/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_label40+token_ring.04.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:29:30,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:29:30,341 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 17:29:30,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:29:30,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:29:30,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:29:30,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:29:30,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:29:30,368 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:29:30,371 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:29:30,371 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:29:30,371 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:29:30,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:29:30,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:29:30,373 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:29:30,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:29:30,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:29:30,373 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:29:30,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:29:30,374 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:29:30,374 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:29:30,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:29:30,375 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:29:30,375 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:29:30,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:29:30,375 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:29:30,375 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:29:30,375 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:29:30,376 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:29:30,376 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:29:30,376 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:29:30,377 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:29:30,377 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:29:30,378 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:29:30,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:29:30,378 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:29:30,378 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:29:30,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:29:30,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:29:30,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:29:30,587 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:29:30,589 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:29:30,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c [2023-12-15 17:29:31,553 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:29:32,019 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:29:32,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.04.cil-1.c [2023-12-15 17:29:32,061 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a5d2878/df013132108a464586b60b700592834e/FLAGfbfe88c75 [2023-12-15 17:29:32,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a5d2878/df013132108a464586b60b700592834e [2023-12-15 17:29:32,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:29:32,078 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:29:32,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:29:32,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:29:32,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:29:32,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:29:32" (1/1) ... [2023-12-15 17:29:32,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dee17b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:32, skipping insertion in model container [2023-12-15 17:29:32,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:29:32" (1/1) ... [2023-12-15 17:29:32,243 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:29:33,281 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_label40+token_ring.04.cil-1.c[377069,377082] [2023-12-15 17:29:33,301 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_label40+token_ring.04.cil-1.c[383339,383352] [2023-12-15 17:29:33,424 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:29:33,433 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:29:34,014 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_label40+token_ring.04.cil-1.c[377069,377082] [2023-12-15 17:29:34,021 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_label40+token_ring.04.cil-1.c[383339,383352] [2023-12-15 17:29:34,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:29:34,102 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:29:34,102 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34 WrapperNode [2023-12-15 17:29:34,102 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:29:34,103 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:29:34,103 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:29:34,103 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:29:34,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,194 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,416 INFO L138 Inliner]: procedures = 52, calls = 53, calls flagged for inlining = 30, calls inlined = 30, statements flattened = 12753 [2023-12-15 17:29:34,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:29:34,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:29:34,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:29:34,488 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:29:34,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,657 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 17:29:34,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,911 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:29:34,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:29:34,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:29:34,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:29:34,991 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (1/1) ... [2023-12-15 17:29:34,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:29:35,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:35,013 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 17:29:35,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 17:29:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:29:35,039 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:29:35,039 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:29:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:29:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:29:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:29:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:29:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:29:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:29:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:29:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:29:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:29:35,040 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:29:35,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:29:35,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:29:35,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:29:35,176 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:29:35,178 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:29:40,294 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:29:40,359 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:29:40,359 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-12-15 17:29:40,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:29:40 BoogieIcfgContainer [2023-12-15 17:29:40,359 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:29:40,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:29:40,361 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:29:40,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:29:40,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:29:32" (1/3) ... [2023-12-15 17:29:40,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0d6e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:29:40, skipping insertion in model container [2023-12-15 17:29:40,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34" (2/3) ... [2023-12-15 17:29:40,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0d6e69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:29:40, skipping insertion in model container [2023-12-15 17:29:40,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:29:40" (3/3) ... [2023-12-15 17:29:40,365 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.04.cil-1.c [2023-12-15 17:29:40,377 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:29:40,377 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:29:40,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:29:40,488 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;@4826a617, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:29:40,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:29:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-15 17:29:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:40,510 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:40,511 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] [2023-12-15 17:29:40,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:40,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:40,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1377940007, now