/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_label43+token_ring.13.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 11:26:39,980 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 11:26:40,018 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 11:26:40,022 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 11:26:40,022 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 11:26:40,036 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 11:26:40,036 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 11:26:40,037 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 11:26:40,037 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 11:26:40,037 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 11:26:40,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 11:26:40,038 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 11:26:40,038 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 11:26:40,038 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 11:26:40,038 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 11:26:40,039 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 11:26:40,039 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 11:26:40,039 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 11:26:40,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 11:26:40,040 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 11:26:40,040 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 11:26:40,040 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 11:26:40,040 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 11:26:40,041 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 11:26:40,041 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 11:26:40,041 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 11:26:40,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 11:26:40,041 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 11:26:40,042 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 11:26:40,042 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 11:26:40,042 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 11:26:40,042 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 11:26:40,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:26:40,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 11:26:40,043 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 11:26:40,044 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 11:26:40,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 11:26:40,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 11:26:40,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 11:26:40,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 11:26:40,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 11:26:40,250 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 11:26:40,250 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 11:26:40,251 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label43+token_ring.13.cil-2.c [2023-12-20 11:26:41,430 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 11:26:41,958 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 11:26:41,959 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label43+token_ring.13.cil-2.c [2023-12-20 11:26:42,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf09ada2c/c31815348ee64987a793e1bef44d8ed3/FLAG68127b422 [2023-12-20 11:26:42,029 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf09ada2c/c31815348ee64987a793e1bef44d8ed3 [2023-12-20 11:26:42,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 11:26:42,032 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 11:26:42,034 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 11:26:42,034 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 11:26:42,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 11:26:42,038 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:26:42" (1/1) ... [2023-12-20 11:26:42,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29163e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:42, skipping insertion in model container [2023-12-20 11:26:42,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 11:26:42" (1/1) ... [2023-12-20 11:26:42,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 11:26:43,397 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_label43+token_ring.13.cil-2.c[381679,381692] [2023-12-20 11:26:43,417 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_label43+token_ring.13.cil-2.c[383339,383352] [2023-12-20 11:26:43,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:26:43,671 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 11:26:44,294 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_label43+token_ring.13.cil-2.c[381679,381692] [2023-12-20 11:26:44,297 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_label43+token_ring.13.cil-2.c[383339,383352] [2023-12-20 11:26:44,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 11:26:44,357 INFO L206 MainTranslator]: Completed translation [2023-12-20 11:26:44,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44 WrapperNode [2023-12-20 11:26:44,359 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 11:26:44,360 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 11:26:44,360 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 11:26:44,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 11:26:44,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:44,427 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:44,770 INFO L138 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13293 [2023-12-20 11:26:44,771 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 11:26:44,771 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 11:26:44,771 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 11:26:44,772 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 11:26:44,779 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:44,780 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:44,834 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,040 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 11:26:45,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,405 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 11:26:45,495 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 11:26:45,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 11:26:45,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 11:26:45,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (1/1) ... [2023-12-20 11:26:45,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 11:26:45,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 11:26:45,517 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 11:26:45,538 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 11:26:45,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 11:26:45,543 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-20 11:26:45,543 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-20 11:26:45,544 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-20 11:26:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-20 11:26:45,544 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-20 11:26:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-20 11:26:45,544 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-20 11:26:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-20 11:26:45,544 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-20 11:26:45,544 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-20 11:26:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-20 11:26:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-20 11:26:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 11:26:45,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 11:26:45,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 11:26:45,661 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 11:26:45,662 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 11:26:51,225 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 11:26:51,340 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 11:26:51,340 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-20 11:26:51,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:26:51 BoogieIcfgContainer [2023-12-20 11:26:51,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 11:26:51,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 11:26:51,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 11:26:51,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 11:26:51,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 11:26:42" (1/3) ... [2023-12-20 11:26:51,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5ef462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:26:51, skipping insertion in model container [2023-12-20 11:26:51,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 11:26:44" (2/3) ... [2023-12-20 11:26:51,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a5ef462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 11:26:51, skipping insertion in model container [2023-12-20 11:26:51,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 11:26:51" (3/3) ... [2023-12-20 11:26:51,346 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.13.cil-2.c [2023-12-20 11:26:51,357 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 11:26:51,357 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-20 11:26:51,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 11:26:51,421 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;@6def2c2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 11:26:51,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-20 11:26:51,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 11:26:51,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:26:51,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:26:51,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:51,445 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:26:51,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:26:51,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1828825109, now seen corresponding path program 1 times [2023-12-20 11:26:51,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:26:51,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589359150] [2023-12-20 11:26:51,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:26:51,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:26:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:51,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:26:51,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:51,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:26:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:51,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:26:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:51,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:26:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:51,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:26:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:51,998 