/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.13.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:32:57,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:32:57,183 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 17:32:57,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:32:57,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:32:57,201 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:32:57,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:32:57,202 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:32:57,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:32:57,206 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:32:57,206 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:32:57,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:32:57,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:32:57,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:32:57,208 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:32:57,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:32:57,208 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:32:57,209 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:32:57,209 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:32:57,209 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:32:57,209 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:32:57,209 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:32:57,210 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:32:57,210 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:32:57,210 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:32:57,210 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:32:57,210 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:32:57,211 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:32:57,211 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:32:57,211 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:32:57,212 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:32:57,212 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:32:57,212 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:32:57,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:32:57,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:32:57,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:32:57,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:32:57,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:32:57,213 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:32:57,213 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:32:57,214 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:32:57,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:32:57,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:32:57,214 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:32:57,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:32:57,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:32:57,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:32:57,422 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:32:57,422 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:32:57,423 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label42+token_ring.13.cil-1.c [2023-12-15 17:32:58,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:32:58,965 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:32:58,966 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label42+token_ring.13.cil-1.c [2023-12-15 17:32:59,009 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65deb1ae/5e22d6a990ca497da64108946b5c0323/FLAG75739b5e0 [2023-12-15 17:32:59,023 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e65deb1ae/5e22d6a990ca497da64108946b5c0323 [2023-12-15 17:32:59,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:32:59,027 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:32:59,030 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:32:59,030 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:32:59,033 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:32:59,034 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:32:59" (1/1) ... [2023-12-15 17:32:59,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34a4c335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:32:59, skipping insertion in model container [2023-12-15 17:32:59,035 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:32:59" (1/1) ... [2023-12-15 17:32:59,194 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:33:00,396 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_label42+token_ring.13.cil-1.c[378560,378573] [2023-12-15 17:33:00,421 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_label42+token_ring.13.cil-1.c[383339,383352] [2023-12-15 17:33:00,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:33:00,671 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:33:01,257 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_label42+token_ring.13.cil-1.c[378560,378573] [2023-12-15 17:33:01,262 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_label42+token_ring.13.cil-1.c[383339,383352] [2023-12-15 17:33:01,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:33:01,328 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:33:01,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01 WrapperNode [2023-12-15 17:33:01,331 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:33:01,331 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:33:01,332 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:33:01,332 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:33:01,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:01,401 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:01,667 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13299 [2023-12-15 17:33:01,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:33:01,668 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:33:01,668 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:33:01,668 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:33:01,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:01,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:01,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:01,882 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 17:33:01,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:01,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:02,035 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:02,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:02,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:02,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:02,159 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:33:02,160 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:33:02,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:33:02,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:33:02,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (1/1) ... [2023-12-15 17:33:02,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:33:02,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:33:02,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 17:33:02,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 17:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:33:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:33:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:33:02,236 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:33:02,236 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-15 17:33:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-15 17:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:33:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:33:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:33:02,237 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:33:02,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:33:02,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:33:02,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:33:02,416 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:33:02,418 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:33:08,034 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:33:08,195 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:33:08,195 INFO L309 CfgBuilder]: Removed 17 assume(true) statements. [2023-12-15 17:33:08,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:33:08 BoogieIcfgContainer [2023-12-15 17:33:08,196 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:33:08,199 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:33:08,200 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:33:08,202 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:33:08,202 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:32:59" (1/3) ... [2023-12-15 17:33:08,216 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b6a1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:33:08, skipping insertion in model container [2023-12-15 17:33:08,216 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:33:01" (2/3) ... [2023-12-15 17:33:08,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b6a1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:33:08, skipping insertion in model container [2023-12-15 17:33:08,217 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:33:08" (3/3) ... [2023-12-15 17:33:08,218 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label42+token_ring.13.cil-1.c [2023-12-15 17:33:08,229 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:33:08,229 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:33:08,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:33:08,352 