seen corresponding path program 1 times [2023-12-15 17:29:40,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:40,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073321433] [2023-12-15 17:29:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:40,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:40,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:40,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:40,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:40,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:40,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:40,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:40,790 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 17:29:40,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:40,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073321433] [2023-12-15 17:29:40,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073321433] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:40,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:40,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:29:40,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800715988] [2023-12-15 17:29:40,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:40,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:29:40,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:40,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:29:40,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:29:40,823 INFO L87 Difference]: Start difference. First operand has 2287 states, 2260 states have (on average 1.8836283185840708) internal successors, (4257), 2263 states have internal predecessors, (4257), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:41,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:41,463 INFO L93 Difference]: Finished difference Result 4620 states and 8666 transitions. [2023-12-15 17:29:41,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:29:41,465 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:41,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:41,479 INFO L225 Difference]: With dead ends: 4620 [2023-12-15 17:29:41,479 INFO L226 Difference]: Without dead ends: 2333 [2023-12-15 17:29:41,485 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:29:41,487 INFO L413 NwaCegarLoop]: 4105 mSDtfsCounter, 411 mSDsluCounter, 12028 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 16133 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:41,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 16133 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 17:29:41,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2023-12-15 17:29:41,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2283. [2023-12-15 17:29:41,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2283 states, 2257 states have (on average 1.8489144882587505) internal successors, (4173), 2259 states have internal predecessors, (4173), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-15 17:29:41,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2283 states to 2283 states and 4209 transitions. [2023-12-15 17:29:41,581 INFO L78 Accepts]: Start accepts. Automaton has 2283 states and 4209 transitions. Word has length 81 [2023-12-15 17:29:41,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:41,581 INFO L495 AbstractCegarLoop]: Abstraction has 2283 states and 4209 transitions. [2023-12-15 17:29:41,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:41,581 INFO L276 IsEmpty]: Start isEmpty. Operand 2283 states and 4209 transitions. [2023-12-15 17:29:41,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:41,587 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:41,587 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] [2023-12-15 17:29:41,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:29:41,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:41,588 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:41,588 INFO L85 PathProgramCache]: Analyzing trace with hash 490717161, now seen corresponding path program 1 times [2023-12-15 17:29:41,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:41,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348066236] [2023-12-15 17:29:41,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:41,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:41,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:41,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:41,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,756 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 17:29:41,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:41,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348066236] [2023-12-15 17:29:41,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348066236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:41,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:41,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:29:41,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647880644] [2023-12-15 17:29:41,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:41,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:29:41,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:41,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:29:41,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:29:41,763 INFO L87 Difference]: Start difference. First operand 2283 states and 4209 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:42,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:42,635 INFO L93 Difference]: Finished difference Result 2690 states and 4863 transitions. [2023-12-15 17:29:42,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:29:42,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:42,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:42,644 INFO L225 Difference]: With dead ends: 2690 [2023-12-15 17:29:42,645 INFO L226 Difference]: Without dead ends: 2538 [2023-12-15 17:29:42,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:29:42,646 INFO L413 NwaCegarLoop]: 4086 mSDtfsCounter, 4562 mSDsluCounter, 12233 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4573 SdHoareTripleChecker+Valid, 16319 SdHoareTripleChecker+Invalid, 1022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:42,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4573 Valid, 16319 Invalid, 1022 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:29:42,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2023-12-15 17:29:42,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2439. [2023-12-15 17:29:42,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2439 states, 2393 states have (on average 1.8340994567488509) internal successors, (4389), 2396 states have internal predecessors, (4389), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (34), 31 states have call predecessors, (34), 31 states have call successors, (34) [2023-12-15 17:29:42,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 4454 transitions. [2023-12-15 17:29:42,693 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 4454 transitions. Word has length 81 [2023-12-15 17:29:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:42,693 INFO L495 AbstractCegarLoop]: Abstraction has 2439 states and 4454 transitions. [2023-12-15 17:29:42,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 4454 transitions. [2023-12-15 17:29:42,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:42,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:42,695 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] [2023-12-15 17:29:42,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:29:42,695 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:42,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:42,695 INFO L85 PathProgramCache]: Analyzing trace with hash -927081943, now seen corresponding path program 1 times [2023-12-15 17:29:42,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:42,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465852748] [2023-12-15 17:29:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:42,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:42,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:42,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,810 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 17:29:42,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:42,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465852748] [2023-12-15 17:29:42,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465852748] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:42,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:42,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:42,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765222196] [2023-12-15 17:29:42,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:42,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:42,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:42,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:42,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:42,812 INFO L87 Difference]: Start difference. First operand 2439 states and 4454 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:44,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:44,070 INFO L93 Difference]: Finished difference Result 3055 states and 5437 transitions. [2023-12-15 17:29:44,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:29:44,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:44,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:44,079 