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 11:26:51,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:26:51,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589359150] [2023-12-20 11:26:52,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589359150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:26:52,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:26:52,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:26:52,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874375] [2023-12-20 11:26:52,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:26:52,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:26:52,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:26:52,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:26:52,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:26:52,038 INFO L87 Difference]: Start difference. First operand has 2494 states, 2458 states have (on average 1.8746948738812041) internal successors, (4608), 2461 states have internal predecessors, (4608), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:26:54,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:26:54,923 INFO L93 Difference]: Finished difference Result 5170 states and 9654 transitions. [2023-12-20 11:26:54,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 11:26:54,926 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:26:54,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:26:54,943 INFO L225 Difference]: With dead ends: 5170 [2023-12-20 11:26:54,944 INFO L226 Difference]: Without dead ends: 2678 [2023-12-20 11:26:54,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-12-20 11:26:54,954 INFO L413 NwaCegarLoop]: 4276 mSDtfsCounter, 1247 mSDsluCounter, 20684 mSDsCounter, 0 mSdLazyCounter, 2256 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1275 SdHoareTripleChecker+Valid, 24960 SdHoareTripleChecker+Invalid, 2317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 2256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-12-20 11:26:54,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1275 Valid, 24960 Invalid, 2317 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 2256 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-12-20 11:26:54,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2023-12-20 11:26:55,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2492. [2023-12-20 11:26:55,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8347578347578348) internal successors, (4508), 2459 states have internal predecessors, (4508), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 11:26:55,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4562 transitions. [2023-12-20 11:26:55,077 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4562 transitions. Word has length 171 [2023-12-20 11:26:55,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:26:55,077 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4562 transitions. [2023-12-20 11:26:55,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:26:55,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4562 transitions. [2023-12-20 11:26:55,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:26:55,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:26:55,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:55,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-20 11:26:55,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:26:55,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:26:55,087 INFO L85 PathProgramCache]: Analyzing trace with hash 16739435, now seen corresponding path program 1 times [2023-12-20 11:26:55,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:26:55,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567538685] [2023-12-20 11:26:55,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:26:55,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:26:55,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:55,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:26:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:26:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:55,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:26:55,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:26:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:26:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:55,472 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 11:26:55,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:26:55,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567538685] [2023-12-20 11:26:55,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567538685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:26:55,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:26:55,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-20 11:26:55,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082559989] [2023-12-20 11:26:55,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:26:55,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-20 11:26:55,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:26:55,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-20 11:26:55,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-20 11:26:55,476 INFO L87 Difference]: Start difference. First operand 2492 states and 4562 transitions. Second operand has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:26:57,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:26:57,436 INFO L93 Difference]: Finished difference Result 2990 states and 5392 transitions. [2023-12-20 11:26:57,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-20 11:26:57,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:26:57,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:26:57,457 INFO L225 Difference]: With dead ends: 2990 [2023-12-20 11:26:57,457 INFO L226 Difference]: Without dead ends: 2634 [2023-12-20 11:26:57,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-20 11:26:57,461 INFO L413 NwaCegarLoop]: 4272 mSDtfsCounter, 1036 mSDsluCounter, 12217 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 1195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:26:57,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1061 Valid, 16489 Invalid, 1195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1137 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-20 11:26:57,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2023-12-20 11:26:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2492. [2023-12-20 11:26:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8343508343508343) internal successors, (4507), 2459 states have internal predecessors, (4507), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-20 11:26:57,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4561 transitions. [2023-12-20 11:26:57,531 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4561 transitions. Word has length 171 [2023-12-20 11:26:57,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:26:57,531 INFO L495 AbstractCegarLoop]: Abstraction has 2492 states and 4561 transitions. [2023-12-20 11:26:57,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.2) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:26:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4561 transitions. [2023-12-20 11:26:57,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:26:57,533 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:26:57,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:57,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-20 11:26:57,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:26:57,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:26:57,534 INFO L85 PathProgramCache]: Analyzing trace with hash 628008493, now seen corresponding path program 1 times [2023-12-20 11:26:57,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:26:57,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340111491] [2023-12-20 11:26:57,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:26:57,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:26:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:57,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:26:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:26:57,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:57,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:26:57,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:57,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:26:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:57,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:26:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:26:57,794 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 11:26:57,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:26:57,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340111491] [2023-12-20 11:26:57,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340111491] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:26:57,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:26:57,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-20 11:26:57,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903202942] [2023-12-20 11:26:57,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:26:57,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-20 11:26:57,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:26:57,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-20 11:26:57,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-20 11:26:57,796 INFO L87 Difference]: Start difference. First operand 2492 states and 4561 transitions. Second operand has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:01,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:01,030 INFO L93 Difference]: Finished difference Result 3501 states and 6249 transitions. [2023-12-20 11:27:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-20 11:27:01,031 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:01,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:01,043 INFO L225 Difference]: With dead ends: 3501 [2023-12-20 11:27:01,044 INFO L226 Difference]: Without dead ends: 3149 [2023-12-20 11:27:01,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:01,049 INFO L413 NwaCegarLoop]: 4238 mSDtfsCounter, 5542 mSDsluCounter, 12708 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 16946 SdHoareTripleChecker+Invalid, 2578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:01,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 16946 Invalid, 2578 