 11:36:41,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [355105158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:36:41,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-20 11:36:41,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-20 11:36:41,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780312935] [2023-12-20 11:36:41,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:36:41,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-20 11:36:41,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:36:41,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-20 11:36:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:36:41,614 INFO L87 Difference]: Start difference. First operand 394469 states and 686654 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-20 11:37:14,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:37:14,552 INFO L93 Difference]: Finished difference Result 1172991 states and 2053022 transitions. [2023-12-20 11:37:14,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-20 11:37:14,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 164 [2023-12-20 11:37:14,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:37:19,393 INFO L225 Difference]: With dead ends: 1172991 [2023-12-20 11:37:19,393 INFO L226 Difference]: Without dead ends: 780657 [2023-12-20 11:37:20,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:37:20,677 INFO L413 NwaCegarLoop]: 4266 mSDtfsCounter, 4229 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4229 SdHoareTripleChecker+Valid, 4551 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 11:37:20,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4229 Valid, 4551 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 11:37:21,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780657 states.