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;@30427a26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:33:08,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:33:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 2502 states, 2463 states have (on average 1.8749492488834754) internal successors, (4618), 2468 states have internal predecessors, (4618), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-15 17:33:08,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:08,410 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:08,411 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, 1] [2023-12-15 17:33:08,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:08,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1515815092, now seen corresponding path program 1 times [2023-12-15 17:33:08,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:08,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743532299] [2023-12-15 17:33:08,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:08,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:08,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:09,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:09,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:09,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:09,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:09,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:09,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743532299] [2023-12-15 17:33:09,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743532299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:09,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:09,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:33:09,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719070731] [2023-12-15 17:33:09,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:09,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:33:09,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:09,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:33:09,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:33:09,333 INFO L87 Difference]: Start difference. First operand has 2502 states, 2463 states have (on average 1.8749492488834754) internal successors, (4618), 2468 states have internal predecessors, (4618), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:11,286 INFO L93 Difference]: Finished difference Result 5137 states and 9590 transitions. [2023-12-15 17:33:11,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:33:11,288 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:11,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:11,308 INFO L225 Difference]: With dead ends: 5137 [2023-12-15 17:33:11,308 INFO L226 Difference]: Without dead ends: 2637 [2023-12-15 17:33:11,317 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 [2023-12-15 17:33:11,321 INFO L413 NwaCegarLoop]: 4287 mSDtfsCounter, 1062 mSDsluCounter, 12244 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 16531 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:11,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 16531 Invalid, 1211 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 1149 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:33:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2023-12-15 17:33:11,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2497. [2023-12-15 17:33:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2460 states have (on average 1.8357723577235772) internal successors, (4516), 2463 states have internal predecessors, (4516), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:33:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 4572 transitions. [2023-12-15 17:33:11,435 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 4572 transitions. Word has length 172 [2023-12-15 17:33:11,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:11,436 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 4572 transitions. [2023-12-15 17:33:11,436 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:11,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 4572 transitions. [2023-12-15 17:33:11,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:11,443 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:11,444 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, 1] [2023-12-15 17:33:11,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:33:11,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:11,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:11,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1017258290, now seen corresponding path program 1 times [2023-12-15 17:33:11,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:11,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265886595] [2023-12-15 17:33:11,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:11,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:11,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:11,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:11,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:11,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:11,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:11,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:11,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:11,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265886595] [2023-12-15 17:33:11,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265886595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:11,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:11,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:33:11,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332046116] [2023-12-15 17:33:11,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:11,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:33:11,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:11,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:33:11,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:33:11,669 INFO L87 Difference]: Start difference. First operand 2497 states and 4572 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:13,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:13,651 INFO L93 Difference]: Finished difference Result 2998 states and 5410 transitions. [2023-12-15 17:33:13,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:33:13,652 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:13,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:13,664 INFO L225 Difference]: With dead ends: 2998 [2023-12-15 17:33:13,664 INFO L226 Difference]: Without dead ends: 2637 [2023-12-15 17:33:13,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:33:13,668 INFO L413 NwaCegarLoop]: 4283 mSDtfsCounter, 1050 mSDsluCounter, 12235 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 16518 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:13,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 16518 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:33:13,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2637 states. [2023-12-15 17:33:13,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2637 to 2497. [2023-12-15 17:33:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2497 states, 2460 states have (on average 1.8353658536585367) internal successors, (4515), 2463 states have internal predecessors, (4515), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-15 17:33:13,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2497 states to 2497 states and 4571 transitions. [2023-12-15 17:33:13,727 INFO L78 Accepts]: Start accepts. Automaton has 2497 states and 4571 transitions. Word has length 172 [2023-12-15 17:33:13,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:13,729 INFO L495 AbstractCegarLoop]: Abstraction has 2497 states and 4571 transitions. [2023-12-15 17:33:13,729 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:13,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2497 states and 4571 transitions. [2023-12-15 17:33:13,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:13,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:13,731 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, 1] [2023-12-15 17:33:13,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:33:13,733 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:13,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1508237392, now seen corresponding path program 1 times [2023-12-15 17:33:13,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:13,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129908369] [2023-12-15 17:33:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:13,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:13,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:13,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:14,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:14,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:14,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:14,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:14,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:14,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:14,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129908369] [2023-12-15 17:33:14,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129908369] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:14,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:14,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:33:14,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879836758] [2023-12-15 