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [112 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-20 11:27:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3149 states. [2023-12-20 11:27:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3149 to 2866. [2023-12-20 11:27:01,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2802 states have (on average 1.8115631691648821) internal successors, (5076), 2805 states have internal predecessors, (5076), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-20 11:27:01,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 5177 transitions. [2023-12-20 11:27:01,113 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 5177 transitions. Word has length 171 [2023-12-20 11:27:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:01,113 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 5177 transitions. [2023-12-20 11:27:01,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.833333333333332) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:01,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 5177 transitions. [2023-12-20 11:27:01,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:01,115 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:01,115 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:01,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 11:27:01,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:01,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:01,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1907357233, now seen corresponding path program 1 times [2023-12-20 11:27:01,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:01,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769869877] [2023-12-20 11:27:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:01,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:01,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:01,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:01,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:01,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:01,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:01,375 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 11:27:01,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:01,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769869877] [2023-12-20 11:27:01,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769869877] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:01,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:01,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:01,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15384089] [2023-12-20 11:27:01,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:01,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:01,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:01,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:01,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:01,379 INFO L87 Difference]: Start difference. First operand 2866 states and 5177 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:05,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:05,315 INFO L93 Difference]: Finished difference Result 4412 states and 7765 transitions. [2023-12-20 11:27:05,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:27:05,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:05,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:05,327 INFO L225 Difference]: With dead ends: 4412 [2023-12-20 11:27:05,327 INFO L226 Difference]: Without dead ends: 3686 [2023-12-20 11:27:05,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:27:05,330 INFO L413 NwaCegarLoop]: 4449 mSDtfsCounter, 5591 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3997 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5611 SdHoareTripleChecker+Valid, 21912 SdHoareTripleChecker+Invalid, 4060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:05,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5611 Valid, 21912 Invalid, 4060 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3997 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-20 11:27:05,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2023-12-20 11:27:05,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3211. [2023-12-20 11:27:05,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.7918537524053881) internal successors, (5587), 3122 states have internal predecessors, (5587), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-20 11:27:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5734 transitions. [2023-12-20 11:27:05,400 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5734 transitions. Word has length 171 [2023-12-20 11:27:05,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:05,400 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5734 transitions. [2023-12-20 11:27:05,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:05,400 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5734 transitions. [2023-12-20 11:27:05,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:05,402 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:05,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:05,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-20 11:27:05,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:05,403 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:05,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1642709743, now seen corresponding path program 1 times [2023-12-20 11:27:05,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:05,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969191090] [2023-12-20 11:27:05,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:05,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:05,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:05,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:05,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:05,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:05,693 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 11:27:05,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:05,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969191090] [2023-12-20 11:27:05,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969191090] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:05,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:05,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:05,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372710258] [2023-12-20 11:27:05,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:05,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:05,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:05,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:05,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:05,717 INFO L87 Difference]: Start difference. First operand 3211 states and 5734 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:07,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:07,507 INFO L93 Difference]: Finished difference Result 4777 states and 8368 transitions. [2023-12-20 11:27:07,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:27:07,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:07,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:07,522 INFO L225 Difference]: With dead ends: 4777 [2023-12-20 11:27:07,523 INFO L226 Difference]: Without dead ends: 3706 [2023-12-20 11:27:07,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:07,530 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5278 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1847 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5299 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:07,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5299 Valid, 16750 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1847 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:27:07,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2023-12-20 11:27:07,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 3211. [2023-12-20 11:27:07,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.790891597177678) internal successors, (5584), 3122 states have internal predecessors, (5584), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-20 11:27:07,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5731 transitions. [2023-12-20 11:27:07,623 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5731 transitions. Word has length 171 [2023-12-20 11:27:07,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:07,623 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5731 transitions. [2023-12-20 11:27:07,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:07,624 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5731 transitions. [2023-12-20 11:27:07,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:07,626 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:07,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:07,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-20 11:27:07,626 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:07,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:07,627 INFO L85 PathProgramCache]: Analyzing trace with hash 319530797, now seen corresponding path program 1 times [2023-12-20 11:27:07,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:07,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188000697] [2023-12-20 11:27:07,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:07,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:07,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:07,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:07,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:07,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:07,875 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 11:27:07,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:07,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188000697] [2023-12-20 11:27:07,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188000697] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:07,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:07,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:07,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959038090] [2023-12-20 11:27:07,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:07,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:07,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:07,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:07,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:07,878 INFO L87 Difference]: Start difference. First operand 3211 states and 5731 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:09,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:09,566 