INFO L225 Difference]: With dead ends: 3055 [2023-12-15 17:29:44,079 INFO L226 Difference]: Without dead ends: 2747 [2023-12-15 17:29:44,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:29:44,081 INFO L413 NwaCegarLoop]: 4180 mSDtfsCounter, 4567 mSDsluCounter, 16521 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4578 SdHoareTripleChecker+Valid, 20701 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:44,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4578 Valid, 20701 Invalid, 1595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 17:29:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2747 states. [2023-12-15 17:29:44,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2747 to 2584. [2023-12-15 17:29:44,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2584 states, 2518 states have (on average 1.8200953137410643) internal successors, (4583), 2522 states have internal predecessors, (4583), 44 states have call successors, (44), 18 states have call predecessors, (44), 20 states have return successors, (49), 45 states have call predecessors, (49), 44 states have call successors, (49) [2023-12-15 17:29:44,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2584 states to 2584 states and 4676 transitions. [2023-12-15 17:29:44,143 INFO L78 Accepts]: Start accepts. Automaton has 2584 states and 4676 transitions. Word has length 81 [2023-12-15 17:29:44,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:44,144 INFO L495 AbstractCegarLoop]: Abstraction has 2584 states and 4676 transitions. [2023-12-15 17:29:44,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:44,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2584 states and 4676 transitions. [2023-12-15 17:29:44,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:44,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:44,145 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] [2023-12-15 17:29:44,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:29:44,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:44,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash -2143235669, now seen corresponding path program 1 times [2023-12-15 17:29:44,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:44,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240133218] [2023-12-15 17:29:44,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:44,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,273 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 17:29:44,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:44,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240133218] [2023-12-15 17:29:44,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240133218] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:44,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:44,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:44,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548083806] [2023-12-15 17:29:44,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:44,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:44,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:44,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:44,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:44,275 INFO L87 Difference]: Start difference. First operand 2584 states and 4676 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:45,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:45,333 INFO L93 Difference]: Finished difference Result 3589 states and 6275 transitions. [2023-12-15 17:29:45,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:29:45,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:45,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:45,343 INFO L225 Difference]: With dead ends: 3589 [2023-12-15 17:29:45,344 INFO L226 Difference]: Without dead ends: 3136 [2023-12-15 17:29:45,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:29:45,346 INFO L413 NwaCegarLoop]: 4095 mSDtfsCounter, 4613 mSDsluCounter, 16302 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4624 SdHoareTripleChecker+Valid, 20397 SdHoareTripleChecker+Invalid, 1351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:45,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4624 Valid, 20397 Invalid, 1351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1284 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:29:45,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2023-12-15 17:29:45,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 2875. [2023-12-15 17:29:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2769 states have (on average 1.795594077284218) internal successors, (4972), 2775 states have internal predecessors, (4972), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2023-12-15 17:29:45,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5125 transitions. [2023-12-15 17:29:45,498 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5125 transitions. Word has length 81 [2023-12-15 17:29:45,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:45,499 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 5125 transitions. [2023-12-15 17:29:45,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:45,499 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5125 transitions. [2023-12-15 17:29:45,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:45,500 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:45,500 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] [2023-12-15 17:29:45,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:29:45,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:45,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:45,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1419764201, now seen corresponding path program 1 times [2023-12-15 17:29:45,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:45,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386549057] [2023-12-15 17:29:45,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:45,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:45,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,636 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 17:29:45,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:45,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386549057] [2023-12-15 17:29:45,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386549057] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:45,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:45,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:45,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70559372] [2023-12-15 17:29:45,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:45,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:45,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:45,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:45,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:45,638 INFO L87 Difference]: Start difference. First operand 2875 states and 5125 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:46,207 INFO L93 Difference]: Finished difference Result 3870 states and 6717 transitions. [2023-12-15 17:29:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:29:46,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:46,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:46,216 INFO L225 Difference]: With dead ends: 3870 [2023-12-15 17:29:46,217 INFO L226 Difference]: Without dead ends: 3126 [2023-12-15 17:29:46,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:29:46,221 INFO L413 NwaCegarLoop]: 4073 mSDtfsCounter, 4481 mSDsluCounter, 12140 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4493 SdHoareTripleChecker+Valid, 16213 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:46,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4493 Valid, 16213 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 17:29:46,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3126 states. [2023-12-15 17:29:46,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3126 to 2875. [2023-12-15 17:29:46,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2875 states, 2769 states have (on average 1.79378837125316) internal successors, (4967), 2775 states have internal predecessors, (4967), 70 states have call successors, (70), 30 states have call predecessors, (70), 34 states have return successors, (83), 73 states have call predecessors, (83), 70 states have call successors, (83) [2023-12-15 17:29:46,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2875 states to 2875 states and 5120 transitions. [2023-12-15 17:29:46,279 INFO L78 Accepts]: Start accepts. Automaton has 2875 states and 5120 transitions. Word has length 81 [2023-12-15 17:29:46,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:46,280 INFO L495 AbstractCegarLoop]: Abstraction has 2875 states and 5120 transitions. [2023-12-15 17:29:46,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:46,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2875 states and 5120 transitions. [2023-12-15 17:29:46,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:46,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:46,283 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] [2023-12-15 17:29:46,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:29:46,284 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:46,284 