17:33:14,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:14,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:33:14,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:14,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:33:14,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:33:14,226 INFO L87 Difference]: Start difference. First operand 2497 states and 4571 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:17,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:17,289 INFO L93 Difference]: Finished difference Result 3512 states and 6275 transitions. [2023-12-15 17:33:17,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:33:17,289 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:17,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:17,300 INFO L225 Difference]: With dead ends: 3512 [2023-12-15 17:33:17,300 INFO L226 Difference]: Without dead ends: 3155 [2023-12-15 17:33:17,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:33:17,307 INFO L413 NwaCegarLoop]: 4249 mSDtfsCounter, 5558 mSDsluCounter, 12746 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5578 SdHoareTripleChecker+Valid, 16995 SdHoareTripleChecker+Invalid, 2591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:17,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5578 Valid, 16995 Invalid, 2591 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2471 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 17:33:17,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3155 states. [2023-12-15 17:33:17,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3155 to 2874. [2023-12-15 17:33:17,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2874 states, 2808 states have (on average 1.8133903133903133) internal successors, (5092), 2812 states have internal predecessors, (5092), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2023-12-15 17:33:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2874 states to 2874 states and 5195 transitions. [2023-12-15 17:33:17,380 INFO L78 Accepts]: Start accepts. Automaton has 2874 states and 5195 transitions. Word has length 172 [2023-12-15 17:33:17,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:17,380 INFO L495 AbstractCegarLoop]: Abstraction has 2874 states and 5195 transitions. [2023-12-15 17:33:17,380 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 2874 states and 5195 transitions. [2023-12-15 17:33:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:17,382 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:17,382 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, 1] [2023-12-15 17:33:17,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:33:17,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:17,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:17,382 INFO L85 PathProgramCache]: Analyzing trace with hash -503132116, now seen corresponding path program 1 times [2023-12-15 17:33:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170500727] [2023-12-15 17:33:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:17,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:17,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:17,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:17,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170500727] [2023-12-15 17:33:17,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170500727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:17,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:17,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:17,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228051865] [2023-12-15 17:33:17,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:17,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:17,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:17,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:17,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:17,659 INFO L87 Difference]: Start difference. First operand 2874 states and 5195 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:21,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:21,743 INFO L93 Difference]: Finished difference Result 4427 states and 7805 transitions. [2023-12-15 17:33:21,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:21,757 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:21,793 INFO L225 Difference]: With dead ends: 4427 [2023-12-15 17:33:21,793 INFO L226 Difference]: Without dead ends: 3693 [2023-12-15 17:33:21,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:21,797 INFO L413 NwaCegarLoop]: 4471 mSDtfsCounter, 5605 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 4012 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5625 SdHoareTripleChecker+Valid, 22017 SdHoareTripleChecker+Invalid, 4079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:21,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5625 Valid, 22017 Invalid, 4079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [67 Valid, 4012 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-12-15 17:33:21,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3693 states. [2023-12-15 17:33:21,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3693 to 3222. [2023-12-15 17:33:21,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7943716021746083) internal successors, (5611), 3132 states have internal predecessors, (5611), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:33:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5760 transitions. [2023-12-15 17:33:21,909 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5760 transitions. Word has length 172 [2023-12-15 17:33:21,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:21,910 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5760 transitions. [2023-12-15 17:33:21,910 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5760 transitions. [2023-12-15 17:33:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:21,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:21,912 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, 1] [2023-12-15 17:33:21,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:33:21,912 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:21,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash -117269714, now seen corresponding path program 1 times [2023-12-15 17:33:21,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:21,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700688157] [2023-12-15 17:33:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:21,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:22,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:22,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:22,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:22,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:22,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:22,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700688157] [2023-12-15 17:33:22,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700688157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:22,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:22,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:22,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867354882] [2023-12-15 17:33:22,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:22,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:22,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:22,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:22,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:22,151 INFO L87 Difference]: Start difference. First operand 3222 states and 5760 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:24,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:24,115 INFO L93 Difference]: Finished difference Result 4793 states and 8414 transitions. [2023-12-15 17:33:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:24,116 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:24,128 INFO L225 Difference]: With dead ends: 4793 [2023-12-15 17:33:24,128 INFO L226 Difference]: Without dead ends: 3711 [2023-12-15 17:33:24,131 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 [2023-12-15 17:33:24,132 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5129 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5150 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:24,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5150 Valid, 20927 Invalid, 2122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2051 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:33:24,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3711 states. [2023-12-15 17:33:24,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3711 to 3222. [2023-12-15 17:33:24,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7934122161816437) internal successors, (5608), 3132 states have internal predecessors, (5608), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:33:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5757 transitions. [2023-12-15 17:33:24,218 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5757 transitions. Word has length 172 [2023-12-15 17:33:24,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:24,218 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5757 transitions. [2023-12-15 17:33:24,218 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:24,218 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5757 