INFO L93 Difference]: Finished difference Result 4773 states and 8351 transitions. [2023-12-20 11:27:09,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:27:09,567 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:09,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:09,580 INFO L225 Difference]: With dead ends: 4773 [2023-12-20 11:27:09,580 INFO L226 Difference]: Without dead ends: 3702 [2023-12-20 11:27:09,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:09,590 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5276 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1833 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5297 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:09,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5297 Valid, 16750 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1833 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 11:27:09,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3702 states. [2023-12-20 11:27:09,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3702 to 3211. [2023-12-20 11:27:09,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.7899294419499678) internal successors, (5581), 3122 states have internal predecessors, (5581), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-20 11:27:09,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5728 transitions. [2023-12-20 11:27:09,675 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5728 transitions. Word has length 171 [2023-12-20 11:27:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:09,675 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5728 transitions. [2023-12-20 11:27:09,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5728 transitions. [2023-12-20 11:27:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:09,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:09,678 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:09,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-20 11:27:09,678 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:09,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:09,678 INFO L85 PathProgramCache]: Analyzing trace with hash -2078457041, now seen corresponding path program 1 times [2023-12-20 11:27:09,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:09,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525281710] [2023-12-20 11:27:09,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:09,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:09,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:09,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:09,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:09,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:09,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:09,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:09,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:09,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:09,988 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 11:27:09,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:09,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525281710] [2023-12-20 11:27:09,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525281710] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:09,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:09,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:09,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760872815] [2023-12-20 11:27:09,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:09,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:09,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:09,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:09,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:09,990 INFO L87 Difference]: Start difference. First operand 3211 states and 5728 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:11,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:11,748 INFO L93 Difference]: Finished difference Result 4769 states and 8334 transitions. [2023-12-20 11:27:11,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:27:11,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:11,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:11,760 INFO L225 Difference]: With dead ends: 4769 [2023-12-20 11:27:11,760 INFO L226 Difference]: Without dead ends: 3698 [2023-12-20 11:27:11,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:11,764 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5111 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 2015 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5132 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 2015 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:11,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5132 Valid, 20880 Invalid, 2082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 2015 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:27:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3698 states. [2023-12-20 11:27:11,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3698 to 3211. [2023-12-20 11:27:11,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3211 states, 3118 states have (on average 1.788967286722258) internal successors, (5578), 3122 states have internal predecessors, (5578), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-20 11:27:11,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3211 states to 3211 states and 5725 transitions. [2023-12-20 11:27:11,827 INFO L78 Accepts]: Start accepts. Automaton has 3211 states and 5725 transitions. Word has length 171 [2023-12-20 11:27:11,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:11,827 INFO L495 AbstractCegarLoop]: Abstraction has 3211 states and 5725 transitions. [2023-12-20 11:27:11,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:11,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3211 states and 5725 transitions. [2023-12-20 11:27:11,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:11,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:11,829 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:11,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-20 11:27:11,829 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:11,829 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:11,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1740169491, now seen corresponding path program 1 times [2023-12-20 11:27:11,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:11,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849763381] [2023-12-20 11:27:11,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:11,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:11,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:11,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:12,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:12,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:12,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:12,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:12,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:12,022 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 11:27:12,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:12,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849763381] [2023-12-20 11:27:12,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849763381] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:12,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:12,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:12,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735088114] [2023-12-20 11:27:12,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:12,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:12,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:12,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:12,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:12,023 INFO L87 Difference]: Start difference. First operand 3211 states and 5725 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:14,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:14,991 INFO L93 Difference]: Finished difference Result 5735 states and 9906 transitions. [2023-12-20 11:27:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:27:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:14,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:15,010 INFO L225 Difference]: With dead ends: 5735 [2023-12-20 11:27:15,011 INFO L226 Difference]: Without dead ends: 4664 [2023-12-20 11:27:15,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:27:15,016 INFO L413 NwaCegarLoop]: 4247 mSDtfsCounter, 5674 mSDsluCounter, 16920 mSDsCounter, 0 mSdLazyCounter, 3255 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5694 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 3255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:15,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5694 Valid, 21167 Invalid, 3358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [103 Valid, 3255 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-20 11:27:15,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4664 states. [2023-12-20 11:27:15,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4664 to 3914. [2023-12-20 11:27:15,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3763 states have (on average 1.7573744352909912) internal successors, (6613), 3769 states have internal predecessors, (6613), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-20 11:27:15,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 6856 transitions. [2023-12-20 11:27:15,105 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 6856 transitions. Word has length 171 [2023-12-20 11:27:15,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:15,106 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 6856 transitions. [2023-12-20 11:27:15,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:15,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 6856 transitions. [2023-12-20 11:27:15,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:15,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:15,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:15,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-20 11:27:15,108 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:15,109 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:15,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1313614993, now seen corresponding path program 1 times [2023-12-20 11:27:15,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:15,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115597629] [2023-12-20 