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:46,284 INFO L85 PathProgramCache]: Analyzing trace with hash -266415637, now seen corresponding path program 1 times [2023-12-15 17:29:46,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:46,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808620014] [2023-12-15 17:29:46,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:46,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:46,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:46,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:46,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:46,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,404 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 17:29:46,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:46,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808620014] [2023-12-15 17:29:46,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808620014] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:46,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:46,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:46,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548328100] [2023-12-15 17:29:46,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:46,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:46,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:46,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:46,406 INFO L87 Difference]: Start difference. First operand 2875 states and 5120 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:47,576 INFO L93 Difference]: Finished difference Result 4829 states and 8192 transitions. [2023-12-15 17:29:47,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:47,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:47,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:47,588 INFO L225 Difference]: With dead ends: 4829 [2023-12-15 17:29:47,589 INFO L226 Difference]: Without dead ends: 4085 [2023-12-15 17:29:47,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:47,592 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4711 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 1486 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4727 SdHoareTripleChecker+Valid, 20692 SdHoareTripleChecker+Invalid, 1536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:47,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4727 Valid, 20692 Invalid, 1536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1486 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 17:29:47,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4085 states. [2023-12-15 17:29:47,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4085 to 3459. [2023-12-15 17:29:47,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3277 states have (on average 1.7552639609398841) internal successors, (5752), 3287 states have internal predecessors, (5752), 118 states have call successors, (118), 54 states have call predecessors, (118), 62 states have return successors, (153), 125 states have call predecessors, (153), 118 states have call successors, (153) [2023-12-15 17:29:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 6023 transitions. [2023-12-15 17:29:47,669 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 6023 transitions. Word has length 81 [2023-12-15 17:29:47,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:47,669 INFO L495 AbstractCegarLoop]: Abstraction has 3459 states and 6023 transitions. [2023-12-15 17:29:47,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:47,669 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 6023 transitions. [2023-12-15 17:29:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:47,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:47,671 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] [2023-12-15 17:29:47,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:29:47,671 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:47,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:47,671 INFO L85 PathProgramCache]: Analyzing trace with hash -683812243, now seen corresponding path program 1 times [2023-12-15 17:29:47,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:47,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567193601] [2023-12-15 17:29:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:47,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:47,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,759 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 17:29:47,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:47,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567193601] [2023-12-15 17:29:47,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567193601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:47,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:47,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:47,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372187121] [2023-12-15 17:29:47,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:47,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:47,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:47,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:47,761 INFO L87 Difference]: Start difference. First operand 3459 states and 6023 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:48,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:48,982 INFO L93 Difference]: Finished difference Result 6997 states and 11579 transitions. [2023-12-15 17:29:48,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:48,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:48,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:49,003 INFO L225 Difference]: With dead ends: 6997 [2023-12-15 17:29:49,003 INFO L226 Difference]: Without dead ends: 5669 [2023-12-15 17:29:49,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:49,008 INFO L413 NwaCegarLoop]: 4175 mSDtfsCounter, 4584 mSDsluCounter, 16513 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4594 SdHoareTripleChecker+Valid, 20688 SdHoareTripleChecker+Invalid, 1750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:49,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4594 Valid, 20688 Invalid, 1750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 17:29:49,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2023-12-15 17:29:49,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 4582. [2023-12-15 17:29:49,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4582 states, 4252 states have (on average 1.7064910630291628) internal successors, (7256), 4270 states have internal predecessors, (7256), 210 states have call successors, (210), 102 states have call predecessors, (210), 118 states have return successors, (307), 225 states have call predecessors, (307), 210 states have call successors, (307) [2023-12-15 17:29:49,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4582 states to 4582 states and 7773 transitions. [2023-12-15 17:29:49,220 INFO L78 Accepts]: Start accepts. Automaton has 4582 states and 7773 transitions. Word has length 81 [2023-12-15 17:29:49,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:49,221 INFO L495 AbstractCegarLoop]: Abstraction has 4582 states and 7773 transitions. [2023-12-15 17:29:49,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:49,222 INFO L276 IsEmpty]: Start isEmpty. Operand 4582 states and 7773 transitions. [2023-12-15 17:29:49,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:49,224 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:49,224 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] [2023-12-15 17:29:49,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:29:49,225 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:49,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:49,225 INFO L85 PathProgramCache]: Analyzing trace with hash -4539989, now seen corresponding path program 1 times [2023-12-15 17:29:49,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:49,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578512247] [2023-12-15 17:29:49,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:49,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:49,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:49,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:49,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,341 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 17:29:49,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:49,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578512247] [2023-12-15 17:29:49,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578512247] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:49,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:49,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:49,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027313876] [2023-12-15 17:29:49,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:49,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:49,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:49,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:49,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:49,342 INFO L87 Difference]: Start difference. First operand 4582 states and 7773 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:50,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:50,595 INFO L93 Difference]: Finished difference Result 11098 states and 18019 transitions. [2023-12-15 