transitions. [2023-12-15 17:33:24,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:24,220 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:24,220 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, 1] [2023-12-15 17:33:24,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:33:24,221 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:24,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:24,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1813855920, now seen corresponding path program 1 times [2023-12-15 17:33:24,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:24,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089493054] [2023-12-15 17:33:24,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:24,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:24,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:24,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:24,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:24,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089493054] [2023-12-15 17:33:24,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089493054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:24,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:24,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:24,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473611491] [2023-12-15 17:33:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:24,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:24,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:24,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:24,436 INFO L87 Difference]: Start difference. First operand 3222 states and 5757 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:26,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:26,495 INFO L93 Difference]: Finished difference Result 4789 states and 8397 transitions. [2023-12-15 17:33:26,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:26,496 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:26,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:26,509 INFO L225 Difference]: With dead ends: 4789 [2023-12-15 17:33:26,509 INFO L226 Difference]: Without dead ends: 3707 [2023-12-15 17:33:26,513 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 [2023-12-15 17:33:26,514 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5127 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 2035 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5148 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:26,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5148 Valid, 20927 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2035 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:33:26,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3707 states. [2023-12-15 17:33:26,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3707 to 3222. [2023-12-15 17:33:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7924528301886793) internal successors, (5605), 3132 states have internal predecessors, (5605), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:33:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5754 transitions. [2023-12-15 17:33:26,605 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5754 transitions. Word has length 172 [2023-12-15 17:33:26,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:26,605 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5754 transitions. [2023-12-15 17:33:26,606 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:26,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5754 transitions. [2023-12-15 17:33:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:26,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:26,608 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, 1] [2023-12-15 17:33:26,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:33:26,608 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:26,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:26,608 INFO L85 PathProgramCache]: Analyzing trace with hash 490676974, now seen corresponding path program 1 times [2023-12-15 17:33:26,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:26,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741468199] [2023-12-15 17:33:26,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:26,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:26,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:26,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:26,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:26,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:26,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:26,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:26,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:26,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:26,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:26,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:26,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741468199] [2023-12-15 17:33:26,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741468199] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:26,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:26,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:26,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818233250] [2023-12-15 17:33:26,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:26,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:26,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:26,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:26,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:26,828 INFO L87 Difference]: Start difference. First operand 3222 states and 5754 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:28,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:28,826 INFO L93 Difference]: Finished difference Result 4785 states and 8380 transitions. [2023-12-15 17:33:28,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:28,826 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:28,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:28,838 INFO L225 Difference]: With dead ends: 4785 [2023-12-15 17:33:28,838 INFO L226 Difference]: Without dead ends: 3703 [2023-12-15 17:33:28,842 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 [2023-12-15 17:33:28,842 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5125 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 2019 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5146 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 2019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:28,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5146 Valid, 20927 Invalid, 2090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 2019 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-12-15 17:33:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3703 states. [2023-12-15 17:33:28,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3703 to 3222. [2023-12-15 17:33:28,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3222 states, 3127 states have (on average 1.7914934441957147) internal successors, (5602), 3132 states have internal predecessors, (5602), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2023-12-15 17:33:28,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3222 states to 3222 states and 5751 transitions. [2023-12-15 17:33:28,900 INFO L78 Accepts]: Start accepts. Automaton has 3222 states and 5751 transitions. Word has length 172 [2023-12-15 17:33:28,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:28,900 INFO L495 AbstractCegarLoop]: Abstraction has 3222 states and 5751 transitions. [2023-12-15 17:33:28,901 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:28,901 INFO L276 IsEmpty]: Start isEmpty. Operand 3222 states and 5751 transitions. [2023-12-15 17:33:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:28,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:28,902 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, 1] [2023-12-15 17:33:28,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:33:28,903 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:28,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1907310864, now seen corresponding path program 1 times [2023-12-15 17:33:28,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:28,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849416873] [2023-12-15 17:33:28,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:28,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:29,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:29,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:29,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:29,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:29,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:29,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:29,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849416873] [2023-12-15 17:33:29,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849416873] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:29,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:29,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:29,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340864112] [2023-12-15 17:33:29,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:29,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:29,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:29,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:29,108 INFO L87 Difference]: Start