11:27:15,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:15,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:15,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:15,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:15,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:15,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:15,354 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 11:27:15,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:15,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115597629] [2023-12-20 11:27:15,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115597629] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:15,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:15,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:15,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155030121] [2023-12-20 11:27:15,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:15,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:15,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:15,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:15,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:15,356 INFO L87 Difference]: Start difference. First operand 3914 states and 6856 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:17,237 INFO L93 Difference]: Finished difference Result 6425 states and 11025 transitions. [2023-12-20 11:27:17,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:27:17,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:17,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:17,248 INFO L225 Difference]: With dead ends: 6425 [2023-12-20 11:27:17,248 INFO L226 Difference]: Without dead ends: 4651 [2023-12-20 11:27:17,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:17,253 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5110 mSDsluCounter, 16655 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5131 SdHoareTripleChecker+Valid, 20880 SdHoareTripleChecker+Invalid, 2056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:17,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5131 Valid, 20880 Invalid, 2056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-20 11:27:17,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2023-12-20 11:27:17,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 3914. [2023-12-20 11:27:17,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3914 states, 3763 states have (on average 1.7560457082115333) internal successors, (6608), 3769 states have internal predecessors, (6608), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-20 11:27:17,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 6851 transitions. [2023-12-20 11:27:17,339 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 6851 transitions. Word has length 171 [2023-12-20 11:27:17,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:17,339 INFO L495 AbstractCegarLoop]: Abstraction has 3914 states and 6851 transitions. [2023-12-20 11:27:17,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:17,340 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 6851 transitions. [2023-12-20 11:27:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:17,341 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:17,341 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:17,342 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-20 11:27:17,342 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:17,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:17,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1854044499, now seen corresponding path program 1 times [2023-12-20 11:27:17,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:17,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46018250] [2023-12-20 11:27:17,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:17,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:17,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:17,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:17,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:17,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:17,572 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 11:27:17,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:17,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46018250] [2023-12-20 11:27:17,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46018250] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:17,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:17,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:17,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813752823] [2023-12-20 11:27:17,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:17,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:17,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:17,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:17,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:17,573 INFO L87 Difference]: Start difference. First operand 3914 states and 6851 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:20,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:20,853 INFO L93 Difference]: Finished difference Result 8296 states and 14053 transitions. [2023-12-20 11:27:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:27:20,853 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:20,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:20,868 INFO L225 Difference]: With dead ends: 8296 [2023-12-20 11:27:20,868 INFO L226 Difference]: Without dead ends: 6522 [2023-12-20 11:27:20,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:27:20,873 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5556 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3863 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3863 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:20,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 21910 Invalid, 3928 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3863 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-20 11:27:20,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2023-12-20 11:27:20,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 5320. [2023-12-20 11:27:20,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5320 states, 5053 states have (on average 1.7154165842074016) internal successors, (8668), 5063 states have internal predecessors, (8668), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-20 11:27:20,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5320 states to 5320 states and 9109 transitions. [2023-12-20 11:27:20,999 INFO L78 Accepts]: Start accepts. Automaton has 5320 states and 9109 transitions. Word has length 171 [2023-12-20 11:27:20,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:20,999 INFO L495 AbstractCegarLoop]: Abstraction has 5320 states and 9109 transitions. [2023-12-20 11:27:20,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:20,999 INFO L276 IsEmpty]: Start isEmpty. Operand 5320 states and 9109 transitions. [2023-12-20 11:27:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:21,001 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:21,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:21,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-20 11:27:21,002 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:21,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash -2010025041, now seen corresponding path program 1 times [2023-12-20 11:27:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:21,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120971240] [2023-12-20 11:27:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:21,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:21,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:21,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:21,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:21,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:21,221 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 11:27:21,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:21,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120971240] [2023-12-20 11:27:21,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120971240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:21,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:21,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:21,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343277413] [2023-12-20 11:27:21,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:21,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:21,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:21,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:21,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:21,222 INFO L87 Difference]: Start difference. First operand 5320 states and 9109 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:24,519 INFO L93 Difference]: Finished difference Result 13424 states and 22401 transitions. [2023-12-20 11:27:24,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:27:24,519 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:24,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:24,545 INFO L225 Difference]: With dead ends: 13424 [2023-12-20 11:27:24,545 INFO L226 Difference]: Without dead ends: 10244 [2023-12-20 11:27:24,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:27:24,555 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5561 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3845 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5581 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:24,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5581 Valid, 21910 Invalid, 3910 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3845 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-20 11:27:24,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10244 states. [2023-12-20 11:27:24,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10244 to 8137. [2023-12-20 11:27:24,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6750458235140089) internal successors, (12794), 7656 states have internal predecessors, (12794), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-20 11:27:24,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13649 transitions. [2023-12-20 11:27:24,884 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13649 transitions. Word has length 171 [2023-12-20 11:27:24,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:24,884 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13649 transitions. [2023-12-20 11:27:24,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:24,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13649 transitions. [2023-12-20 11:27:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:24,889 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:24,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:24,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-20 