17:29:50,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:50,596 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:50,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:50,618 INFO L225 Difference]: With dead ends: 11098 [2023-12-15 17:29:50,619 INFO L226 Difference]: Without dead ends: 8647 [2023-12-15 17:29:50,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:50,628 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4639 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 1460 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4655 SdHoareTripleChecker+Valid, 20692 SdHoareTripleChecker+Invalid, 1510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:50,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4655 Valid, 20692 Invalid, 1510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1460 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:29:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8647 states. [2023-12-15 17:29:50,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8647 to 6867. [2023-12-15 17:29:50,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6249 states have (on average 1.6549847975676109) internal successors, (10342), 6283 states have internal predecessors, (10342), 386 states have call successors, (386), 198 states have call predecessors, (386), 230 states have return successors, (661), 417 states have call predecessors, (661), 386 states have call successors, (661) [2023-12-15 17:29:50,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 11389 transitions. [2023-12-15 17:29:50,872 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 11389 transitions. Word has length 81 [2023-12-15 17:29:50,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:50,872 INFO L495 AbstractCegarLoop]: Abstraction has 6867 states and 11389 transitions. [2023-12-15 17:29:50,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:50,872 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 11389 transitions. [2023-12-15 17:29:50,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:50,876 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:50,876 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] [2023-12-15 17:29:50,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:29:50,876 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:50,877 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1957034669, now seen corresponding path program 1 times [2023-12-15 17:29:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:50,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672569504] [2023-12-15 17:29:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:50,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:50,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:50,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:50,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:50,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:50,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:50,983 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 17:29:50,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:50,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672569504] [2023-12-15 17:29:50,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672569504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:50,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:50,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:50,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633747948] [2023-12-15 17:29:50,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:50,984 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:50,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:50,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:50,985 INFO L87 Difference]: Start difference. First operand 6867 states and 11389 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:52,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:52,354 INFO L93 Difference]: Finished difference Result 19165 states and 30877 transitions. [2023-12-15 17:29:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:52,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:52,398 INFO L225 Difference]: With dead ends: 19165 [2023-12-15 17:29:52,398 INFO L226 Difference]: Without dead ends: 14429 [2023-12-15 17:29:52,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:52,416 INFO L413 NwaCegarLoop]: 4176 mSDtfsCounter, 4603 mSDsluCounter, 16516 mSDsCounter, 0 mSdLazyCounter, 1447 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4619 SdHoareTripleChecker+Valid, 20692 SdHoareTripleChecker+Invalid, 1497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 1447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:52,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4619 Valid, 20692 Invalid, 1497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 1447 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:29:52,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14429 states. [2023-12-15 17:29:52,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14429 to 11436. [2023-12-15 17:29:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11436 states, 10258 states have (on average 1.6127900175472802) internal successors, (16544), 10324 states have internal predecessors, (16544), 722 states have call successors, (722), 390 states have call predecessors, (722), 454 states have return successors, (1515), 785 states have call predecessors, (1515), 722 states have call successors, (1515) [2023-12-15 17:29:52,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11436 states to 11436 states and 18781 transitions. [2023-12-15 17:29:52,851 INFO L78 Accepts]: Start accepts. Automaton has 11436 states and 18781 transitions. Word has length 81 [2023-12-15 17:29:52,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:52,852 INFO L495 AbstractCegarLoop]: Abstraction has 11436 states and 18781 transitions. [2023-12-15 17:29:52,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:52,852 INFO L276 IsEmpty]: Start isEmpty. Operand 11436 states and 18781 transitions. [2023-12-15 17:29:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:52,859 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:52,859 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] [2023-12-15 17:29:52,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:29:52,859 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:52,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:52,859 INFO L85 PathProgramCache]: Analyzing trace with hash -2136108693, now seen corresponding path program 1 times [2023-12-15 17:29:52,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:52,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121287240] [2023-12-15 17:29:52,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:52,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:52,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:52,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:52,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:52,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:52,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:52,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:52,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:52,955 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 17:29:52,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:52,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121287240] [2023-12-15 17:29:52,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121287240] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:52,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:52,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:52,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603237099] [2023-12-15 17:29:52,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:52,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:52,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:52,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:52,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:52,957 INFO L87 Difference]: Start difference. First operand 11436 states and 18781 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:54,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:54,364 INFO L93 Difference]: Finished difference Result 34784 states and 56375 transitions. [2023-12-15 17:29:54,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:54,364 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:54,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:54,436 INFO L225 Difference]: With dead ends: 34784 [2023-12-15 17:29:54,436 INFO L226 Difference]: Without dead ends: 25479 [2023-12-15 17:29:54,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:54,470 INFO L413 NwaCegarLoop]: 4166 mSDtfsCounter, 4552 mSDsluCounter, 16504 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4562 SdHoareTripleChecker+Valid, 20670 SdHoareTripleChecker+Invalid, 1551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:54,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4562 Valid, 20670 Invalid, 1551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1495 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:29:54,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25479 states. [2023-12-15 17:29:55,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25479 to 20561. [2023-12-15 17:29:55,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20561 states, 18303 states have (on average 