/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.02.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:29:29,861 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:29:29,927 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 17:29:29,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:29:29,931 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:29:29,951 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:29:29,952 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:29:29,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:29:29,952 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:29:29,955 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:29:29,956 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:29:29,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:29:29,956 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:29:29,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:29:29,957 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:29:29,957 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:29:29,958 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:29:29,958 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:29:29,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:29:29,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:29:29,958 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:29:29,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:29:29,959 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:29:29,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:29:29,959 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:29:29,959 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:29:29,959 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:29:29,960 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:29:29,960 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:29:29,960 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:29:29,961 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:29:29,961 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:29:29,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:29:29,961 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:29:29,961 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:29:29,962 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:29:29,963 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:29:29,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:29:30,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:29:30,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:29:30,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:29:30,183 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:29:30,183 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:29:30,184 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c [2023-12-15 17:29:31,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:29:31,861 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:29:31,861 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label40+token_ring.02.cil-1.c [2023-12-15 17:29:31,948 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db0eab7e/93d403811f0642b4941fb731dcff8477/FLAGdc88124e2 [2023-12-15 17:29:32,425 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8db0eab7e/93d403811f0642b4941fb731dcff8477 [2023-12-15 17:29:32,427 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:29:32,428 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:29:32,428 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:29:32,429 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:29:32,432 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:29:32,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:29:32" (1/1) ... [2023-12-15 17:29:32,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ff11a9 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 17:29:32,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:29:32" (1/1) ... [2023-12-15 17:29:32,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:29:33,682 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.02.cil-1.c[377069,377082] [2023-12-15 17:29:33,700 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.02.cil-1.c[383339,383352] [2023-12-15 17:29:33,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:29:33,820 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:29:34,445 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.02.cil-1.c[377069,377082] [2023-12-15 17:29:34,454 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.02.cil-1.c[383339,383352] [2023-12-15 17:29:34,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:29:34,548 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:29:34,549 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:29:34 WrapperNode [2023-12-15 17:29:34,549 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:29:34,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:29:34,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:29:34,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:29:34,554 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 17:29:34,639 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 17:29:34,856 INFO L138 Inliner]: procedures = 48, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12633 [2023-12-15 17:29:34,856 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:29:34,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:29:34,857 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:29:34,857 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:29:34,864 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 17:29:34,865 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 17:29:34,912 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 17:29:35,180 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 17:29:35,180 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 17:29:35,180 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 17:29:35,286 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 17:29:35,313 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 17:29:35,334 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 17:29:35,348 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 17:29:35,388 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:29:35,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:29:35,390 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:29:35,390 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:29:35,390 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 17:29:35,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:29:35,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:35,438 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 17:29:35,539 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 17:29:35,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:29:35,577 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:29:35,577 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:29:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:29:35,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:29:35,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:29:35,663 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:29:35,665 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:29:41,033 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:29:41,117 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:29:41,117 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-15 17:29:41,117 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:29:41 BoogieIcfgContainer [2023-12-15 17:29:41,117 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:29:41,119 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:29:41,119 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:29:41,121 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:29:41,121 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:29:32" (1/3) ... [2023-12-15 17:29:41,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df49859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:29:41, skipping insertion in model container [2023-12-15 17:29:41,122 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 17:29:41,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df49859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:29:41, skipping insertion in model container [2023-12-15 17:29:41,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:29:41" (3/3) ... [2023-12-15 17:29:41,123 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label40+token_ring.02.cil-1.c [2023-12-15 17:29:41,134 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:29:41,134 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:29:41,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:29:41,191 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;@52382a13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:29:41,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:29:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-15 17:29:41,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 17:29:41,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:41,207 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] [2023-12-15 17:29:41,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:41,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:41,211 INFO L85 PathProgramCache]: Analyzing trace with hash -584044612, now seen corresponding path program 1 times [2023-12-15 17:29:41,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:41,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971981149] [2023-12-15 17:29:41,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:41,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:41,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:41,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:41,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:41,594 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 17:29:41,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:41,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971981149] [2023-12-15 17:29:41,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971981149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:41,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:41,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:29:41,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875525514] [2023-12-15 17:29:41,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:41,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:29:41,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:41,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:29:41,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:29:41,640 INFO L87 Difference]: Start difference. First operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 17:29:42,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:42,402 INFO L93 Difference]: Finished difference Result 4643 states and 8686 transitions. [2023-12-15 17:29:42,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:29:42,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 61 [2023-12-15 17:29:42,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:42,419 INFO L225 Difference]: With dead ends: 4643 [2023-12-15 17:29:42,420 INFO L226 Difference]: Without dead ends: 2404 [2023-12-15 17:29:42,426 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 17:29:42,428 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 4350 mSDsluCounter, 12142 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4359 SdHoareTripleChecker+Valid, 16199 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:42,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4359 Valid, 16199 Invalid, 691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 17:29:42,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2023-12-15 17:29:42,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2345. [2023-12-15 17:29:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.84020842379505) internal successors, (4238), 2306 states have internal predecessors, (4238), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2023-12-15 17:29:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4295 transitions. [2023-12-15 17:29:42,520 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4295 transitions. Word has length 61 [2023-12-15 17:29:42,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:42,520 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4295 transitions. [2023-12-15 17:29:42,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 17:29:42,521 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4295 transitions. [2023-12-15 17:29:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 17:29:42,527 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:42,527 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] [2023-12-15 17:29:42,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:29:42,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:42,528 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1424404092, now seen corresponding path program 1 times [2023-12-15 17:29:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:42,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398168929] [2023-12-15 17:29:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:42,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:42,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:42,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:42,694 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 17:29:42,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:42,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398168929] [2023-12-15 17:29:42,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398168929] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:42,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:42,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:42,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172596782] [2023-12-15 17:29:42,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:42,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:42,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:42,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:42,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:42,697 INFO L87 Difference]: Start difference. First operand 2345 states and 4295 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:43,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:43,470 INFO L93 Difference]: Finished difference Result 2757 states and 4924 transitions. [2023-12-15 17:29:43,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:29:43,470 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 61 [2023-12-15 17:29:43,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:43,478 INFO L225 Difference]: With dead ends: 2757 [2023-12-15 17:29:43,478 INFO L226 Difference]: Without dead ends: 2541 [2023-12-15 17:29:43,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:29:43,480 INFO L413 NwaCegarLoop]: 4121 mSDtfsCounter, 4342 mSDsluCounter, 16314 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 20435 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:43,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4351 Valid, 20435 Invalid, 1048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:29:43,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2023-12-15 17:29:43,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2446. [2023-12-15 17:29:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2386 