11:27:24,889 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:24,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:24,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1599414675, now seen corresponding path program 1 times [2023-12-20 11:27:24,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:24,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510438239] [2023-12-20 11:27:24,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:24,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:24,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:25,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:25,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:25,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:25,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:25,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:25,115 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 11:27:25,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:25,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510438239] [2023-12-20 11:27:25,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510438239] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:25,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:25,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:25,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045849055] [2023-12-20 11:27:25,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:25,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:25,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:25,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:25,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:25,116 INFO L87 Difference]: Start difference. First operand 8137 states and 13649 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:26,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:26,806 INFO L93 Difference]: Finished difference Result 16315 states and 27158 transitions. [2023-12-20 11:27:26,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:27:26,806 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:26,831 INFO L225 Difference]: With dead ends: 16315 [2023-12-20 11:27:26,832 INFO L226 Difference]: Without dead ends: 10318 [2023-12-20 11:27:26,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:26,851 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5277 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5298 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:26,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5298 Valid, 16750 Invalid, 1850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-20 11:27:26,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10318 states. [2023-12-20 11:27:27,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10318 to 8137. [2023-12-20 11:27:27,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6728201099764337) internal successors, (12777), 7656 states have internal predecessors, (12777), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-20 11:27:27,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13632 transitions. [2023-12-20 11:27:27,094 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13632 transitions. Word has length 171 [2023-12-20 11:27:27,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:27,095 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13632 transitions. [2023-12-20 11:27:27,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:27,096 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13632 transitions. [2023-12-20 11:27:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:27,099 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:27,099 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:27,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-20 11:27:27,099 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:27,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:27,100 INFO L85 PathProgramCache]: Analyzing trace with hash 559669419, now seen corresponding path program 1 times [2023-12-20 11:27:27,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:27,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466701855] [2023-12-20 11:27:27,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:27,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:27,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:27,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:27,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:27,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:27,297 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 11:27:27,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:27,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466701855] [2023-12-20 11:27:27,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466701855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:27,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:27,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:27,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117567606] [2023-12-20 11:27:27,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:27,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:27,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:27,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:27,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:27,299 INFO L87 Difference]: Start difference. First operand 8137 states and 13632 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:29,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:29,169 INFO L93 Difference]: Finished difference Result 16297 states and 27071 transitions. [2023-12-20 11:27:29,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-20 11:27:29,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:29,196 INFO L225 Difference]: With dead ends: 16297 [2023-12-20 11:27:29,196 INFO L226 Difference]: Without dead ends: 10300 [2023-12-20 11:27:29,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-20 11:27:29,212 INFO L413 NwaCegarLoop]: 4225 mSDtfsCounter, 5275 mSDsluCounter, 12525 mSDsCounter, 0 mSdLazyCounter, 1742 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5296 SdHoareTripleChecker+Valid, 16750 SdHoareTripleChecker+Invalid, 1836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 1742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:29,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5296 Valid, 16750 Invalid, 1836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 1742 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-20 11:27:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10300 states. [2023-12-20 11:27:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10300 to 8137. [2023-12-20 11:27:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8137 states, 7638 states have (on average 1.6705943964388583) internal successors, (12760), 7656 states have internal predecessors, (12760), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-20 11:27:29,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8137 states to 8137 states and 13615 transitions. [2023-12-20 11:27:29,462 INFO L78 Accepts]: Start accepts. Automaton has 8137 states and 13615 transitions. Word has length 171 [2023-12-20 11:27:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:29,463 INFO L495 AbstractCegarLoop]: Abstraction has 8137 states and 13615 transitions. [2023-12-20 11:27:29,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 8137 states and 13615 transitions. [2023-12-20 11:27:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:29,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:29,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:29,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-20 11:27:29,468 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:29,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:29,468 INFO L85 PathProgramCache]: Analyzing trace with hash 629317293, now seen corresponding path program 1 times [2023-12-20 11:27:29,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:29,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910152788] [2023-12-20 11:27:29,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:29,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:29,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:29,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:29,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:29,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 11:27:29,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:29,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910152788] [2023-12-20 11:27:29,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910152788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:29,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:29,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:29,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920317122] [2023-12-20 11:27:29,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:29,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:29,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:29,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:29,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:29,680 INFO L87 Difference]: Start difference. First operand 8137 states and 13615 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:33,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:33,820 INFO L93 Difference]: Finished difference Result 23625 states and 38879 transitions. [2023-12-20 11:27:33,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-20 11:27:33,821 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:33,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:33,923 INFO L225 Difference]: With dead ends: 23625 [2023-12-20 11:27:33,923 INFO L226 Difference]: Without dead ends: 17628 [2023-12-20 11:27:33,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-20 11:27:33,956 INFO L413 NwaCegarLoop]: 4447 mSDtfsCounter, 5542 mSDsluCounter, 17463 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5562 SdHoareTripleChecker+Valid, 21910 SdHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:33,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5562 Valid, 21910 Invalid, 3833 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [65 Valid, 3768 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-20 11:27:33,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17628 states. [2023-12-20 11:27:34,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17628 to 13837. [2023-12-20 11:27:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13837 states, 12874 states have (on average 1.6367873232872456) internal successors, (21072), 12908 states have internal predecessors, (21072), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-20 11:27:34,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13837 states to 13837 states and 22809 transitions. [2023-12-20 11:27:34,444 INFO L78 Accepts]: Start accepts. Automaton has 13837 states and 22809 transitions. Word has length 171 [2023-12-20 11:27:34,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:34,444 INFO L495 AbstractCegarLoop]: Abstraction has 13837 states and 22809 transitions. [2023-12-20 11:27:34,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:34,444 INFO L276 IsEmpty]: Start isEmpty. Operand 13837 states and 22809 transitions. [2023-12-20 11:27:34,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:34,451 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:34,451 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:34,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-20 11:27:34,451 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:34,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:34,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1047205995, now seen corresponding path program 1 times [2023-12-20 11:27:34,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:34,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444672488] [2023-12-20 11:27:34,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:34,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:34,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:34,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:34,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:34,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:34,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:34,676 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 11:27:34,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:34,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444672488] [2023-12-20 11:27:34,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444672488] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:34,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:34,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:34,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329239224] [2023-12-20 11:27:34,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:34,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:34,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:34,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:34,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:34,678 INFO L87 Difference]: Start difference. First operand 13837 states and 22809 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:39,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:39,017 INFO L93 Difference]: Finished difference Result 49515 states and 81069 transitions. [2023-12-20 11:27:39,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:27:39,017 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:39,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:39,117 INFO L225 Difference]: With dead ends: 49515 [2023-12-20 11:27:39,117 INFO L226 Difference]: Without dead ends: 37818 [2023-12-20 11:27:39,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:27:39,155 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 6106 mSDsluCounter, 16918 mSDsCounter, 0 mSdLazyCounter, 3161 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6140 SdHoareTripleChecker+Valid, 21167 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 3161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:39,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6140 Valid, 21167 Invalid, 3267 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [106 Valid, 3161 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2023-12-20 11:27:39,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37818 states. [2023-12-20 11:27:40,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37818 to 25198. [2023-12-20 11:27:40,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25198 states, 23339 states have (on average 1.6152362997557737) internal successors, (37698), 23405 states have internal predecessors, (37698), 1403 states have call successors, (1403), 390 states have call predecessors, (1403), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-20 11:27:40,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25198 states to 25198 states and 41297 transitions. [2023-12-20 11:27:40,274 INFO L78 Accepts]: Start accepts. Automaton has 25198 states and 41297 transitions. Word has length 171 [2023-12-20 11:27:40,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:40,274 INFO L495 AbstractCegarLoop]: Abstraction has 25198 states and 41297 transitions. [2023-12-20 11:27:40,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:40,274 INFO L276 IsEmpty]: Start isEmpty. Operand 25198 states and 41297 transitions. [2023-12-20 11:27:40,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:40,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:40,285 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:40,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-20 11:27:40,285 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:40,286 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:40,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1848807699, now seen corresponding path program 1 times [2023-12-20 11:27:40,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:40,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323189749] [2023-12-20 11:27:40,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:40,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:40,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:40,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:40,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:40,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:40,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:40,485 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 11:27:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:40,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323189749] [2023-12-20 11:27:40,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323189749] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:40,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:40,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:40,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679589050] [2023-12-20 11:27:40,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:40,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:40,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:40,488 INFO L87 Difference]: Start difference. First operand 25198 states and 41297 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:46,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:46,080 INFO L93 Difference]: Finished difference Result 95018 states and 155923 transitions. [2023-12-20 11:27:46,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:27:46,081 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:46,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:46,286 INFO L225 Difference]: With dead ends: 95018 [2023-12-20 11:27:46,286 INFO L226 Difference]: Without dead ends: 71960 [2023-12-20 11:27:46,357 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:27:46,358 INFO L413 NwaCegarLoop]: 4444 mSDtfsCounter, 5649 mSDsluCounter, 17455 mSDsCounter, 0 mSdLazyCounter, 4464 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5668 SdHoareTripleChecker+Valid, 21899 SdHoareTripleChecker+Invalid, 4531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:46,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5668 Valid, 21899 Invalid, 4531 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4464 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-20 11:27:46,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71960 states. [2023-12-20 11:27:48,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71960 to 47599. [2023-12-20 11:27:48,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47599 states, 43980 states have (on average 1.6030013642564802) internal successors, (70500), 44110 states have internal predecessors, (70500), 2715 states have call successors, (2715), 774 states have call predecessors, (2715), 902 states have return successors, (5030), 2842 states have call predecessors, (5030), 2715 states have call successors, (5030) [2023-12-20 11:27:48,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47599 states to 47599 states and 78245 transitions. [2023-12-20 11:27:48,808 INFO L78 Accepts]: Start accepts. Automaton has 47599 states and 78245 transitions. Word has length 171 [2023-12-20 11:27:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:27:48,809 INFO L495 AbstractCegarLoop]: Abstraction has 47599 states and 78245 transitions. [2023-12-20 11:27:48,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:48,809 INFO L276 IsEmpty]: Start isEmpty. Operand 47599 states and 78245 transitions. [2023-12-20 11:27:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:27:48,830 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:27:48,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:27:48,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-20 11:27:48,830 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:27:48,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:27:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash 828719147, now seen corresponding path program 1 times [2023-12-20 11:27:48,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:27:48,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403672355] [2023-12-20 11:27:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:27:48,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:27:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:48,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:27:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:48,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:27:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:27:49,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:27:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:49,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:27:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:27:49,072 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 11:27:49,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:27:49,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403672355] [2023-12-20 11:27:49,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403672355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:27:49,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:27:49,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:27:49,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938170240] [2023-12-20 