1.5847675244495438) internal successors, (29006), 18433 states have internal predecessors, (29006), 1358 states have call successors, (1358), 770 states have call predecessors, (1358), 898 states have return successors, (3673), 1485 states have call predecessors, (3673), 1358 states have call successors, (3673) [2023-12-15 17:29:55,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20561 states to 20561 states and 34037 transitions. [2023-12-15 17:29:55,218 INFO L78 Accepts]: Start accepts. Automaton has 20561 states and 34037 transitions. Word has length 81 [2023-12-15 17:29:55,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:55,218 INFO L495 AbstractCegarLoop]: Abstraction has 20561 states and 34037 transitions. [2023-12-15 17:29:55,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:55,219 INFO L276 IsEmpty]: Start isEmpty. Operand 20561 states and 34037 transitions. [2023-12-15 17:29:55,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-15 17:29:55,231 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:55,231 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] [2023-12-15 17:29:55,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:29:55,231 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:55,232 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:55,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1575408915, now seen corresponding path program 1 times [2023-12-15 17:29:55,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:55,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480486374] [2023-12-15 17:29:55,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:55,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:55,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:55,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:55,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:55,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:55,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:55,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:55,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:55,304 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 17:29:55,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:55,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480486374] [2023-12-15 17:29:55,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [480486374] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:55,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:55,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:29:55,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763980339] [2023-12-15 17:29:55,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:55,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:29:55,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:55,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:29:55,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:29:55,306 INFO L87 Difference]: Start difference. First operand 20561 states and 34037 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:56,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:56,817 INFO L93 Difference]: Finished difference Result 54256 states and 88376 transitions. [2023-12-15 17:29:56,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:29:56,817 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 81 [2023-12-15 17:29:56,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:56,910 INFO L225 Difference]: With dead ends: 54256 [2023-12-15 17:29:56,910 INFO L226 Difference]: Without dead ends: 35827 [2023-12-15 17:29:56,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-15 17:29:56,962 INFO L413 NwaCegarLoop]: 4213 mSDtfsCounter, 4743 mSDsluCounter, 12309 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4772 SdHoareTripleChecker+Valid, 16522 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:56,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4772 Valid, 16522 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1259 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:29:56,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35827 states. [2023-12-15 17:29:57,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35827 to 29690. [2023-12-15 17:29:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29690 states, 26260 states have (on average 1.562909367859863) internal successors, (41042), 26519 states have internal predecessors, (41042), 2076 states have call successors, (2076), 1160 states have call predecessors, (2076), 1352 states have return successors, (5121), 2138 states have call predecessors, (5121), 2076 states have call successors, (5121) [2023-12-15 17:29:57,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29690 states to 29690 states and 48239 transitions. [2023-12-15 17:29:57,973 INFO L78 Accepts]: Start accepts. Automaton has 29690 states and 48239 transitions. Word has length 81 [2023-12-15 17:29:57,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:57,973 INFO L495 AbstractCegarLoop]: Abstraction has 29690 states and 48239 transitions. [2023-12-15 17:29:57,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:29:57,973 INFO L276 IsEmpty]: Start isEmpty. Operand 29690 states and 48239 transitions. [2023-12-15 17:29:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-15 17:29:58,025 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:58,025 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:58,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:29:58,025 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:58,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash -162136465, now seen corresponding path program 1 times [2023-12-15 17:29:58,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:58,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489524831] [2023-12-15 17:29:58,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:58,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:58,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:58,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:29:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:29:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:29:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:29:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:29:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 17:29:58,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,110 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:29:58,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:58,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489524831] [2023-12-15 17:29:58,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489524831] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:58,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327751787] [2023-12-15 17:29:58,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:58,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:58,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:58,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:58,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 17:29:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:58,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-15 17:29:58,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:58,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327751787] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:58,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:58,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:29:58,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194197773] [2023-12-15 17:29:58,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:58,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:58,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:58,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:58,317 INFO L87 Difference]: Start difference. First operand 29690 states and 48239 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:29:59,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:59,867 INFO L93 Difference]: Finished difference Result 84209 states and 136555 transitions. [2023-12-15 17:29:59,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:59,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 131 [2023-12-15 17:29:59,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:00,014 INFO L225 Difference]: With dead ends: 84209 [2023-12-15 17:30:00,014 INFO L226 Difference]: Without dead ends: 56651 [2023-12-15 17:30:00,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:00,071 INFO L413 NwaCegarLoop]: 4184 mSDtfsCounter, 4157 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4157 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:00,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4157 Valid, 4391 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:00,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56651 states. [2023-12-15 17:30:01,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56651 to 56455. [2023-12-15 17:30:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56455 states, 49707 states have (on average 1.5459995574064016) internal successors, (76847), 50223 states have internal predecessors, (76847), 4046 states have call successors, (4046), 2316 states have call predecessors, (4046), 2700 states have return successors, (10009), 4043 states have call predecessors, (10009), 4046 states have call successors, (10009) [2023-12-15 17:30:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56455 