states have (on average 1.8281642917015926) internal successors, (4362), 2390 states have internal predecessors, (4362), 38 states have call successors, (38), 18 states have call predecessors, (38), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2023-12-15 17:29:43,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 4443 transitions. [2023-12-15 17:29:43,523 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 4443 transitions. Word has length 61 [2023-12-15 17:29:43,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:43,524 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 4443 transitions. [2023-12-15 17:29:43,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:43,524 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 4443 transitions. [2023-12-15 17:29:43,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 17:29:43,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:43,525 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] [2023-12-15 17:29:43,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:29:43,525 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:43,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:43,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1408885374, now seen corresponding path program 1 times [2023-12-15 17:29:43,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:43,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962068151] [2023-12-15 17:29:43,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:43,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:43,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:43,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:43,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:43,613 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 17:29:43,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962068151] [2023-12-15 17:29:43,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962068151] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:43,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:43,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:43,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185032428] [2023-12-15 17:29:43,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:43,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:43,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:43,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:43,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:43,615 INFO L87 Difference]: Start difference. First operand 2446 states and 4443 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:44,449 INFO L93 Difference]: Finished difference Result 3115 states and 5460 transitions. [2023-12-15 17:29:44,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:29:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 61 [2023-12-15 17:29:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:44,458 INFO L225 Difference]: With dead ends: 3115 [2023-12-15 17:29:44,458 INFO L226 Difference]: Without dead ends: 2798 [2023-12-15 17:29:44,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:29:44,460 INFO L413 NwaCegarLoop]: 4062 mSDtfsCounter, 4378 mSDsluCounter, 16167 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 20229 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:44,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 20229 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:29:44,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2023-12-15 17:29:44,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2649. [2023-12-15 17:29:44,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2553 states have (on average 1.8061104582843712) internal successors, (4611), 2559 states have internal predecessors, (4611), 60 states have call successors, (60), 30 states have call predecessors, (60), 34 states have return successors, (73), 63 states have call predecessors, (73), 60 states have call successors, (73) [2023-12-15 17:29:44,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4744 transitions. [2023-12-15 17:29:44,509 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4744 transitions. Word has length 61 [2023-12-15 17:29:44,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:44,509 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 4744 transitions. [2023-12-15 17:29:44,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:44,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4744 transitions. [2023-12-15 17:29:44,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 17:29:44,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:44,511 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] [2023-12-15 17:29:44,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:29:44,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:44,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash -946919876, now seen corresponding path program 1 times [2023-12-15 17:29:44,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:44,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102838303] [2023-12-15 17:29:44,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:44,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:44,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:44,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:44,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:44,630 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 17:29:44,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:44,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102838303] [2023-12-15 17:29:44,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102838303] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:44,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:44,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:44,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043814427] [2023-12-15 17:29:44,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:44,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:44,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:44,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:44,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:44,634 INFO L87 Difference]: Start difference. First operand 2649 states and 4744 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:45,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:45,441 INFO L93 Difference]: Finished difference Result 3887 states and 6619 transitions. [2023-12-15 17:29:45,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:45,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 61 [2023-12-15 17:29:45,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:45,452 INFO L225 Difference]: With dead ends: 3887 [2023-12-15 17:29:45,452 INFO L226 Difference]: Without dead ends: 3367 [2023-12-15 17:29:45,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:45,472 INFO L413 NwaCegarLoop]: 4116 mSDtfsCounter, 4350 mSDsluCounter, 16306 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4358 SdHoareTripleChecker+Valid, 20422 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:45,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4358 Valid, 20422 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:29:45,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2023-12-15 17:29:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3033. [2023-12-15 17:29:45,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2869 states have (on average 1.7716974555594285) internal successors, (5083), 2879 states have internal predecessors, (5083), 100 states have call successors, (100), 54 states have call predecessors, (100), 62 states have return successors, (135), 107 states have call predecessors, (135), 100 states have call successors, (135) [2023-12-15 17:29:45,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 5318 transitions. [2023-12-15 17:29:45,554 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 5318 transitions. Word has length 61 [2023-12-15 17:29:45,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:45,555 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 5318 transitions. [2023-12-15 17:29:45,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:45,556 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 5318 transitions. [2023-12-15 17:29:45,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 17:29:45,557 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:45,557 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] [2023-12-15 17:29:45,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:29:45,558 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:45,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:45,558 INFO L85 PathProgramCache]: Analyzing trace with hash 981352826, now seen corresponding path program 1 times [2023-12-15 17:29:45,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:45,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116054959] [2023-12-15 17:29:45,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:45,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:45,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:45,617 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 10 [2023-12-15 17:29:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:45,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:45,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:45,665 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 17:29:45,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:45,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116054959] [2023-12-15 17:29:45,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116054959] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:45,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:45,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:29:45,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091534090] [2023-12-15 17:29:45,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:45,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:29:45,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:45,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:29:45,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:45,673 INFO L87 Difference]: Start difference. First operand 3033 states and 5318 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:46,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:46,569 INFO L93 Difference]: Finished difference Result 5185 states and 8559 transitions. [2023-12-15 17:29:46,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:29:46,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 61 [2023-12-15 17:29:46,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:46,583 INFO L225 Difference]: With dead ends: 5185 [2023-12-15 17:29:46,583 INFO L226 Difference]: Without dead ends: 4281 [2023-12-15 17:29:46,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:29:46,590 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4350 mSDsluCounter, 16309 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 20426 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:46,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 20426 Invalid, 999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:29:46,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2023-12-15 17:29:46,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 3818. [2023-12-15 17:29:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3522 states have (on average 1.7208972174900625) internal successors, (6061), 3540 states have internal predecessors, (6061), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2023-12-15 17:29:46,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 6510 transitions. [2023-12-15 17:29:46,690 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 6510 transitions. Word has length 61 [2023-12-15 17:29:46,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:46,691 INFO L495 AbstractCegarLoop]: Abstraction has 3818 states and 6510 transitions. [2023-12-15 17:29:46,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 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 17:29:46,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 6510 transitions. [2023-12-15 17:29:46,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-15 17:29:46,693 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:46,693 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] [2023-12-15 17:29:46,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:29:46,694 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:46,694 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:46,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1874839164, now seen corresponding path program 1 times [2023-12-15 17:29:46,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:46,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513671413] [2023-12-15 17:29:46,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:46,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:46,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:46,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:46,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:46,771 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 17:29:46,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:46,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513671413] [2023-12-15 17:29:46,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513671413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:46,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:29:46,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:29:46,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143256810] [2023-12-15 17:29:46,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:46,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:29:46,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:46,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:29:46,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:29:46,774 INFO L87 Difference]: Start difference. First operand 3818 states and 6510 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 17:29:47,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:47,435 INFO L93 Difference]: Finished difference Result 6913 states and 11211 transitions. [2023-12-15 17:29:47,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:29:47,435 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 61 [2023-12-15 17:29:47,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:47,451 INFO L225 Difference]: With dead ends: 6913 [2023-12-15 17:29:47,451 INFO L226 Difference]: Without dead ends: 5225 [2023-12-15 17:29:47,456 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 17:29:47,456 INFO L413 NwaCegarLoop]: 4142 mSDtfsCounter, 4472 mSDsluCounter, 12167 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 16309 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:47,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4497 Valid, 16309 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 17:29:47,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2023-12-15 17:29:47,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 4690. [2023-12-15 17:29:47,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4690 states, 4236 states have (on average 1.674929178470255) internal successors, (7095), 4271 states have internal predecessors, (7095), 272 states have call successors, (272), 156 states have call predecessors, (272), 180 states have return successors, (397), 278 states have call predecessors, (397), 272 states have call successors, (397) [2023-12-15 17:29:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 7764 transitions. [2023-12-15 17:29:47,570 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 7764 transitions. Word has length 61 [2023-12-15 17:29:47,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:47,570 INFO L495 AbstractCegarLoop]: Abstraction has 4690 states and 7764 transitions. [2023-12-15 17:29:47,571 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 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 17:29:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 7764 transitions. [2023-12-15 17:29:47,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 17:29:47,576 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:47,576 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:47,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:29:47,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:47,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:47,577 INFO L85 PathProgramCache]: Analyzing trace with hash -2042674346, now seen corresponding path program 1 times [2023-12-15 17:29:47,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:47,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505831418] [2023-12-15 17:29:47,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:47,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:47,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:47,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:47,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:47,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 17:29:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 17:29:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,685 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:29:47,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:47,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505831418] [2023-12-15 17:29:47,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505831418] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:47,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084495123] [2023-12-15 17:29:47,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:47,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:47,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:47,688 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 17:29:47,691 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 17:29:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:47,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:47,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:47,836 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 17:29:47,836 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:47,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084495123] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:47,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:47,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:29:47,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353847034] [2023-12-15 17:29:47,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:47,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:47,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:47,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:47,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:47,838 INFO L87 Difference]: Start difference. First operand 4690 states and 7764 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 17:29:47,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:47,969 INFO L93 Difference]: Finished difference Result 9693 states and 15244 transitions. [2023-12-15 17:29:47,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:47,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 99 [2023-12-15 17:29:47,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:48,060 INFO L225 Difference]: With dead ends: 9693 [2023-12-15 17:29:48,061 INFO L226 Difference]: Without dead ends: 7133 [2023-12-15 17:29:48,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 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 17:29:48,066 INFO L413 NwaCegarLoop]: 4114 mSDtfsCounter, 4092 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4092 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:48,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4092 Valid, 4254 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:48,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2023-12-15 17:29:48,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 7105. [2023-12-15 17:29:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7105 states, 6237 states have (on average 1.6091069424402757) internal successors, (10036), 6305 states have internal predecessors, (10036), 510 states have call successors, (510), 308 states have call predecessors, (510), 356 states have return successors, (745), 507 states have call predecessors, (745), 510 states have call successors, (745) [2023-12-15 17:29:48,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7105 states to 7105 states and 11291 transitions. [2023-12-15 17:29:48,312 INFO L78 Accepts]: Start accepts. Automaton has 7105 states and 11291 transitions. Word has length 99 [2023-12-15 17:29:48,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:48,314 INFO L495 AbstractCegarLoop]: Abstraction has 7105 states and 11291 transitions. [2023-12-15 17:29:48,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 17:29:48,314 INFO L276 IsEmpty]: Start isEmpty. Operand 7105 states and 11291 transitions. [2023-12-15 17:29:48,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-15 17:29:48,324 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:48,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:29:48,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 17:29:48,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:48,529 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:48,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:48,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1877378954, now seen corresponding path program 1 times [2023-12-15 17:29:48,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:48,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406761017] [2023-12-15 17:29:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:48,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 17:29:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 17:29:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:29:48,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406761017] [2023-12-15 17:29:48,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406761017] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:48,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228957067] [2023-12-15 17:29:48,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:48,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:48,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:48,641 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 17:29:48,701 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 17:29:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:48,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:48,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:48,797 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-15 17:29:48,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:48,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228957067] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:48,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:48,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:29:48,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205681539] [2023-12-15 17:29:48,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:48,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:48,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:48,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:48,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:48,799 INFO L87 Difference]: Start difference. First operand 7105 states and 11291 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 17:29:49,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:49,105 INFO L93 Difference]: Finished difference Result 16767 states and 25811 transitions. [2023-12-15 17:29:49,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:49,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 99 [2023-12-15 17:29:49,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:49,147 INFO L225 Difference]: With dead ends: 16767 [2023-12-15 17:29:49,147 INFO L226 Difference]: Without dead ends: 11793 [2023-12-15 17:29:49,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 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 17:29:49,172 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 145 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 8367 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:49,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 8367 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:49,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11793 states. [2023-12-15 17:29:49,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11793 to 11793. [2023-12-15 17:29:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11793 states, 10112 states have (on average 1.5505340189873418) internal successors, (15679), 10229 states have internal predecessors, (15679), 975 states have call successors, (975), 608 states have call predecessors, (975), 704 states have return successors, (1596), 987 states have call predecessors, (1596), 975 states have call successors, (1596) [2023-12-15 17:29:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11793 states to 11793 states and 18250 transitions. [2023-12-15 17:29:49,593 INFO L78 Accepts]: Start accepts. Automaton has 11793 states and 18250 transitions. Word has length 99 [2023-12-15 17:29:49,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:49,593 INFO L495 AbstractCegarLoop]: Abstraction has 11793 states and 18250 transitions. [2023-12-15 17:29:49,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 17:29:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 11793 states and 18250 transitions. [2023-12-15 17:29:49,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-12-15 17:29:49,612 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:49,612 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-15 17:29:49,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 17:29:49,816 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,SelfDestructingSolverStorable7 [2023-12-15 17:29:49,817 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:49,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:49,817 INFO L85 PathProgramCache]: Analyzing trace with hash -1335572908, now seen corresponding path program 1 times [2023-12-15 17:29:49,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:49,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311671455] [2023-12-15 17:29:49,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:49,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:49,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 17:29:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-12-15 17:29:49,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:49,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-12-15 17:29:49,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-12-15 17:29:49,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:49,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311671455] [2023-12-15 17:29:49,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311671455] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:49,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587811224] [2023-12-15 17:29:49,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:49,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:49,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:49,898 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 17:29:49,916 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 17:29:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:49,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:49,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-15 17:29:50,065 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:50,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587811224] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:50,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:50,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:29:50,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964391430] [2023-12-15 17:29:50,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:50,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:50,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:50,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:50,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:50,066 INFO L87 Difference]: Start difference. First operand 11793 states and 18250 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2023-12-15 17:29:50,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:50,628 INFO L93 Difference]: Finished difference Result 30733 states and 46555 transitions. [2023-12-15 17:29:50,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:50,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) Word has length 127 [2023-12-15 17:29:50,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:50,676 INFO L225 Difference]: With dead ends: 30733 [2023-12-15 17:29:50,676 INFO L226 Difference]: Without dead ends: 21075 [2023-12-15 17:29:50,694 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 17:29:50,694 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4053 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4053 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:50,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4053 Valid, 4257 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:50,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21075 states. [2023-12-15 17:29:51,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21075 to 20969. [2023-12-15 17:29:51,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20969 states, 17708 states have (on average 1.5070589564038852) internal successors, (26687), 17939 states have internal predecessors, (26687), 1869 states have call successors, (1869), 1198 states have call predecessors, (1869), 1390 states have return successors, (3038), 1863 states have call predecessors, (3038), 1869 states have call successors, (3038) [2023-12-15 17:29:51,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20969 states to 20969 states and 31594 transitions. [2023-12-15 17:29:51,217 INFO L78 Accepts]: Start accepts. Automaton has 20969 states and 31594 transitions. Word has length 127 [2023-12-15 17:29:51,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:51,217 INFO L495 AbstractCegarLoop]: Abstraction has 20969 states and 31594 transitions. [2023-12-15 17:29:51,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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) [2023-12-15 17:29:51,217 INFO L276 IsEmpty]: Start isEmpty. Operand 20969 states and 31594 transitions. [2023-12-15 17:29:51,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-15 17:29:51,256 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:51,256 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, 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] [2023-12-15 17:29:51,267 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 17:29:51,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:51,467 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:51,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:51,468 INFO L85 PathProgramCache]: Analyzing trace with hash 791512030, now seen corresponding path program 1 times [2023-12-15 17:29:51,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:51,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745500255] [2023-12-15 17:29:51,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:51,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:51,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:51,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 17:29:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 17:29:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:51,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 17:29:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 17:29:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-15 17:29:51,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:51,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745500255] [2023-12-15 17:29:51,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745500255] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:51,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406136308] [2023-12-15 17:29:51,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:51,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:51,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:51,550 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 17:29:51,576 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 17:29:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:51,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:51,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 17:29:51,691 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:51,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406136308] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:51,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:51,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:29:51,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387780482] [2023-12-15 17:29:51,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:51,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:51,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:51,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:51,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:51,693 INFO L87 Difference]: Start difference. First operand 20969 states and 31594 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:29:52,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:52,069 INFO L93 Difference]: Finished difference Result 33443 states and 50451 transitions. [2023-12-15 17:29:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:52,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 143 [2023-12-15 17:29:52,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:52,117 INFO L225 Difference]: With dead ends: 33443 [2023-12-15 17:29:52,117 INFO L226 Difference]: Without dead ends: 18715 [2023-12-15 17:29:52,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 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 17:29:52,150 INFO L413 NwaCegarLoop]: 4114 mSDtfsCounter, 4086 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 4142 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:52,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 4142 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:52,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18715 states. [2023-12-15 17:29:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18715 to 14099. [2023-12-15 17:29:52,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14099 states, 12046 states have (on average 1.4857214012950357) internal successors, (17897), 12167 states have internal predecessors, (17897), 1161 states have call successors, (1161), 794 states have call predecessors, (1161), 890 states have return successors, (1648), 1153 states have call predecessors, (1648), 1161 states have call successors, (1648) [2023-12-15 17:29:52,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14099 states to 14099 states and 20706 transitions. [2023-12-15 17:29:52,782 INFO L78 Accepts]: Start accepts. Automaton has 14099 states and 20706 transitions. Word has length 143 [2023-12-15 17:29:52,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:52,783 INFO L495 AbstractCegarLoop]: Abstraction has 14099 states and 20706 transitions. [2023-12-15 17:29:52,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:29:52,783 INFO L276 IsEmpty]: Start isEmpty. Operand 14099 states and 20706 transitions. [2023-12-15 17:29:52,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-12-15 17:29:52,804 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:52,805 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, 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] [2023-12-15 17:29:52,826 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 17:29:53,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:53,010 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:53,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:53,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2075302660, now seen corresponding path program 1 times [2023-12-15 17:29:53,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:53,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198908430] [2023-12-15 17:29:53,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:53,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:53,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:53,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:53,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-12-15 17:29:53,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 17:29:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 17:29:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-12-15 17:29:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,098 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-15 17:29:53,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198908430] [2023-12-15 17:29:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198908430] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489767684] [2023-12-15 17:29:53,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:53,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:53,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:53,113 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:53,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 17:29:53,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:53,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:29:53,254 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-12-15 17:29:53,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:53,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489767684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:53,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:53,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:29:53,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423096112] [2023-12-15 17:29:53,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:53,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:53,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:53,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:53,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:53,286 INFO L87 Difference]: Start difference. First operand 14099 states and 20706 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:29:53,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:53,711 INFO L93 Difference]: Finished difference Result 23244 states and 33469 transitions. [2023-12-15 17:29:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:53,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 143 [2023-12-15 17:29:53,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:53,753 INFO L225 Difference]: With dead ends: 23244 [2023-12-15 17:29:53,753 INFO L226 Difference]: Without dead ends: 14923 [2023-12-15 17:29:53,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 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 17:29:53,768 INFO L413 NwaCegarLoop]: 4143 mSDtfsCounter, 4079 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:53,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 4288 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:53,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14923 states. [2023-12-15 17:29:54,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14923 to 14857. [2023-12-15 17:29:54,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14857 states, 12716 states have (on average 1.4599716892104435) internal successors, (18565), 12837 states have internal predecessors, (18565), 1183 states have call successors, (1183), 860 states have call predecessors, (1183), 956 states have return successors, (1736), 1175 states have call predecessors, (1736), 1183 states have call successors, (1736) [2023-12-15 17:29:54,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14857 states to 14857 states and 21484 transitions. [2023-12-15 17:29:54,140 INFO L78 Accepts]: Start accepts. Automaton has 14857 states and 21484 transitions. Word has length 143 [2023-12-15 17:29:54,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:54,140 INFO L495 AbstractCegarLoop]: Abstraction has 14857 states and 21484 transitions. [2023-12-15 17:29:54,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:29:54,140 INFO L276 IsEmpty]: Start isEmpty. Operand 14857 states and 21484 transitions. [2023-12-15 17:29:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 17:29:54,165 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:54,166 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, 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] [2023-12-15 17:29:54,185 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 17:29:54,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-12-15 17:29:54,371 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:54,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:54,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1556193784, now seen corresponding path program 1 times [2023-12-15 17:29:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625099765] [2023-12-15 17:29:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:54,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:54,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:54,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:54,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:54,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 17:29:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:54,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 17:29:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 17:29:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:54,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 17:29:54,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,455 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-15 17:29:54,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:54,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625099765] [2023-12-15 17:29:54,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625099765] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:54,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676977856] [2023-12-15 17:29:54,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:54,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:54,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:54,472 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:54,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 17:29:54,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:54,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:54,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-12-15 17:29:54,594 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:54,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676977856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:54,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:54,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:29:54,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775809245] [2023-12-15 17:29:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:54,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:54,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:54,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:54,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:54,596 INFO L87 Difference]: Start difference. First operand 14857 states and 21484 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:29:55,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:55,228 INFO L93 Difference]: Finished difference Result 39509 states and 55950 transitions. [2023-12-15 17:29:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:55,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2023-12-15 17:29:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:55,291 INFO L225 Difference]: With dead ends: 39509 [2023-12-15 17:29:55,292 INFO L226 Difference]: Without dead ends: 26789 [2023-12-15 17:29:55,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 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 17:29:55,310 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 135 mSDsluCounter, 4112 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:55,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 8365 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:55,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26789 states. [2023-12-15 17:29:56,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26789 to 26743. [2023-12-15 17:29:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26743 states, 22644 states have (on average 1.4140169581346052) internal successors, (32019), 22885 states have internal predecessors, (32019), 2245 states have call successors, (2245), 1660 states have call predecessors, (2245), 1852 states have return successors, (3798), 2229 states have call predecessors, (3798), 2245 states have call successors, (3798) [2023-12-15 17:29:56,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26743 states to 26743 states and 38062 transitions. [2023-12-15 17:29:56,181 INFO L78 Accepts]: Start accepts. Automaton has 26743 states and 38062 transitions. Word has length 144 [2023-12-15 17:29:56,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:56,182 INFO L495 AbstractCegarLoop]: Abstraction has 26743 states and 38062 transitions. [2023-12-15 17:29:56,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:29:56,182 INFO L276 IsEmpty]: Start isEmpty. Operand 26743 states and 38062 transitions. [2023-12-15 17:29:56,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 17:29:56,211 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:56,211 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, 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] [2023-12-15 17:29:56,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-15 17:29:56,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:56,416 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:56,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:56,416 INFO L85 PathProgramCache]: Analyzing trace with hash 125794537, now seen corresponding path program 1 times [2023-12-15 17:29:56,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:56,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908592523] [2023-12-15 17:29:56,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:56,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:56,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 17:29:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:56,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 17:29:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 17:29:56,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 17:29:56,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-15 17:29:56,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:56,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908592523] [2023-12-15 17:29:56,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908592523] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:56,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712133089] [2023-12-15 17:29:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:56,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:56,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:56,513 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:56,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 17:29:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:56,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:56,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:56,682 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 17:29:56,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:56,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712133089] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:56,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:56,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:29:56,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940828245] [2023-12-15 17:29:56,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:56,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:56,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:56,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:56,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:56,685 INFO L87 Difference]: Start difference. First operand 26743 states and 38062 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:29:57,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:29:57,365 INFO L93 Difference]: Finished difference Result 52491 states and 75074 transitions. [2023-12-15 17:29:57,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:29:57,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2023-12-15 17:29:57,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:29:57,428 INFO L225 Difference]: With dead ends: 52491 [2023-12-15 17:29:57,429 INFO L226 Difference]: Without dead ends: 27885 [2023-12-15 17:29:57,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 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 17:29:57,461 INFO L413 NwaCegarLoop]: 4108 mSDtfsCounter, 4065 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4065 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:29:57,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4065 Valid, 4135 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:29:57,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27885 states. [2023-12-15 17:29:58,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27885 to 27841. [2023-12-15 17:29:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27841 states, 23682 states have (on average 1.3691833460011824) internal successors, (32425), 23923 states have internal predecessors, (32425), 2245 states have call successors, (2245), 1720 states have call predecessors, (2245), 1912 states have return successors, (3754), 2229 states have call predecessors, (3754), 2245 states have call successors, (3754) [2023-12-15 17:29:58,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27841 states to 27841 states and 38424 transitions. [2023-12-15 17:29:58,258 INFO L78 Accepts]: Start accepts. Automaton has 27841 states and 38424 transitions. Word has length 144 [2023-12-15 17:29:58,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:29:58,258 INFO L495 AbstractCegarLoop]: Abstraction has 27841 states and 38424 transitions. [2023-12-15 17:29:58,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:29:58,258 INFO L276 IsEmpty]: Start isEmpty. Operand 27841 states and 38424 transitions. [2023-12-15 17:29:58,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-12-15 17:29:58,287 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:29:58,287 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, 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] [2023-12-15 17:29:58,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 17:29:58,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:58,492 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:29:58,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:29:58,492 INFO L85 PathProgramCache]: Analyzing trace with hash -782339540, now seen corresponding path program 1 times [2023-12-15 17:29:58,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:29:58,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958017864] [2023-12-15 17:29:58,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:58,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:29:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:29:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:29:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:29:58,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:29:58,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:29:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-12-15 17:29:58,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:58,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-12-15 17:29:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-12-15 17:29:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:29:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-12-15 17:29:58,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,581 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-12-15 17:29:58,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:29:58,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958017864] [2023-12-15 17:29:58,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958017864] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:29:58,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125521063] [2023-12-15 17:29:58,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:29:58,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:29:58,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:29:58,583 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:29:58,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 17:29:58,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:29:58,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:29:58,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:29:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 17:29:58,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:29:58,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125521063] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:29:58,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:29:58,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:29:58,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166680369] [2023-12-15 17:29:58,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:29:58,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:29:58,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:29:58,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:29:58,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:29:58,683 INFO L87 Difference]: Start difference. First operand 27841 states and 38424 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:30:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:00,033 INFO L93 Difference]: Finished difference Result 75539 states and 103548 transitions. [2023-12-15 17:30:00,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:00,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2023-12-15 17:30:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:00,155 INFO L225 Difference]: With dead ends: 75539 [2023-12-15 17:30:00,155 INFO L226 Difference]: Without dead ends: 49843 [2023-12-15 17:30:00,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 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 17:30:00,197 INFO L413 NwaCegarLoop]: 4247 mSDtfsCounter, 139 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 8354 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:00,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 8354 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:00,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49843 states. [2023-12-15 17:30:01,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49843 to 49841. [2023-12-15 17:30:01,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49841 states, 41974 states have (on average 1.333468337542288) internal successors, (55971), 42455 states have internal predecessors, (55971), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2023-12-15 17:30:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49841 states to 49841 states and 68436 transitions. [2023-12-15 17:30:02,041 INFO L78 Accepts]: Start accepts. Automaton has 49841 states and 68436 transitions. Word has length 144 [2023-12-15 17:30:02,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:02,043 INFO L495 AbstractCegarLoop]: Abstraction has 49841 states and 68436 transitions. [2023-12-15 17:30:02,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:30:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 49841 states and 68436 transitions. [2023-12-15 17:30:02,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 17:30:02,095 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:02,097 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, 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] [2023-12-15 17:30:02,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:02,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-12-15 17:30:02,302 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:02,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:02,302 INFO L85 PathProgramCache]: Analyzing trace with hash -873894743, now seen corresponding path program 1 times [2023-12-15 17:30:02,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:02,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876601644] [2023-12-15 17:30:02,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:02,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:02,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 17:30:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:30:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:02,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 17:30:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 17:30:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-15 17:30:02,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:02,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876601644] [2023-12-15 17:30:02,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876601644] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:02,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050037673] [2023-12-15 17:30:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:02,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:02,452 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:02,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 17:30:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:02,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:30:02,647 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:02,674 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-15 17:30:02,674 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:02,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050037673] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:02,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:02,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:02,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104686954] [2023-12-15 17:30:02,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:02,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:02,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:02,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:02,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:02,676 INFO L87 Difference]: Start difference. First operand 49841 states and 68436 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:30:03,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:03,956 INFO L93 Difference]: Finished difference Result 87149 states and 119166 transitions. [2023-12-15 17:30:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:03,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 145 [2023-12-15 17:30:03,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:04,096 INFO L225 Difference]: With dead ends: 87149 [2023-12-15 17:30:04,096 INFO L226 Difference]: Without dead ends: 51011 [2023-12-15 17:30:04,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 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 17:30:04,142 INFO L413 NwaCegarLoop]: 4134 mSDtfsCounter, 4085 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:04,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4275 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51011 states. [2023-12-15 17:30:05,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51011 to 49721. [2023-12-15 17:30:05,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49721 states, 41854 states have (on average 1.324389544607445) internal successors, (55431), 42335 states have internal predecessors, (55431), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2023-12-15 17:30:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49721 states to 49721 states and 67896 transitions. [2023-12-15 17:30:06,058 INFO L78 Accepts]: Start accepts. Automaton has 49721 states and 67896 transitions. Word has length 145 [2023-12-15 17:30:06,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:06,058 INFO L495 AbstractCegarLoop]: Abstraction has 49721 states and 67896 transitions. [2023-12-15 17:30:06,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:30:06,058 INFO L276 IsEmpty]: Start isEmpty. Operand 49721 states and 67896 transitions. [2023-12-15 17:30:06,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 17:30:06,103 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:06,104 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, 3, 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] [2023-12-15 17:30:06,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-15 17:30:06,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-12-15 17:30:06,308 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:06,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:06,308 INFO L85 PathProgramCache]: Analyzing trace with hash 133090187, now seen corresponding path program 1 times [2023-12-15 17:30:06,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:06,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540808819] [2023-12-15 17:30:06,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:06,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:06,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 17:30:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:30:06,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 17:30:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 17:30:06,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-15 17:30:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540808819] [2023-12-15 17:30:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540808819] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:06,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772306705] [2023-12-15 17:30:06,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:06,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:06,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:06,412 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:06,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 17:30:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:06,509 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:30:06,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:06,545 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-15 17:30:06,546 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:06,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772306705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:06,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:06,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:06,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301439505] [2023-12-15 17:30:06,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:06,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:06,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:06,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:06,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:06,548 INFO L87 Difference]: Start difference. First operand 49721 states and 67896 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:30:08,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:08,075 INFO L93 Difference]: Finished difference Result 87253 states and 118366 transitions. [2023-12-15 17:30:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:08,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 145 [2023-12-15 17:30:08,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:08,205 INFO L225 Difference]: With dead ends: 87253 [2023-12-15 17:30:08,205 INFO L226 Difference]: Without dead ends: 50443 [2023-12-15 17:30:08,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 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 17:30:08,264 INFO L413 NwaCegarLoop]: 4123 mSDtfsCounter, 4085 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:08,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4262 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:08,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50443 states. [2023-12-15 17:30:10,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50443 to 49721. [2023-12-15 17:30:10,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49721 states, 41854 states have (on average 1.3172217709179528) internal successors, (55131), 42335 states have internal predecessors, (55131), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2023-12-15 17:30:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49721 states to 49721 states and 67596 transitions. [2023-12-15 17:30:10,223 INFO L78 Accepts]: Start accepts. Automaton has 49721 states and 67596 transitions. Word has length 145 [2023-12-15 17:30:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:10,223 INFO L495 AbstractCegarLoop]: Abstraction has 49721 states and 67596 transitions. [2023-12-15 17:30:10,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:30:10,224 INFO L276 IsEmpty]: Start isEmpty. Operand 49721 states and 67596 transitions. [2023-12-15 17:30:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 17:30:10,268 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:10,268 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, 3, 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] [2023-12-15 17:30:10,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:10,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-15 17:30:10,473 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:10,473 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:10,473 INFO L85 PathProgramCache]: Analyzing trace with hash -40298357, now seen corresponding path program 1 times [2023-12-15 17:30:10,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:10,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916411146] [2023-12-15 17:30:10,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:10,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:10,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:10,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 17:30:10,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:30:10,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-12-15 17:30:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 17:30:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:10,527 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-12-15 17:30:10,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:10,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916411146] [2023-12-15 17:30:10,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916411146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:10,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:10,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:30:10,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132599364] [2023-12-15 17:30:10,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:10,529 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:30:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:30:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:30:10,530 INFO L87 Difference]: Start difference. First operand 49721 states and 67596 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 17:30:12,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:12,179 INFO L93 Difference]: Finished difference Result 95091 states and 127259 transitions. [2023-12-15 17:30:12,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:30:12,179 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 145 [2023-12-15 17:30:12,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:12,290 INFO L225 Difference]: With dead ends: 95091 [2023-12-15 17:30:12,290 INFO L226 Difference]: Without dead ends: 47513 [2023-12-15 17:30:12,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:30:12,353 INFO L413 NwaCegarLoop]: 4059 mSDtfsCounter, 273 mSDsluCounter, 11974 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 16033 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:12,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 16033 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 17:30:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47513 states. [2023-12-15 17:30:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47513 to 44823. [2023-12-15 17:30:13,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44823 states, 38040 states have (on average 1.3237381703470033) internal successors, (50355), 38933 states have internal predecessors, (50355), 3253 states have call successors, (3253), 2472 states have call predecessors, (3253), 3528 states have return successors, (6773), 3449 states have call predecessors, (6773), 3253 states have call successors, (6773) [2023-12-15 17:30:13,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44823 states to 44823 states and 60381 transitions. [2023-12-15 17:30:13,947 INFO L78 Accepts]: Start accepts. Automaton has 44823 states and 60381 transitions. Word has length 145 [2023-12-15 17:30:13,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:13,947 INFO L495 AbstractCegarLoop]: Abstraction has 44823 states and 60381 transitions. [2023-12-15 17:30:13,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 17:30:13,947 INFO L276 IsEmpty]: Start isEmpty. Operand 44823 states and 60381 transitions. [2023-12-15 17:30:13,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-12-15 17:30:13,981 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:13,981 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, 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] [2023-12-15 17:30:13,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-15 17:30:13,981 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:13,982 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:13,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2081503833, now seen corresponding path program 1 times [2023-12-15 17:30:13,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:13,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336457139] [2023-12-15 17:30:13,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:13,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:14,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-12-15 17:30:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-15 17:30:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-12-15 17:30:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:14,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-12-15 17:30:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-12-15 17:30:14,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:14,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336457139] [2023-12-15 17:30:14,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336457139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:14,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:14,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:30:14,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920188377] [2023-12-15 17:30:14,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:14,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:30:14,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:14,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:30:14,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:30:14,037 INFO L87 Difference]: Start difference. First operand 44823 states and 60381 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 17:30:15,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:15,358 INFO L93 Difference]: Finished difference Result 79543 states and 106038 transitions. [2023-12-15 17:30:15,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:30:15,359 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 145 [2023-12-15 17:30:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:15,435 INFO L225 Difference]: With dead ends: 79543 [2023-12-15 17:30:15,435 INFO L226 Difference]: Without dead ends: 36855 [2023-12-15 17:30:15,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:30:15,481 INFO L413 NwaCegarLoop]: 4058 mSDtfsCounter, 273 mSDsluCounter, 11973 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 16031 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:15,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 16031 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-15 17:30:15,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36855 states. [2023-12-15 17:30:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36855 to 34305. [2023-12-15 17:30:16,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34305 states, 29268 states have (on average 1.3431392647259806) internal successors, (39311), 29905 states have internal predecessors, (39311), 2427 states have call successors, (2427), 1856 states have call predecessors, (2427), 2608 states have return successors, (4799), 2559 states have call predecessors, (4799), 2427 states have call successors, (4799) [2023-12-15 17:30:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34305 states to 34305 states and 46537 transitions. [2023-12-15 17:30:16,655 INFO L78 Accepts]: Start accepts. Automaton has 34305 states and 46537 transitions. Word has length 145 [2023-12-15 17:30:16,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:16,655 INFO L495 AbstractCegarLoop]: Abstraction has 34305 states and 46537 transitions. [2023-12-15 17:30:16,655 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), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-12-15 17:30:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand 34305 states and 46537 transitions. [2023-12-15 17:30:16,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-15 17:30:16,682 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:16,682 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, 3, 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] [2023-12-15 17:30:16,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-15 17:30:16,682 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:16,682 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:16,683 INFO L85 PathProgramCache]: Analyzing trace with hash 213627841, now seen corresponding path program 1 times [2023-12-15 17:30:16,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:16,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956350810] [2023-12-15 17:30:16,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:16,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:16,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:16,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:30:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 17:30:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,764 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-15 17:30:16,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:16,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956350810] [2023-12-15 17:30:16,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956350810] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:16,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491987378] [2023-12-15 17:30:16,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:16,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:16,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:16,766 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:16,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-12-15 17:30:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:16,866 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:30:16,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:16,893 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-15 17:30:16,893 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:16,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491987378] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:16,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:16,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216419388] [2023-12-15 17:30:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:16,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:16,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:16,897 INFO L87 Difference]: Start difference. First operand 34305 states and 46537 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:30:18,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:18,028 INFO L93 Difference]: Finished difference Result 56199 states and 77803 transitions. [2023-12-15 17:30:18,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:18,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 149 [2023-12-15 17:30:18,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:18,094 INFO L225 Difference]: With dead ends: 56199 [2023-12-15 17:30:18,094 INFO L226 Difference]: Without dead ends: 34391 [2023-12-15 17:30:18,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 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 17:30:18,122 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 122 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 8292 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:18,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 8292 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:18,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34391 states. [2023-12-15 17:30:19,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34391 to 34305. [2023-12-15 17:30:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34305 states, 29268 states have (on average 1.319564028973623) internal successors, (38621), 29905 states have internal predecessors, (38621), 2427 states have call successors, (2427), 1856 states have call predecessors, (2427), 2608 states have return successors, (4799), 2559 states have call predecessors, (4799), 2427 states have call successors, (4799) [2023-12-15 17:30:19,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34305 states to 34305 states and 45847 transitions. [2023-12-15 17:30:19,220 INFO L78 Accepts]: Start accepts. Automaton has 34305 states and 45847 transitions. Word has length 149 [2023-12-15 17:30:19,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:19,220 INFO L495 AbstractCegarLoop]: Abstraction has 34305 states and 45847 transitions. [2023-12-15 17:30:19,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:30:19,221 INFO L276 IsEmpty]: Start isEmpty. Operand 34305 states and 45847 transitions. [2023-12-15 17:30:19,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-15 17:30:19,246 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:19,246 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, 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] [2023-12-15 17:30:19,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:19,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:19,450 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:19,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:19,451 INFO L85 PathProgramCache]: Analyzing trace with hash 22552195, now seen corresponding path program 1 times [2023-12-15 17:30:19,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:19,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432249146] [2023-12-15 17:30:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:19,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:19,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:19,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:30:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 17:30:19,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-15 17:30:19,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:19,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432249146] [2023-12-15 17:30:19,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432249146] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:19,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386070505] [2023-12-15 17:30:19,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:19,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:19,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:19,532 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:19,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-12-15 17:30:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:19,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:19,621 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:19,638 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 17:30:19,638 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:19,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386070505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:19,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:19,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:19,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049711152] [2023-12-15 17:30:19,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:19,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:19,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:19,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:19,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:19,640 INFO L87 Difference]: Start difference. First operand 34305 states and 45847 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:30:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:20,735 INFO L93 Difference]: Finished difference Result 59056 states and 79662 transitions. [2023-12-15 17:30:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:20,735 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 149 [2023-12-15 17:30:20,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:20,794 INFO L225 Difference]: With dead ends: 59056 [2023-12-15 17:30:20,794 INFO L226 Difference]: Without dead ends: 29190 [2023-12-15 17:30:20,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 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 17:30:20,826 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 4100 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4100 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:20,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4100 Valid, 4136 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:20,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29190 states. [2023-12-15 17:30:21,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29190 to 28076. [2023-12-15 17:30:21,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28076 states, 24079 states have (on average 1.2930769550230492) internal successors, (31136), 24573 states have internal predecessors, (31136), 1931 states have call successors, (1931), 1480 states have call predecessors, (1931), 2064 states have return successors, (3537), 2030 states have call predecessors, (3537), 1931 states have call successors, (3537) [2023-12-15 17:30:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28076 states to 28076 states and 36604 transitions. [2023-12-15 17:30:21,740 INFO L78 Accepts]: Start accepts. Automaton has 28076 states and 36604 transitions. Word has length 149 [2023-12-15 17:30:21,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:21,741 INFO L495 AbstractCegarLoop]: Abstraction has 28076 states and 36604 transitions. [2023-12-15 17:30:21,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:30:21,741 INFO L276 IsEmpty]: Start isEmpty. Operand 28076 states and 36604 transitions. [2023-12-15 17:30:21,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-15 17:30:21,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:21,755 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, 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] [2023-12-15 17:30:21,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:21,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:21,959 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:21,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:21,960 INFO L85 PathProgramCache]: Analyzing trace with hash 231065803, now seen corresponding path program 1 times [2023-12-15 17:30:21,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:21,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024704173] [2023-12-15 17:30:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:21,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:21,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:21,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:21,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:22,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:22,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:22,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-12-15 17:30:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:22,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-12-15 17:30:22,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,042 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-15 17:30:22,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024704173] [2023-12-15 17:30:22,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024704173] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:22,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302859195] [2023-12-15 17:30:22,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:22,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:22,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:22,057 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:22,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-12-15 17:30:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:22,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:30:22,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:22,196 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-15 17:30:22,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:22,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302859195] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:22,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:22,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:22,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604471468] [2023-12-15 17:30:22,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:22,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:22,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:22,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:22,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:22,198 INFO L87 Difference]: Start difference. First operand 28076 states and 36604 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:30:23,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:23,061 INFO L93 Difference]: Finished difference Result 46492 states and 61510 transitions. [2023-12-15 17:30:23,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:23,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 149 [2023-12-15 17:30:23,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:23,110 INFO L225 Difference]: With dead ends: 46492 [2023-12-15 17:30:23,110 INFO L226 Difference]: Without dead ends: 28146 [2023-12-15 17:30:23,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 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 17:30:23,136 INFO L413 NwaCegarLoop]: 4228 mSDtfsCounter, 117 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8321 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:23,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8321 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28146 states. [2023-12-15 17:30:24,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28146 to 28076. [2023-12-15 17:30:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28076 states, 24079 states have (on average 1.2652518792308651) internal successors, (30466), 24573 states have internal predecessors, (30466), 1931 states have call successors, (1931), 1480 states have call predecessors, (1931), 2064 states have return successors, (3537), 2030 states have call predecessors, (3537), 1931 states have call successors, (3537) [2023-12-15 17:30:24,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28076 states to 28076 states and 35934 transitions. [2023-12-15 17:30:24,087 INFO L78 Accepts]: Start accepts. Automaton has 28076 states and 35934 transitions. Word has length 149 [2023-12-15 17:30:24,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:24,088 INFO L495 AbstractCegarLoop]: Abstraction has 28076 states and 35934 transitions. [2023-12-15 17:30:24,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:30:24,088 INFO L276 IsEmpty]: Start isEmpty. Operand 28076 states and 35934 transitions. [2023-12-15 17:30:24,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-12-15 17:30:24,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:24,102 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, 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] [2023-12-15 17:30:24,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:24,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-12-15 17:30:24,307 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:24,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:24,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1895509714, now seen corresponding path program 1 times [2023-12-15 17:30:24,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:24,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182964072] [2023-12-15 17:30:24,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:24,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:24,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:24,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:24,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:24,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:24,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:30:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-12-15 17:30:24,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,404 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-15 17:30:24,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:24,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182964072] [2023-12-15 17:30:24,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182964072] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:24,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552961938] [2023-12-15 17:30:24,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:24,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:24,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:24,409 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:24,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-12-15 17:30:24,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:24,501 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:30:24,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-12-15 17:30:24,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:24,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552961938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:24,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:24,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:24,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213774178] [2023-12-15 17:30:24,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:24,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:24,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:24,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:24,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:24,518 INFO L87 Difference]: Start difference. First operand 28076 states and 35934 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:30:25,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:25,232 INFO L93 Difference]: Finished difference Result 40654 states and 52475 transitions. [2023-12-15 17:30:25,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:25,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 150 [2023-12-15 17:30:25,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:25,295 INFO L225 Difference]: With dead ends: 40654 [2023-12-15 17:30:25,295 INFO L226 Difference]: Without dead ends: 28124 [2023-12-15 17:30:25,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 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 17:30:25,398 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 135 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 8313 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:25,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 8313 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:25,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28124 states. [2023-12-15 17:30:26,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28124 to 28076. [2023-12-15 17:30:26,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28076 states, 24079 states have (on average 1.2547032684081565) internal successors, (30212), 24573 states have internal predecessors, (30212), 1931 states have call successors, (1931), 1480 states have call predecessors, (1931), 2064 states have return successors, (3537), 2030 states have call predecessors, (3537), 1931 states have call successors, (3537) [2023-12-15 17:30:26,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28076 states to 28076 states and 35680 transitions. [2023-12-15 17:30:26,337 INFO L78 Accepts]: Start accepts. Automaton has 28076 states and 35680 transitions. Word has length 150 [2023-12-15 17:30:26,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:26,338 INFO L495 AbstractCegarLoop]: Abstraction has 28076 states and 35680 transitions. [2023-12-15 17:30:26,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:30:26,338 INFO L276 IsEmpty]: Start isEmpty. Operand 28076 states and 35680 transitions. [2023-12-15 17:30:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-15 17:30:26,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:26,354 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, 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] [2023-12-15 17:30:26,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:26,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:26,572 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:26,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:26,572 INFO L85 PathProgramCache]: Analyzing trace with hash -35872841, now seen corresponding path program 1 times [2023-12-15 17:30:26,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:26,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440437510] [2023-12-15 17:30:26,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:26,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:26,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:30:26,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 17:30:26,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,710 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-15 17:30:26,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:26,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440437510] [2023-12-15 17:30:26,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440437510] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:26,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792472413] [2023-12-15 17:30:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:26,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:26,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:26,711 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:26,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-12-15 17:30:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:26,826 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-15 17:30:26,828 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:26,896 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-12-15 17:30:26,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:26,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792472413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:26,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:26,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-12-15 17:30:26,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490888138] [2023-12-15 17:30:26,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:26,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:30:26,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:26,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:30:26,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-12-15 17:30:26,897 INFO L87 Difference]: Start difference. First operand 28076 states and 35680 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 17:30:27,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:27,669 INFO L93 Difference]: Finished difference Result 37698 states and 47779 transitions. [2023-12-15 17:30:27,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 17:30:27,669 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 151 [2023-12-15 17:30:27,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:27,700 INFO L225 Difference]: With dead ends: 37698 [2023-12-15 17:30:27,700 INFO L226 Difference]: Without dead ends: 20707 [2023-12-15 17:30:27,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-12-15 17:30:27,716 INFO L413 NwaCegarLoop]: 4049 mSDtfsCounter, 4122 mSDsluCounter, 8052 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 12101 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:27,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 12101 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:30:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20707 states. [2023-12-15 17:30:28,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20707 to 20647. [2023-12-15 17:30:28,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20647 states, 17810 states have (on average 1.2582257158899495) internal successors, (22409), 18137 states have internal predecessors, (22409), 1387 states have call successors, (1387), 1056 states have call predecessors, (1387), 1448 states have return successors, (2451), 1457 states have call predecessors, (2451), 1387 states have call successors, (2451) [2023-12-15 17:30:28,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20647 states to 20647 states and 26247 transitions. [2023-12-15 17:30:28,404 INFO L78 Accepts]: Start accepts. Automaton has 20647 states and 26247 transitions. Word has length 151 [2023-12-15 17:30:28,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:28,404 INFO L495 AbstractCegarLoop]: Abstraction has 20647 states and 26247 transitions. [2023-12-15 17:30:28,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 17:30:28,404 INFO L276 IsEmpty]: Start isEmpty. Operand 20647 states and 26247 transitions. [2023-12-15 17:30:28,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-15 17:30:28,412 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:28,413 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, 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] [2023-12-15 17:30:28,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:28,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:28,617 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:28,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:28,618 INFO L85 PathProgramCache]: Analyzing trace with hash 435483509, now seen corresponding path program 1 times [2023-12-15 17:30:28,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:28,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277148670] [2023-12-15 17:30:28,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:28,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-12-15 17:30:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-12-15 17:30:28,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-12-15 17:30:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-12-15 17:30:28,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-12-15 17:30:28,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-12-15 17:30:28,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:30:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:28,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-12-15 17:30:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-12-15 17:30:28,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:28,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277148670] [2023-12-15 17:30:28,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277148670] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:28,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625822972] [2023-12-15 17:30:28,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:28,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:28,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:28,688 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:28,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-12-15 17:30:28,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:28,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 17:30:28,777 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-15 17:30:28,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:28,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625822972] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:28,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:28,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-12-15 17:30:28,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91545045] [2023-12-15 17:30:28,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:28,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 17:30:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 17:30:28,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:30:28,783 INFO L87 Difference]: Start difference. First operand 20647 states and 26247 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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) Received shutdown request... [2023-12-15 17:30:28,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 17:30:28,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:30:28,823 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 14 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 724 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:28,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 724 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:30:28,824 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:30:28,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:28,834 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 17:30:28,860 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:30:29,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-12-15 17:30:29,030 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (20647states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (590 states constructed, input type IntersectNwa). [2023-12-15 17:30:29,032 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:30:29,034 INFO L445 BasicCegarLoop]: Path program 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] [2023-12-15 17:30:29,036 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:30:29,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:30:29 BoogieIcfgContainer [2023-12-15 17:30:29,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:30:29,038 INFO L158 Benchmark]: Toolchain (without parser) took 56610.44ms. Allocated memory was 327.2MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 283.5MB in the beginning and 4.8GB in the end (delta: -4.5GB). Peak memory consumption was 1.9GB. Max. memory is 8.0GB. [2023-12-15 17:30:29,038 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 230.7MB. Free memory is still 179.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:30:29,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2120.51ms. Allocated memory was 327.2MB in the beginning and 475.0MB in the end (delta: 147.8MB). Free memory was 283.5MB in the beginning and 343.6MB in the end (delta: -60.2MB). Peak memory consumption was 162.6MB. Max. memory is 8.0GB. [2023-12-15 17:30:29,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 306.70ms. Allocated memory is still 475.0MB. Free memory was 343.6MB in the beginning and 264.0MB in the end (delta: 79.6MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. [2023-12-15 17:30:29,038 INFO L158 Benchmark]: Boogie Preprocessor took 531.55ms. Allocated memory is still 475.0MB. Free memory was 264.0MB in the beginning and 279.2MB in the end (delta: -15.2MB). Peak memory consumption was 63.4MB. Max. memory is 8.0GB. [2023-12-15 17:30:29,039 INFO L158 Benchmark]: RCFGBuilder took 5728.28ms. Allocated memory was 475.0MB in the beginning and 1.3GB in the end (delta: 807.4MB). Free memory was 279.2MB in the beginning and 758.2MB in the end (delta: -479.0MB). Peak memory consumption was 329.0MB. Max. memory is 8.0GB. [2023-12-15 17:30:29,040 INFO L158 Benchmark]: TraceAbstraction took 47918.63ms. Allocated memory was 1.3GB in the beginning and 6.7GB in the end (delta: 5.5GB). Free memory was 757.7MB in the beginning and 4.8GB in the end (delta: -4.1GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-15 17:30:29,045 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 230.7MB. Free memory is still 179.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2120.51ms. Allocated memory was 327.2MB in the beginning and 475.0MB in the end (delta: 147.8MB). Free memory was 283.5MB in the beginning and 343.6MB in the end (delta: -60.2MB). Peak memory consumption was 162.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 306.70ms. Allocated memory is still 475.0MB. Free memory was 343.6MB in the beginning and 264.0MB in the end (delta: 79.6MB). Peak memory consumption was 78.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 531.55ms. Allocated memory is still 475.0MB. Free memory was 264.0MB in the beginning and 279.2MB in the end (delta: -15.2MB). Peak memory consumption was 63.4MB. Max. memory is 8.0GB. * RCFGBuilder took 5728.28ms. Allocated memory was 475.0MB in the beginning and 1.3GB in the end (delta: 807.4MB). Free memory was 279.2MB in the beginning and 758.2MB in the end (delta: -479.0MB). Peak memory consumption was 329.0MB. Max. memory is 8.0GB. * TraceAbstraction took 47918.63ms. Allocated memory was 1.3GB in the beginning and 6.7GB in the end (delta: 5.5GB). Free memory was 757.7MB in the beginning and 4.8GB in the end (delta: -4.1GB). Peak memory consumption was 1.4GB. 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 (20647states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (590 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 (20647states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (590 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2241 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 47.9s, OverallIterations: 24, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 64475 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64362 mSDsluCounter, 242670 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 147281 mSDsCounter, 458 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6515 IncrementalHoareTripleChecker+Invalid, 6973 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 458 mSolverCounterUnsat, 95389 mSDtfsCounter, 6515 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2855 GetRequests, 2684 SyntacticMatches, 0 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49841occurred in iteration=14, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.4s AutomataMinimizationTime, 23 MinimizatonAttempts, 15173 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 5120 NumberOfCodeBlocks, 5120 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 5080 ConstructedInterpolants, 0 QuantifiedInterpolants, 8082 SizeOfPredicates, 1 NumberOfNonLiveVariables, 8058 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 40 InterpolantComputations, 24 PerfectInterpolantSequences, 2383/2796 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