difference. First operand 3222 states and 5751 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:32,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:32,508 INFO L93 Difference]: Finished difference Result 5755 states and 9966 transitions. [2023-12-15 17:33:32,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:32,509 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:32,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:32,523 INFO L225 Difference]: With dead ends: 5755 [2023-12-15 17:33:32,523 INFO L226 Difference]: Without dead ends: 4673 [2023-12-15 17:33:32,526 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 [2023-12-15 17:33:32,527 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 5690 mSDsluCounter, 16967 mSDsCounter, 0 mSdLazyCounter, 3263 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5710 SdHoareTripleChecker+Valid, 21225 SdHoareTripleChecker+Invalid, 3374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 3263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:32,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5710 Valid, 21225 Invalid, 3374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 3263 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 17:33:32,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4673 states. [2023-12-15 17:33:32,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4673 to 3931. [2023-12-15 17:33:32,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3778 states have (on average 1.7609846479618847) internal successors, (6653), 3785 states have internal predecessors, (6653), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-15 17:33:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6898 transitions. [2023-12-15 17:33:32,614 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6898 transitions. Word has length 172 [2023-12-15 17:33:32,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:32,614 INFO L495 AbstractCegarLoop]: Abstraction has 3931 states and 6898 transitions. [2023-12-15 17:33:32,614 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:32,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6898 transitions. [2023-12-15 17:33:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:32,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:32,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:33:32,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:33:32,616 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:32,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:32,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1569023314, now seen corresponding path program 1 times [2023-12-15 17:33:32,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:32,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387741686] [2023-12-15 17:33:32,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:32,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:32,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:32,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:32,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:32,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:32,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387741686] [2023-12-15 17:33:32,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387741686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:32,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:32,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:32,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118425082] [2023-12-15 17:33:32,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:32,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:32,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:32,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:32,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:32,826 INFO L87 Difference]: Start difference. First operand 3931 states and 6898 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:34,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:34,800 INFO L93 Difference]: Finished difference Result 6449 states and 11099 transitions. [2023-12-15 17:33:34,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:34,800 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:34,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:34,813 INFO L225 Difference]: With dead ends: 6449 [2023-12-15 17:33:34,813 INFO L226 Difference]: Without dead ends: 4658 [2023-12-15 17:33:34,818 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 [2023-12-15 17:33:34,818 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5124 mSDsluCounter, 16691 mSDsCounter, 0 mSdLazyCounter, 1993 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5145 SdHoareTripleChecker+Valid, 20927 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:34,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5145 Valid, 20927 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1993 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:33:34,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2023-12-15 17:33:34,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 3931. [2023-12-15 17:33:34,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3931 states, 3778 states have (on average 1.7596611964002118) internal successors, (6648), 3785 states have internal predecessors, (6648), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2023-12-15 17:33:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3931 states to 3931 states and 6893 transitions. [2023-12-15 17:33:34,906 INFO L78 Accepts]: Start accepts. Automaton has 3931 states and 6893 transitions. Word has length 172 [2023-12-15 17:33:34,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:34,906 INFO L495 AbstractCegarLoop]: Abstraction has 3931 states and 6893 transitions. [2023-12-15 17:33:34,907 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:34,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3931 states and 6893 transitions. [2023-12-15 17:33:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:34,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:34,910 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, 1] [2023-12-15 17:33:34,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:33:34,910 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:34,910 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:34,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1142468816, now seen corresponding path program 1 times [2023-12-15 17:33:34,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:34,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49657465] [2023-12-15 17:33:34,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:34,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:34,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:35,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:35,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:35,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:35,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49657465] [2023-12-15 17:33:35,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49657465] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:35,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:35,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:35,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103992293] [2023-12-15 17:33:35,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:35,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:35,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:35,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:35,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:35,129 INFO L87 Difference]: Start difference. First operand 3931 states and 6893 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:39,027 INFO L93 Difference]: Finished difference Result 8326 states and 14153 transitions. [2023-12-15 17:33:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:39,028 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:39,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:39,044 INFO L225 Difference]: With dead ends: 8326 [2023-12-15 17:33:39,044 INFO L226 Difference]: Without dead ends: 6535 [2023-12-15 17:33:39,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:39,050 INFO L413 NwaCegarLoop]: 4469 mSDtfsCounter, 5570 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 3878 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5590 SdHoareTripleChecker+Valid, 22015 SdHoareTripleChecker+Invalid, 3947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:39,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5590 Valid, 22015 Invalid, 3947 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3878 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 17:33:39,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6535 states. [2023-12-15 17:33:39,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6535 to 5349. [2023-12-15 17:33:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5349 states, 5080 states have (on average 1.720472440944882) internal successors, (8740), 5091 states have internal predecessors, (8740), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2023-12-15 17:33:39,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5349 states to 5349 states and 9183 transitions. [2023-12-15 17:33:39,175 INFO L78 Accepts]: Start accepts. Automaton has 5349 states and 9183 transitions. Word has length 172 [2023-12-15 17:33:39,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:39,175 INFO L495 AbstractCegarLoop]: Abstraction has 5349 states and 9183 transitions. [2023-12-15 17:33:39,175 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:39,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5349 states and 9183 transitions. [2023-12-15 17:33:39,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:39,178 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:39,178 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, 1] [2023-12-15 17:33:39,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:33:39,178 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:39,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:39,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1682898322, now seen corresponding path program 1 times [2023-12-15 17:33:39,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:39,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506674569] [2023-12-15 17:33:39,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:39,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:39,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:39,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:39,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:39,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:39,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:39,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:39,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506674569] [2023-12-15 17:33:39,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506674569] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:39,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:39,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:39,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175638338] [2023-12-15 17:33:39,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:39,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:39,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:39,385 INFO L87 Difference]: Start difference. First operand 5349 states and 9183 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:43,450 INFO L93 Difference]: Finished difference Result 13474 states and 22581 transitions. [2023-12-15 17:33:43,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:43,451 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:43,473 INFO L225 Difference]: With dead ends: 13474 [2023-12-15 17:33:43,473 INFO L226 Difference]: Without dead ends: 10265 [2023-12-15 17:33:43,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:33:43,482 INFO L413 NwaCegarLoop]: 4469 mSDtfsCounter, 5575 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 3860 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5595 SdHoareTripleChecker+Valid, 22015 SdHoareTripleChecker+Invalid, 3929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:43,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5595 Valid, 22015 Invalid, 3929 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3860 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 17:33:43,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10265 states. [2023-12-15 17:33:43,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10265 to 8190. [2023-12-15 17:33:43,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7689 states have (on average 1.6816230979321107) internal successors, (12930), 7708 states have internal predecessors, (12930), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:33:43,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13787 transitions. [2023-12-15 17:33:43,702 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13787 transitions. Word has length 172 [2023-12-15 17:33:43,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:43,702 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 13787 transitions. [2023-12-15 17:33:43,703 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:43,703 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13787 transitions. [2023-12-15 17:33:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:43,707 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:43,707 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:33:43,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:33:43,707 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:43,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:43,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1838878864, now seen corresponding path program 1 times [2023-12-15 17:33:43,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:43,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456081746] [2023-12-15 17:33:43,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:43,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:43,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:43,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:43,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:43,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:43,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:43,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:43,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:43,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:43,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456081746] [2023-12-15 17:33:43,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456081746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:43,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:43,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:43,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353355944] [2023-12-15 17:33:43,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:43,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:43,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:43,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:43,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:43,902 INFO L87 Difference]: Start difference. First operand 8190 states and 13787 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:45,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:45,623 INFO L93 Difference]: Finished difference Result 16387 states and 27400 transitions. [2023-12-15 17:33:45,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:45,624 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:45,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:45,648 INFO L225 Difference]: With dead ends: 16387 [2023-12-15 17:33:45,648 INFO L226 Difference]: Without dead ends: 10337 [2023-12-15 17:33:45,664 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 [2023-12-15 17:33:45,665 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5292 mSDsluCounter, 12552 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5313 SdHoareTripleChecker+Valid, 16788 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:45,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5313 Valid, 16788 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:33:45,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10337 states. [2023-12-15 17:33:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10337 to 8190. [2023-12-15 17:33:45,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7689 states have (on average 1.6794121472233061) internal successors, (12913), 7708 states have internal predecessors, (12913), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:33:46,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13770 transitions. [2023-12-15 17:33:46,022 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13770 transitions. Word has length 172 [2023-12-15 17:33:46,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:46,022 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 13770 transitions. [2023-12-15 17:33:46,022 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:46,022 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13770 transitions. [2023-12-15 17:33:46,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:46,026 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:46,026 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, 1] [2023-12-15 17:33:46,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:33:46,026 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:46,028 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:46,028 INFO L85 PathProgramCache]: Analyzing trace with hash 668218610, now seen corresponding path program 1 times [2023-12-15 17:33:46,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:46,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835969964] [2023-12-15 17:33:46,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:46,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:46,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:46,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:46,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:46,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:46,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:46,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:46,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:46,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835969964] [2023-12-15 17:33:46,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835969964] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:46,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:46,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:46,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487669474] [2023-12-15 17:33:46,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:46,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:46,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:46,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:46,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:46,217 