states to 56455 states and 90902 transitions. [2023-12-15 17:30:01,983 INFO L78 Accepts]: Start accepts. Automaton has 56455 states and 90902 transitions. Word has length 131 [2023-12-15 17:30:01,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:01,983 INFO L495 AbstractCegarLoop]: Abstraction has 56455 states and 90902 transitions. [2023-12-15 17:30:01,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:01,983 INFO L276 IsEmpty]: Start isEmpty. Operand 56455 states and 90902 transitions. [2023-12-15 17:30:02,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-15 17:30:02,054 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:02,055 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:02,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:02,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-12-15 17:30:02,260 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:02,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:02,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1117499279, now seen corresponding path program 1 times [2023-12-15 17:30:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:02,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910658579] [2023-12-15 17:30:02,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:02,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:02,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:30:02,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:30:02,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:30:02,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:02,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:02,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 17:30:02,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,357 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:30:02,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:02,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910658579] [2023-12-15 17:30:02,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910658579] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:02,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162213013] [2023-12-15 17:30:02,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:02,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:02,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:02,358 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:02,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 17:30:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:02,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:02,527 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 17:30:02,528 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:02,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162213013] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:02,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:02,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:30:02,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297306413] [2023-12-15 17:30:02,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:02,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:02,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:02,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:02,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:02,529 INFO L87 Difference]: Start difference. First operand 56455 states and 90902 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:05,486 INFO L93 Difference]: Finished difference Result 163896 states and 264344 transitions. [2023-12-15 17:30:05,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:05,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 131 [2023-12-15 17:30:05,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:05,936 INFO L225 Difference]: With dead ends: 163896 [2023-12-15 17:30:05,936 INFO L226 Difference]: Without dead ends: 109573 [2023-12-15 17:30:06,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:06,012 INFO L413 NwaCegarLoop]: 4184 mSDtfsCounter, 4162 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 4391 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:06,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 4391 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:06,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109573 states. [2023-12-15 17:30:09,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109573 to 109183. [2023-12-15 17:30:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109183 states, 95913 states have (on average 1.5345886376195093) internal successors, (147187), 96943 states have internal predecessors, (147187), 7880 states have call successors, (7880), 4620 states have call predecessors, (7880), 5388 states have return successors, (19679), 7747 states have call predecessors, (19679), 7880 states have call successors, (19679) [2023-12-15 17:30:09,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109183 states to 109183 states and 174746 transitions. [2023-12-15 17:30:09,989 INFO L78 Accepts]: Start accepts. Automaton has 109183 states and 174746 transitions. Word has length 131 [2023-12-15 17:30:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:09,989 INFO L495 AbstractCegarLoop]: Abstraction has 109183 states and 174746 transitions. [2023-12-15 17:30:09,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 109183 states and 174746 transitions. [2023-12-15 17:30:10,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-12-15 17:30:10,105 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:10,105 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:30:10,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:10,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-15 17:30:10,310 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:10,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:10,310 INFO L85 PathProgramCache]: Analyzing trace with hash 433566319, now seen corresponding path program 1 times [2023-12-15 17:30:10,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:10,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789509726] [2023-12-15 17:30:10,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:10,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:10,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:30:10,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:30:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:30:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:10,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-12-15 17:30:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,420 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:30:10,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:10,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789509726] [2023-12-15 17:30:10,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789509726] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:10,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163872184] [2023-12-15 17:30:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:10,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:10,420 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:10,421 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:10,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 17:30:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:10,524 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-15 17:30:10,539 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163872184] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:10,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:10,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186499489] [2023-12-15 17:30:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:10,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:10,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:10,541 INFO L87 Difference]: Start difference. First operand 109183 states and 174746 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 17:30:16,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:16,590 INFO L93 Difference]: Finished difference Result 319181 states and 515201 transitions. [2023-12-15 17:30:16,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:16,591 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 131 [2023-12-15 17:30:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:17,490 INFO L225 Difference]: With dead ends: 319181 [2023-12-15 17:30:17,490 INFO L226 Difference]: Without dead ends: 212131 [2023-12-15 17:30:17,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:17,678 INFO L413 NwaCegarLoop]: 4395 mSDtfsCounter, 219 mSDsluCounter, 4186 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 8581 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:17,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 8581 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:17,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212131 states. [2023-12-15 17:30:24,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212131 to 212131. [2023-12-15 17:30:24,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212131 states, 186258 states have (on average 1.5254056201612816) internal successors, (284119), 188057 states have internal predecessors, (284119), 15167 states have call successors, (15167), 9168 states have call predecessors, (15167), 10704 states have return successors, (41394), 15161 states have call predecessors, (41394), 15167 states have call successors, (41394) [2023-12-15 17:30:25,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212131 states to 212131 states and 340680 transitions. [2023-12-15 17:30:25,673 INFO L78 Accepts]: Start accepts. Automaton has 212131 states and 340680 transitions. Word has length 131 [2023-12-15 17:30:25,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:25,673 INFO L495 AbstractCegarLoop]: Abstraction has 212131 states and 340680 transitions. [2023-12-15 17:30:25,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 17:30:25,674 INFO L276 IsEmpty]: Start isEmpty. Operand 212131 states and 340680 transitions. [2023-12-15 17:30:26,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-12-15 17:30:26,138 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:26,139 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:26,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 17:30:26,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:26,341 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:26,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:26,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1636424928, now seen corresponding path program 1 times [2023-12-15 17:30:26,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:26,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502638110] [2023-12-15 17:30:26,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:26,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:26,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-12-15 17:30:26,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-12-15 17:30:26,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-15 17:30:26,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 17:30:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-12-15 17:30:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-15 17:30:26,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:26,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502638110] [2023-12-15 17:30:26,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502638110] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:26,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227910686] [2023-12-15 17:30:26,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:26,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:26,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:26,472 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:26,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 17:30:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,612 INFO L262 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:26,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:26,938 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-15 17:30:26,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:26,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227910686] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:26,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:26,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:30:26,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953399372] [2023-12-15 17:30:26,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:26,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:26,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:26,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:26,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:26,940 INFO L87 Difference]: Start difference. First operand 212131 states and 340680 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Received shutdown request... [2023-12-15 17:30:27,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:27,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:27,479 INFO L413 NwaCegarLoop]: 335 mSDtfsCounter, 263 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:27,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 335 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:27,480 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:30:27,490 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:30:27,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:27,490 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 17:30:27,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-15 17:30:27,686 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (212131states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24946 states constructed, input type IntersectNwa). [2023-12-15 17:30:27,687 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:30:27,689 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:27,691 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:30:27,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:30:27 BoogieIcfgContainer [2023-12-15 17:30:27,694 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:30:27,694 INFO L158 Benchmark]: Toolchain (without parser) took 55615.99ms. Allocated memory was 199.2MB in the beginning and 6.9GB in the end (delta: 6.7GB). Free memory was 123.2MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-15 17:30:27,694 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 199.2MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:30:27,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2022.32ms. Allocated memory was 199.2MB in the beginning and 475.0MB in the end (delta: 275.8MB). Free memory was 123.2MB in the beginning and 373.7MB in the end (delta: -250.5MB). Peak memory consumption was 219.0MB. Max. memory is 8.0GB. [2023-12-15 17:30:27,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 313.55ms. Allocated memory is still 475.0MB. Free memory was 373.7MB in the beginning and 294.0MB in the end (delta: 79.7MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-15 17:30:27,695 INFO L158 Benchmark]: Boogie Preprocessor took 571.50ms. Allocated memory is still 475.0MB. Free memory was 294.0MB in the beginning and 291.3MB in the end (delta: 2.7MB). Peak memory consumption was 65.1MB. Max. memory is 8.0GB. [2023-12-15 17:30:27,695 INFO L158 Benchmark]: RCFGBuilder took 5369.22ms. Allocated memory was 475.0MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 291.3MB in the beginning and 955.9MB in the end (delta: -664.7MB). Peak memory consumption was 394.4MB. Max. memory is 8.0GB. [2023-12-15 17:30:27,695 INFO L158 Benchmark]: TraceAbstraction took 47332.81ms. Allocated memory was 1.5GB in the beginning and 6.9GB in the end (delta: 5.3GB). Free memory was 955.4MB in the beginning and 4.7GB in the end (delta: -3.7GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-15 17:30:27,696 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 199.2MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2022.32ms. Allocated memory was 199.2MB in the beginning and 475.0MB in the end (delta: 275.8MB). Free memory was 123.2MB in the beginning and 373.7MB in the end (delta: -250.5MB). Peak memory consumption was 219.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 313.55ms. Allocated memory is still 475.0MB. Free memory was 373.7MB in the beginning and 294.0MB in the end (delta: 79.7MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 571.50ms. Allocated memory is still 475.0MB. Free memory was 294.0MB in the beginning and 291.3MB in the end (delta: 2.7MB). Peak memory consumption was 65.1MB. Max. memory is 8.0GB. * RCFGBuilder took 5369.22ms. Allocated memory was 475.0MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 291.3MB in the beginning and 955.9MB in the end (delta: -664.7MB). Peak memory consumption was 394.4MB. Max. memory is 8.0GB. * TraceAbstraction took 47332.81ms. Allocated memory was 1.5GB in the beginning and 6.9GB in the end (delta: 5.3GB). Free memory was 955.4MB in the beginning and 4.7GB in the end (delta: -3.7GB). Peak memory consumption was 1.9GB. 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 (212131states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24946 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 11016]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11016). Cancelled while NwaCegarLoop was constructing difference of abstraction (212131states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24946 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2287 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.3s, OverallIterations: 15, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.8s, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55425 SdHoareTripleChecker+Valid, 8.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55267 mSDsluCounter, 227417 SdHoareTripleChecker+Invalid, 6.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 168698 mSDsCounter, 632 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13942 IncrementalHoareTripleChecker+Invalid, 14574 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 632 mSolverCounterUnsat, 58719 mSDtfsCounter, 13942 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 934 GetRequests, 777 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=212131occurred in iteration=14, InterpolantAutomatonStates: 145, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 18951 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 2015 NumberOfCodeBlocks, 2015 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1996 ConstructedInterpolants, 0 QuantifiedInterpolants, 4400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2352 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 19 InterpolantComputations, 15 PerfectInterpolantSequences, 294/414 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