11:27:49,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:27:49,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:27:49,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:27:49,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:27:49,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:27:49,074 INFO L87 Difference]: Start difference. First operand 47599 states and 78245 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:27:55,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:27:55,883 INFO L93 Difference]: Finished difference Result 184169 states and 304377 transitions. [2023-12-20 11:27:55,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:27:55,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:27:55,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:27:56,335 INFO L225 Difference]: With dead ends: 184169 [2023-12-20 11:27:56,335 INFO L226 Difference]: Without dead ends: 138710 [2023-12-20 11:27:56,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:27:56,454 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5938 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3719 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5972 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-12-20 11:27:56,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5972 Valid, 21903 Invalid, 3787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3719 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-12-20 11:27:56,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138710 states. [2023-12-20 11:28:00,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138710 to 92720. [2023-12-20 11:28:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92720 states, 85645 states have (on average 1.5966139295930877) internal successors, (136742), 85903 states have internal predecessors, (136742), 5275 states have call successors, (5275), 1542 states have call predecessors, (5275), 1798 states have return successors, (12092), 5530 states have call predecessors, (12092), 5275 states have call successors, (12092) [2023-12-20 11:28:01,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92720 states to 92720 states and 154109 transitions. [2023-12-20 11:28:01,081 INFO L78 Accepts]: Start accepts. Automaton has 92720 states and 154109 transitions. Word has length 171 [2023-12-20 11:28:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:28:01,081 INFO L495 AbstractCegarLoop]: Abstraction has 92720 states and 154109 transitions. [2023-12-20 11:28:01,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:28:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 92720 states and 154109 transitions. [2023-12-20 11:28:01,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:28:01,146 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:28:01,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:01,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-20 11:28:01,147 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:28:01,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:28:01,147 INFO L85 PathProgramCache]: Analyzing trace with hash 1192185645, now seen corresponding path program 1 times [2023-12-20 11:28:01,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:28:01,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190485489] [2023-12-20 11:28:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:28:01,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:28:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:28:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:01,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:28:01,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:28:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:28:01,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:01,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:28:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:01,582 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 11:28:01,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:28:01,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190485489] [2023-12-20 11:28:01,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190485489] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:28:01,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:28:01,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:28:01,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837055613] [2023-12-20 11:28:01,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:28:01,583 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:28:01,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:28:01,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:28:01,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:28:01,584 INFO L87 Difference]: Start difference. First operand 92720 states and 154109 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:28:12,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:28:12,945 INFO L93 Difference]: Finished difference Result 361384 states and 605199 transitions. [2023-12-20 11:28:12,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:28:12,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:28:12,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:28:13,937 INFO L225 Difference]: With dead ends: 361384 [2023-12-20 11:28:13,937 INFO L226 Difference]: Without dead ends: 270804 [2023-12-20 11:28:14,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:28:14,155 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5908 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3701 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5942 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:28:14,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5942 Valid, 21903 Invalid, 3769 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3701 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-20 11:28:14,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270804 states. [2023-12-20 11:28:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270804 to 182961. [2023-12-20 11:28:22,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182961 states, 169102 states have (on average 1.5935943986469705) internal successors, (269480), 169616 states have internal predecessors, (269480), 10267 states have call successors, (10267), 3078 states have call predecessors, (10267), 3590 states have return successors, (30462), 10778 states have call predecessors, (30462), 10267 states have call successors, (30462) [2023-12-20 11:28:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182961 states to 182961 states and 310209 transitions. [2023-12-20 11:28:23,515 INFO L78 Accepts]: Start accepts. Automaton has 182961 states and 310209 transitions. Word has length 171 [2023-12-20 11:28:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 11:28:23,515 INFO L495 AbstractCegarLoop]: Abstraction has 182961 states and 310209 transitions. [2023-12-20 11:28:23,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:28:23,515 INFO L276 IsEmpty]: Start isEmpty. Operand 182961 states and 310209 transitions. [2023-12-20 11:28:23,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-20 11:28:23,575 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 11:28:23,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:23,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-20 11:28:23,576 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 11:28:23,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 11:28:23,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1481005035, now seen corresponding path program 1 times [2023-12-20 11:28:23,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 11:28:23,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716000] [2023-12-20 11:28:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 11:28:23,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 11:28:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-20 11:28:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:23,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-20 11:28:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:23,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-20 11:28:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:23,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-20 11:28:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-20 11:28:23,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 11:28:23,781 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 11:28:23,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 11:28:23,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716000] [2023-12-20 11:28:23,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716000] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 11:28:23,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 11:28:23,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 11:28:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845497033] [2023-12-20 11:28:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 11:28:23,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-20 11:28:23,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 11:28:23,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-20 11:28:23,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-20 11:28:23,783 INFO L87 Difference]: Start difference. First operand 182961 states and 310209 transitions. Second operand has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-20 11:28:41,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 11:28:41,129 INFO L93 Difference]: Finished difference Result 705317 states and 1207441 transitions. [2023-12-20 11:28:41,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-20 11:28:41,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.0) internal successors, (161), 5 states have internal predecessors, (161), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 171 [2023-12-20 11:28:41,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 11:28:43,631 INFO L225 Difference]: With dead ends: 705317 [2023-12-20 11:28:43,631 INFO L226 Difference]: Without dead ends: 524496 [2023-12-20 11:28:44,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-20 11:28:44,333 INFO L413 NwaCegarLoop]: 4445 mSDtfsCounter, 5833 mSDsluCounter, 17458 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5867 SdHoareTripleChecker+Valid, 21903 SdHoareTripleChecker+Invalid, 3742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-20 11:28:44,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5867 Valid, 21903 Invalid, 3742 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 3674 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-20 11:28:44,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524496 states.