INFO L87 Difference]: Start difference. First operand 8190 states and 13770 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:47,921 INFO L93 Difference]: Finished difference Result 16369 states and 27313 transitions. [2023-12-15 17:33:47,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:33:47,922 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:47,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:47,944 INFO L225 Difference]: With dead ends: 16369 [2023-12-15 17:33:47,944 INFO L226 Difference]: Without dead ends: 10319 [2023-12-15 17:33:47,960 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 [2023-12-15 17:33:47,960 INFO L413 NwaCegarLoop]: 4236 mSDtfsCounter, 5290 mSDsluCounter, 12552 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 100 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5311 SdHoareTripleChecker+Valid, 16788 SdHoareTripleChecker+Invalid, 1846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:47,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5311 Valid, 16788 Invalid, 1846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:33:47,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10319 states. [2023-12-15 17:33:48,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10319 to 8190. [2023-12-15 17:33:48,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8190 states, 7689 states have (on average 1.6772011965145013) internal successors, (12896), 7708 states have internal predecessors, (12896), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2023-12-15 17:33:48,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8190 states to 8190 states and 13753 transitions. [2023-12-15 17:33:48,175 INFO L78 Accepts]: Start accepts. Automaton has 8190 states and 13753 transitions. Word has length 172 [2023-12-15 17:33:48,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:48,175 INFO L495 AbstractCegarLoop]: Abstraction has 8190 states and 13753 transitions. [2023-12-15 17:33:48,176 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:48,176 INFO L276 IsEmpty]: Start isEmpty. Operand 8190 states and 13753 transitions. [2023-12-15 17:33:48,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:48,180 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:48,180 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, 1] [2023-12-15 17:33:48,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:33:48,180 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:48,180 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:48,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1467664592, now seen corresponding path program 1 times [2023-12-15 17:33:48,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:48,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379160698] [2023-12-15 17:33:48,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:48,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:48,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:48,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:48,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:48,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:48,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:48,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:48,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379160698] [2023-12-15 17:33:48,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379160698] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:48,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:48,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:48,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952040274] [2023-12-15 17:33:48,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:48,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:48,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:48,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:48,380 INFO L87 Difference]: Start difference. First operand 8190 states and 13753 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:51,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:51,797 INFO L93 Difference]: Finished difference Result 23715 states and 39219 transitions. [2023-12-15 17:33:51,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:33:51,798 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:51,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:51,843 INFO L225 Difference]: With dead ends: 23715 [2023-12-15 17:33:51,843 INFO L226 Difference]: Without dead ends: 17665 [2023-12-15 17:33:51,862 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 [2023-12-15 17:33:51,862 INFO L413 NwaCegarLoop]: 4469 mSDtfsCounter, 5556 mSDsluCounter, 17546 mSDsCounter, 0 mSdLazyCounter, 3783 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5576 SdHoareTripleChecker+Valid, 22015 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 3783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:51,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5576 Valid, 22015 Invalid, 3852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 3783 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-12-15 17:33:51,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17665 states. [2023-12-15 17:33:52,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17665 to 13938. [2023-12-15 17:33:52,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13938 states, 12973 states have (on average 1.6446465736529716) internal successors, (21336), 13008 states have internal predecessors, (21336), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2023-12-15 17:33:52,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13938 states to 13938 states and 23075 transitions. [2023-12-15 17:33:52,414 INFO L78 Accepts]: Start accepts. Automaton has 13938 states and 23075 transitions. Word has length 172 [2023-12-15 17:33:52,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:52,414 INFO L495 AbstractCegarLoop]: Abstraction has 13938 states and 23075 transitions. [2023-12-15 17:33:52,414 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:52,414 INFO L276 IsEmpty]: Start isEmpty. Operand 13938 states and 23075 transitions. [2023-12-15 17:33:52,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:52,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:52,420 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, 1] [2023-12-15 17:33:52,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:33:52,421 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:52,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1398016718, now seen corresponding path program 1 times [2023-12-15 17:33:52,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:52,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022603899] [2023-12-15 17:33:52,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:52,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:52,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:52,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:52,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:52,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:52,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:52,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:52,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:52,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:52,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:52,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022603899] [2023-12-15 17:33:52,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022603899] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:52,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:52,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:52,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065298] [2023-12-15 17:33:52,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:52,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:52,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:52,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:52,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:52,600 INFO L87 Difference]: Start difference. First operand 13938 states and 23075 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:56,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:33:56,740 INFO L93 Difference]: Finished difference Result 49557 states and 81601 transitions. [2023-12-15 17:33:56,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:33:56,740 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 172 [2023-12-15 17:33:56,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:33:56,830 INFO L225 Difference]: With dead ends: 49557 [2023-12-15 17:33:56,830 INFO L226 Difference]: Without dead ends: 37759 [2023-12-15 17:33:56,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:33:56,861 INFO L413 NwaCegarLoop]: 4260 mSDtfsCounter, 6122 mSDsluCounter, 16965 mSDsCounter, 0 mSdLazyCounter, 3169 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6156 SdHoareTripleChecker+Valid, 21225 SdHoareTripleChecker+Invalid, 3283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 3169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:56,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6156 Valid, 21225 Invalid, 3283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 3169 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-15 17:33:56,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37759 states. [2023-12-15 17:33:57,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37759 to 25395. [2023-12-15 17:33:57,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25395 states, 23534 states have (on average 1.6239483300756352) internal successors, (38218), 23601 states have internal predecessors, (38218), 1405 states have call successors, (1405), 391 states have call predecessors, (1405), 454 states have return successors, (2196), 1466 states have call predecessors, (2196), 1403 states have call successors, (2196) [2023-12-15 17:33:57,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25395 states to 25395 states and 41819 transitions. [2023-12-15 17:33:57,834 INFO L78 Accepts]: Start accepts. Automaton has 25395 states and 41819 transitions. Word has length 172 [2023-12-15 17:33:57,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:33:57,834 INFO L495 AbstractCegarLoop]: Abstraction has 25395 states and 41819 transitions. [2023-12-15 17:33:57,834 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:33:57,834 INFO L276 IsEmpty]: Start isEmpty. Operand 25395 states and 41819 transitions. [2023-12-15 17:33:57,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-15 17:33:57,847 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:33:57,847 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, 1] [2023-12-15 17:33:57,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-15 17:33:57,847 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:33:57,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:33:57,848 INFO L85 PathProgramCache]: Analyzing trace with hash -980128016, now seen corresponding path program 1 times [2023-12-15 17:33:57,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:33:57,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659710341] [2023-12-15 17:33:57,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:33:57,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:33:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:57,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:33:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:57,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-12-15 17:33:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:58,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-12-15 17:33:58,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:58,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-12-15 17:33:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-12-15 17:33:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:33:58,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:33:58,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:33:58,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659710341] [2023-12-15 17:33:58,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659710341] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:33:58,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:33:58,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:33:58,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731074161] [2023-12-15 17:33:58,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:33:58,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:33:58,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:33:58,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:33:58,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:33:58,043 INFO L87 Difference]: Start difference. First operand 25395 states and 41819 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Received shutdown request... [2023-12-15 17:33:58,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 17:33:58,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-12-15 17:33:58,476 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 82 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:33:58,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 381 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:33:58,477 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:33:58,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-15 17:33:58,478 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (25395states) and FLOYD_HOARE automaton (currently 5 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-17-1 term,while SimplifyDDA2 was simplifying 17 xjuncts wrt. a ATOM-1 context. [2023-12-15 17:33:58,479 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:33:58,481 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:33:58,483 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:33:58,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:33:58 BoogieIcfgContainer [2023-12-15 17:33:58,485 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:33:58,485 INFO L158 Benchmark]: Toolchain (without parser) took 59458.83ms. Allocated memory was 182.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 110.4MB in the beginning and 1.6GB in the end (delta: -1.5GB). Peak memory consumption was 577.2MB. Max. memory is 8.0GB. [2023-12-15 17:33:58,486 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:33:58,486 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:33:58,486 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2300.69ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 110.1MB in the beginning and 164.9MB in the end (delta: -54.9MB). Peak memory consumption was 147.0MB. Max. memory is 8.0GB. [2023-12-15 17:33:58,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 336.37ms. Allocated memory is still 276.8MB. Free memory was 164.9MB in the beginning and 140.8MB in the end (delta: 24.1MB). Peak memory consumption was 126.9MB. Max. memory is 8.0GB. [2023-12-15 17:33:58,487 INFO L158 Benchmark]: Boogie Preprocessor took 491.02ms. Allocated memory was 276.8MB in the beginning and 553.6MB in the end (delta: 276.8MB). Free memory was 140.8MB in the beginning and 364.7MB in the end (delta: -223.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-15 17:33:58,487 INFO L158 Benchmark]: RCFGBuilder took 6036.59ms. Allocated memory was 553.6MB in the beginning and 1.4GB in the end (delta: 822.1MB). Free memory was 364.7MB in the beginning and 1.1GB in the end (delta: -719.8MB). Peak memory consumption was 398.5MB. Max. memory is 8.0GB. [2023-12-15 17:33:58,487 INFO L158 Benchmark]: TraceAbstraction took 50285.76ms. Allocated memory was 1.4GB in the beginning and 2.2GB in the end (delta: 843.1MB). Free memory was 1.1GB in the beginning and 1.6GB in the end (delta: -486.8MB). Peak memory consumption was 356.8MB. Max. memory is 8.0GB. [2023-12-15 17:33:58,488 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 182.5MB. Free memory is still 138.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2300.69ms. Allocated memory was 182.5MB in the beginning and 276.8MB in the end (delta: 94.4MB). Free memory was 110.1MB in the beginning and 164.9MB in the end (delta: -54.9MB). Peak memory consumption was 147.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 336.37ms. Allocated memory is still 276.8MB. Free memory was 164.9MB in the beginning and 140.8MB in the end (delta: 24.1MB). Peak memory consumption was 126.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 491.02ms. Allocated memory was 276.8MB in the beginning and 553.6MB in the end (delta: 276.8MB). Free memory was 140.8MB in the beginning and 364.7MB in the end (delta: -223.9MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * RCFGBuilder took 6036.59ms. Allocated memory was 553.6MB in the beginning and 1.4GB in the end (delta: 822.1MB). Free memory was 364.7MB in the beginning and 1.1GB in the end (delta: -719.8MB). Peak memory consumption was 398.5MB. Max. memory is 8.0GB. * TraceAbstraction took 50285.76ms. Allocated memory was 1.4GB in the beginning and 2.2GB in the end (delta: 843.1MB). Free memory was 1.1GB in the beginning and 1.6GB in the end (delta: -486.8MB). Peak memory consumption was 356.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (25395states) and FLOYD_HOARE automaton (currently 5 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-17-1 term,while SimplifyDDA2 was simplifying 17 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 11049]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11049). Cancelled while NwaCegarLoop was constructing difference of abstraction (25395states) and FLOYD_HOARE automaton (currently 5 states, 7 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-17-1 term,while SimplifyDDA2 was simplifying 17 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2502 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 16, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 42.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73287 SdHoareTripleChecker+Valid, 30.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72957 mSDsluCounter, 298221 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 233507 mSDsCounter, 1230 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38384 IncrementalHoareTripleChecker+Invalid, 39614 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1230 mSolverCounterUnsat, 64714 mSDtfsCounter, 38384 mSolverCounterSat, 0.7s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 367 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25395occurred in iteration=15, InterpolantAutomatonStates: 149, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 27584 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 2752 NumberOfCodeBlocks, 2752 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2736 ConstructedInterpolants, 0 QuantifiedInterpolants, 8061 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown