/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_label49+token_ring.06.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:42:33,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:42:33,807 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 17:42:33,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:42:33,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:42:33,834 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:42:33,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:42:33,835 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:42:33,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:42:33,838 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:42:33,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:42:33,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:42:33,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:42:33,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:42:33,841 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:42:33,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:42:33,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:42:33,841 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:42:33,841 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:42:33,841 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:42:33,841 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:42:33,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:42:33,842 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:42:33,842 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:42:33,842 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:42:33,842 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:42:33,842 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:42:33,843 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:42:33,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:42:33,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:42:33,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:42:33,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:42:33,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:42:33,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:42:33,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:42:33,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:42:33,845 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:42:33,845 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:42:34,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:42:34,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:42:34,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:42:34,053 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:42:34,056 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:42:34,057 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label49+token_ring.06.cil-1.c [2023-12-15 17:42:34,941 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:42:35,321 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:42:35,322 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label49+token_ring.06.cil-1.c [2023-12-15 17:42:35,363 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820aa0201/49ce80e3a0f74d809b4e442742be1e68/FLAG7e2a17b0f [2023-12-15 17:42:35,375 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820aa0201/49ce80e3a0f74d809b4e442742be1e68 [2023-12-15 17:42:35,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:42:35,377 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:42:35,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:42:35,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:42:35,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:42:35,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:42:35" (1/1) ... [2023-12-15 17:42:35,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717c2d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:35, skipping insertion in model container [2023-12-15 17:42:35,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:42:35" (1/1) ... [2023-12-15 17:42:35,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:42:36,671 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_label49+token_ring.06.cil-1.c[380593,380606] [2023-12-15 17:42:36,695 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_label49+token_ring.06.cil-1.c[383339,383352] [2023-12-15 17:42:36,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:42:36,829 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:42:37,376 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_label49+token_ring.06.cil-1.c[380593,380606] [2023-12-15 17:42:37,398 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_label49+token_ring.06.cil-1.c[383339,383352] [2023-12-15 17:42:37,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:42:37,451 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:42:37,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37 WrapperNode [2023-12-15 17:42:37,452 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:42:37,453 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:42:37,453 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:42:37,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:42:37,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:37,519 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:37,835 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12879 [2023-12-15 17:42:37,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:42:37,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:42:37,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:42:37,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:42:37,843 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:37,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:37,880 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,029 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 17:42:38,030 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:42:38,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:42:38,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:42:38,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:42:38,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (1/1) ... [2023-12-15 17:42:38,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:42:38,324 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:42:38,334 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 17:42:38,351 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 17:42:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:42:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:42:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:42:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:42:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:42:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:42:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:42:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-15 17:42:38,368 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-15 17:42:38,368 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:42:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:42:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:42:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:42:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:42:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:42:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:42:38,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:42:38,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:42:38,477 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:42:38,479 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:42:43,849 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:42:43,916 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:42:43,917 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-15 17:42:43,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:42:43 BoogieIcfgContainer [2023-12-15 17:42:43,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:42:43,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:42:43,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:42:43,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:42:43,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:42:35" (1/3) ... [2023-12-15 17:42:43,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b392293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:42:43, skipping insertion in model container [2023-12-15 17:42:43,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:42:37" (2/3) ... [2023-12-15 17:42:43,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b392293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:42:43, skipping insertion in model container [2023-12-15 17:42:43,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:42:43" (3/3) ... [2023-12-15 17:42:43,925 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.06.cil-1.c [2023-12-15 17:42:43,936 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:42:43,936 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:42:43,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:42:44,004 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;@2e4f2315, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:42:44,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:42:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-15 17:42:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:44,037 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:44,038 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:44,039 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:44,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:44,042 INFO L85 PathProgramCache]: Analyzing trace with hash 633022234, now seen corresponding path program 1 times [2023-12-15 17:42:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:44,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176964435] [2023-12-15 17:42:44,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:44,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:44,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:44,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:44,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:44,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:44,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:44,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:42:44,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:44,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176964435] [2023-12-15 17:42:44,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176964435] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:44,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:44,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-15 17:42:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80892850] [2023-12-15 17:42:44,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:44,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 17:42:44,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:44,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 17:42:44,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 17:42:44,410 INFO L87 Difference]: Start difference. First operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:45,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:45,189 INFO L93 Difference]: Finished difference Result 4743 states and 8886 transitions. [2023-12-15 17:42:45,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 17:42:45,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:45,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:45,207 INFO L225 Difference]: With dead ends: 4743 [2023-12-15 17:42:45,207 INFO L226 Difference]: Without dead ends: 2406 [2023-12-15 17:42:45,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 17:42:45,215 INFO L413 NwaCegarLoop]: 4154 mSDtfsCounter, 567 mSDsluCounter, 12090 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 16244 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:45,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 16244 Invalid, 648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 17:42:45,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2023-12-15 17:42:45,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2336. [2023-12-15 17:42:45,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8460537727666955) internal successors, (4257), 2309 states have internal predecessors, (4257), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-12-15 17:42:45,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4299 transitions. [2023-12-15 17:42:45,302 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4299 transitions. Word has length 102 [2023-12-15 17:42:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:45,302 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 4299 transitions. [2023-12-15 17:42:45,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4299 transitions. [2023-12-15 17:42:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:45,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:45,305 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:45,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:42:45,306 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:45,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:45,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1721363048, now seen corresponding path program 1 times [2023-12-15 17:42:45,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:45,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298204314] [2023-12-15 17:42:45,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:45,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:45,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:45,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:45,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:45,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:45,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:45,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:45,678 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 17:42:45,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:45,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298204314] [2023-12-15 17:42:45,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298204314] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:45,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:45,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:45,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989794823] [2023-12-15 17:42:45,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:45,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:45,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:45,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:45,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:45,681 INFO L87 Difference]: Start difference. First operand 2336 states and 4299 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:47,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:47,650 INFO L93 Difference]: Finished difference Result 2902 states and 5234 transitions. [2023-12-15 17:42:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:42:47,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:47,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:47,660 INFO L225 Difference]: With dead ends: 2902 [2023-12-15 17:42:47,660 INFO L226 Difference]: Without dead ends: 2699 [2023-12-15 17:42:47,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:42:47,662 INFO L413 NwaCegarLoop]: 4263 mSDtfsCounter, 4757 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21079 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:47,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21079 Invalid, 2245 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-12-15 17:42:47,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2023-12-15 17:42:47,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2548. [2023-12-15 17:42:47,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2493 states have (on average 1.829923786602487) internal successors, (4562), 2498 states have internal predecessors, (4562), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2023-12-15 17:42:47,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4645 transitions. [2023-12-15 17:42:47,723 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4645 transitions. Word has length 102 [2023-12-15 17:42:47,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:47,723 INFO L495 AbstractCegarLoop]: Abstraction has 2548 states and 4645 transitions. [2023-12-15 17:42:47,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:47,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4645 transitions. [2023-12-15 17:42:47,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:47,725 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:47,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:47,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:42:47,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:47,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:47,726 INFO L85 PathProgramCache]: Analyzing trace with hash 615029462, now seen corresponding path program 1 times [2023-12-15 17:42:47,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:47,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059475186] [2023-12-15 17:42:47,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:47,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:47,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:47,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:47,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:47,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:47,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:47,873 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 17:42:47,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:47,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059475186] [2023-12-15 17:42:47,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059475186] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:47,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:47,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:47,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660822357] [2023-12-15 17:42:47,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:47,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:47,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:47,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:47,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:47,875 INFO L87 Difference]: Start difference. First operand 2548 states and 4645 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:49,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:49,578 INFO L93 Difference]: Finished difference Result 3616 states and 6396 transitions. [2023-12-15 17:42:49,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:42:49,579 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:49,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:49,589 INFO L225 Difference]: With dead ends: 3616 [2023-12-15 17:42:49,589 INFO L226 Difference]: Without dead ends: 3203 [2023-12-15 17:42:49,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:42:49,591 INFO L413 NwaCegarLoop]: 4226 mSDtfsCounter, 4782 mSDsluCounter, 16764 mSDsCounter, 0 mSdLazyCounter, 1989 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 20990 SdHoareTripleChecker+Invalid, 2055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:49,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 20990 Invalid, 2055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1989 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:42:49,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2023-12-15 17:42:49,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 2936. [2023-12-15 17:42:49,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8022559041240747) internal successors, (5113), 2844 states have internal predecessors, (5113), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-15 17:42:49,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5266 transitions. [2023-12-15 17:42:49,662 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5266 transitions. Word has length 102 [2023-12-15 17:42:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:49,663 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5266 transitions. [2023-12-15 17:42:49,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:49,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5266 transitions. [2023-12-15 17:42:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:49,665 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:49,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:49,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:42:49,665 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:49,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:49,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1803455016, now seen corresponding path program 1 times [2023-12-15 17:42:49,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:49,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492959299] [2023-12-15 17:42:49,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:49,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:49,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:49,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:49,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:49,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:49,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:49,831 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 17:42:49,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:49,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492959299] [2023-12-15 17:42:49,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492959299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:49,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:49,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:49,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458005276] [2023-12-15 17:42:49,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:49,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:49,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:49,836 INFO L87 Difference]: Start difference. First operand 2936 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:50,596 INFO L93 Difference]: Finished difference Result 4009 states and 7040 transitions. [2023-12-15 17:42:50,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:42:50,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:50,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:50,608 INFO L225 Difference]: With dead ends: 4009 [2023-12-15 17:42:50,609 INFO L226 Difference]: Without dead ends: 3206 [2023-12-15 17:42:50,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:42:50,617 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4659 mSDsluCounter, 12253 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 16371 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:50,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 16371 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-15 17:42:50,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2023-12-15 17:42:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2936. [2023-12-15 17:42:50,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8004934790271414) internal successors, (5108), 2844 states have internal predecessors, (5108), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-15 17:42:50,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5261 transitions. [2023-12-15 17:42:50,697 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5261 transitions. Word has length 102 [2023-12-15 17:42:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:50,697 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5261 transitions. [2023-12-15 17:42:50,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:50,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5261 transitions. [2023-12-15 17:42:50,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:50,699 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:50,699 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:50,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:42:50,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:50,700 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:50,700 INFO L85 PathProgramCache]: Analyzing trace with hash 612381334, now seen corresponding path program 1 times [2023-12-15 17:42:50,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:50,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136444495] [2023-12-15 17:42:50,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:50,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:50,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:50,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:50,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:50,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:50,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:50,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:50,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:50,827 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 17:42:50,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:50,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136444495] [2023-12-15 17:42:50,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136444495] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:50,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:50,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:50,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530763324] [2023-12-15 17:42:50,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:50,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:50,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:50,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:50,831 INFO L87 Difference]: Start difference. First operand 2936 states and 5261 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:51,671 INFO L93 Difference]: Finished difference Result 4005 states and 7019 transitions. [2023-12-15 17:42:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:42:51,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:51,681 INFO L225 Difference]: With dead ends: 4005 [2023-12-15 17:42:51,681 INFO L226 Difference]: Without dead ends: 3202 [2023-12-15 17:42:51,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:42:51,686 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4571 mSDsluCounter, 16316 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4585 SdHoareTripleChecker+Valid, 20434 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:51,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4585 Valid, 20434 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:42:51,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2023-12-15 17:42:51,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2936. [2023-12-15 17:42:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.798731053930208) internal successors, (5103), 2844 states have internal predecessors, (5103), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-15 17:42:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5256 transitions. [2023-12-15 17:42:51,747 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5256 transitions. Word has length 102 [2023-12-15 17:42:51,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:51,747 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5256 transitions. [2023-12-15 17:42:51,747 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:51,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5256 transitions. [2023-12-15 17:42:51,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:51,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:51,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:51,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:42:51,749 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:51,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:51,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1937237528, now seen corresponding path program 1 times [2023-12-15 17:42:51,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:51,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545702022] [2023-12-15 17:42:51,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:51,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:51,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:51,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:51,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:51,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:51,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:51,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:51,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:51,874 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 17:42:51,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:51,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545702022] [2023-12-15 17:42:51,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545702022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:51,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:51,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:51,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703941469] [2023-12-15 17:42:51,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:51,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:51,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:51,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:51,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:51,876 INFO L87 Difference]: Start difference. First operand 2936 states and 5256 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:52,662 INFO L93 Difference]: Finished difference Result 4000 states and 6996 transitions. [2023-12-15 17:42:52,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:42:52,663 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:52,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:52,672 INFO L225 Difference]: With dead ends: 4000 [2023-12-15 17:42:52,672 INFO L226 Difference]: Without dead ends: 3197 [2023-12-15 17:42:52,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:42:52,675 INFO L413 NwaCegarLoop]: 4118 mSDtfsCounter, 4655 mSDsluCounter, 12253 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4669 SdHoareTripleChecker+Valid, 16371 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:52,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4669 Valid, 16371 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:42:52,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2023-12-15 17:42:52,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2936. [2023-12-15 17:42:52,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.7969686288332747) internal successors, (5098), 2844 states have internal predecessors, (5098), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2023-12-15 17:42:52,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5251 transitions. [2023-12-15 17:42:52,747 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5251 transitions. Word has length 102 [2023-12-15 17:42:52,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:52,748 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 5251 transitions. [2023-12-15 17:42:52,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5251 transitions. [2023-12-15 17:42:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:52,750 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:52,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:52,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:42:52,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:52,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:52,751 INFO L85 PathProgramCache]: Analyzing trace with hash -790971818, now seen corresponding path program 1 times [2023-12-15 17:42:52,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:52,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282151595] [2023-12-15 17:42:52,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:52,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:52,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:52,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:52,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:52,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:52,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:52,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:52,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:52,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:52,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:52,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:52,883 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 17:42:52,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:52,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282151595] [2023-12-15 17:42:52,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282151595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:52,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:52,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:52,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308785625] [2023-12-15 17:42:52,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:52,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:52,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:52,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:52,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:52,885 INFO L87 Difference]: Start difference. First operand 2936 states and 5251 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:54,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:54,443 INFO L93 Difference]: Finished difference Result 4993 states and 8567 transitions. [2023-12-15 17:42:54,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:42:54,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:54,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:54,457 INFO L225 Difference]: With dead ends: 4993 [2023-12-15 17:42:54,458 INFO L226 Difference]: Without dead ends: 4192 [2023-12-15 17:42:54,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:42:54,462 INFO L413 NwaCegarLoop]: 4262 mSDtfsCounter, 4748 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 21078 SdHoareTripleChecker+Invalid, 2163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:54,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 21078 Invalid, 2163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:42:54,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2023-12-15 17:42:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3723. [2023-12-15 17:42:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3536 states have (on average 1.7531108597285068) internal successors, (6199), 3547 states have internal predecessors, (6199), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2023-12-15 17:42:54,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 6498 transitions. [2023-12-15 17:42:54,544 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 6498 transitions. Word has length 102 [2023-12-15 17:42:54,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:54,544 INFO L495 AbstractCegarLoop]: Abstraction has 3723 states and 6498 transitions. [2023-12-15 17:42:54,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:54,544 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 6498 transitions. [2023-12-15 17:42:54,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:54,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:54,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:54,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:42:54,546 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:54,546 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:54,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1848809896, now seen corresponding path program 1 times [2023-12-15 17:42:54,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:54,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995864162] [2023-12-15 17:42:54,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:54,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:54,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:54,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:54,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:54,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:54,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:54,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:42:54,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:54,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995864162] [2023-12-15 17:42:54,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995864162] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:54,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:54,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:54,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936764309] [2023-12-15 17:42:54,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:54,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:54,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:54,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:54,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:54,654 INFO L87 Difference]: Start difference. First operand 3723 states and 6498 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:56,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:56,408 INFO L93 Difference]: Finished difference Result 8412 states and 14052 transitions. [2023-12-15 17:42:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:42:56,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:56,438 INFO L225 Difference]: With dead ends: 8412 [2023-12-15 17:42:56,438 INFO L226 Difference]: Without dead ends: 6824 [2023-12-15 17:42:56,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:42:56,445 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4978 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:56,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 21068 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:42:56,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6824 states. [2023-12-15 17:42:56,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6824 to 5288. [2023-12-15 17:42:56,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 4933 states have (on average 1.7034259071558888) internal successors, (8403), 4952 states have internal predecessors, (8403), 241 states have call successors, (241), 97 states have call predecessors, (241), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2023-12-15 17:42:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 8996 transitions. [2023-12-15 17:42:56,582 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 8996 transitions. Word has length 102 [2023-12-15 17:42:56,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:56,582 INFO L495 AbstractCegarLoop]: Abstraction has 5288 states and 8996 transitions. [2023-12-15 17:42:56,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 8996 transitions. [2023-12-15 17:42:56,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:56,585 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:56,585 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:56,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:42:56,585 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:56,586 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:56,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1303654934, now seen corresponding path program 1 times [2023-12-15 17:42:56,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:56,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011977429] [2023-12-15 17:42:56,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:56,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:56,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:56,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:56,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:56,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:56,717 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 17:42:56,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:56,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011977429] [2023-12-15 17:42:56,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011977429] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:56,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:56,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:56,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332573793] [2023-12-15 17:42:56,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:56,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:56,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:56,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:56,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:56,719 INFO L87 Difference]: Start difference. First operand 5288 states and 8996 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:58,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:42:58,509 INFO L93 Difference]: Finished difference Result 14195 states and 23402 transitions. [2023-12-15 17:42:58,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:42:58,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:42:58,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:42:58,538 INFO L225 Difference]: With dead ends: 14195 [2023-12-15 17:42:58,539 INFO L226 Difference]: Without dead ends: 11042 [2023-12-15 17:42:58,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:42:58,550 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4921 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:42:58,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4941 Valid, 21068 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:42:58,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2023-12-15 17:42:58,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8433. [2023-12-15 17:42:58,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8433 states, 7750 states have (on average 1.6589677419354838) internal successors, (12857), 7785 states have internal predecessors, (12857), 457 states have call successors, (457), 193 states have call predecessors, (457), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2023-12-15 17:42:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8433 states to 8433 states and 14076 transitions. [2023-12-15 17:42:58,858 INFO L78 Accepts]: Start accepts. Automaton has 8433 states and 14076 transitions. Word has length 102 [2023-12-15 17:42:58,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:42:58,858 INFO L495 AbstractCegarLoop]: Abstraction has 8433 states and 14076 transitions. [2023-12-15 17:42:58,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:42:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8433 states and 14076 transitions. [2023-12-15 17:42:58,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:42:58,864 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:42:58,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:42:58,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-15 17:42:58,864 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:42:58,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:42:58,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2142688596, now seen corresponding path program 1 times [2023-12-15 17:42:58,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:42:58,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188548118] [2023-12-15 17:42:58,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:42:58,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:42:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:58,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:42:58,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:58,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:42:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:58,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:42:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:58,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:42:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:58,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:42:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:42:58,984 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 17:42:58,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:42:58,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188548118] [2023-12-15 17:42:58,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188548118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:42:58,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:42:58,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:42:58,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319708389] [2023-12-15 17:42:58,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:42:58,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:42:58,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:42:58,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:42:58,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:42:58,986 INFO L87 Difference]: Start difference. First operand 8433 states and 14076 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:00,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:43:00,850 INFO L93 Difference]: Finished difference Result 25710 states and 42196 transitions. [2023-12-15 17:43:00,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:43:00,851 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:43:00,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:43:00,901 INFO L225 Difference]: With dead ends: 25710 [2023-12-15 17:43:00,902 INFO L226 Difference]: Without dead ends: 19412 [2023-12-15 17:43:00,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:43:00,923 INFO L413 NwaCegarLoop]: 4227 mSDtfsCounter, 4898 mSDsluCounter, 16762 mSDsCounter, 0 mSdLazyCounter, 1877 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 20989 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1877 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:43:00,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 20989 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1877 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:43:00,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19412 states. [2023-12-15 17:43:01,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19412 to 14723. [2023-12-15 17:43:01,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14723 states, 13400 states have (on average 1.6266417910447761) internal successors, (21797), 13467 states have internal predecessors, (21797), 873 states have call successors, (873), 385 states have call predecessors, (873), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2023-12-15 17:43:01,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14723 states to 14723 states and 24398 transitions. [2023-12-15 17:43:01,380 INFO L78 Accepts]: Start accepts. Automaton has 14723 states and 24398 transitions. Word has length 102 [2023-12-15 17:43:01,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:43:01,381 INFO L495 AbstractCegarLoop]: Abstraction has 14723 states and 24398 transitions. [2023-12-15 17:43:01,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 14723 states and 24398 transitions. [2023-12-15 17:43:01,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:43:01,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:43:01,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:43:01,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-15 17:43:01,389 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:43:01,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:43:01,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2125213098, now seen corresponding path program 1 times [2023-12-15 17:43:01,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:43:01,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190218117] [2023-12-15 17:43:01,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:43:01,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:43:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:43:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:01,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:43:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:01,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:43:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:01,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:43:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:01,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:43:01,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:01,503 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 17:43:01,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:43:01,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190218117] [2023-12-15 17:43:01,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190218117] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:43:01,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:43:01,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:43:01,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81077323] [2023-12-15 17:43:01,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:43:01,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:43:01,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:43:01,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:43:01,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:43:01,505 INFO L87 Difference]: Start difference. First operand 14723 states and 24398 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:43:03,723 INFO L93 Difference]: Finished difference Result 48260 states and 79600 transitions. [2023-12-15 17:43:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:43:03,724 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:43:03,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:43:03,834 INFO L225 Difference]: With dead ends: 48260 [2023-12-15 17:43:03,834 INFO L226 Difference]: Without dead ends: 35672 [2023-12-15 17:43:03,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:43:03,885 INFO L413 NwaCegarLoop]: 4257 mSDtfsCounter, 4789 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-12-15 17:43:03,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 21068 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-12-15 17:43:03,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35672 states. [2023-12-15 17:43:04,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35672 to 27303. [2023-12-15 17:43:04,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27303 states, 24732 states have (on average 1.6068655992236778) internal successors, (39741), 24863 states have internal predecessors, (39741), 1673 states have call successors, (1673), 769 states have call predecessors, (1673), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2023-12-15 17:43:04,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27303 states to 27303 states and 45528 transitions. [2023-12-15 17:43:04,917 INFO L78 Accepts]: Start accepts. Automaton has 27303 states and 45528 transitions. Word has length 102 [2023-12-15 17:43:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:43:04,918 INFO L495 AbstractCegarLoop]: Abstraction has 27303 states and 45528 transitions. [2023-12-15 17:43:04,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:04,918 INFO L276 IsEmpty]: Start isEmpty. Operand 27303 states and 45528 transitions. [2023-12-15 17:43:04,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:43:04,934 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:43:04,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:43:04,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-15 17:43:04,935 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:43:04,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:43:04,935 INFO L85 PathProgramCache]: Analyzing trace with hash 92417300, now seen corresponding path program 1 times [2023-12-15 17:43:04,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:43:04,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862497506] [2023-12-15 17:43:04,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:43:04,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:43:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:04,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:43:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:04,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:43:04,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:43:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:05,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:43:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:05,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:43:05,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:05,176 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 17:43:05,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:43:05,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862497506] [2023-12-15 17:43:05,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862497506] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:43:05,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:43:05,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:43:05,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838595901] [2023-12-15 17:43:05,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:43:05,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:43:05,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:43:05,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:43:05,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:43:05,178 INFO L87 Difference]: Start difference. First operand 27303 states and 45528 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:07,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:43:07,743 INFO L93 Difference]: Finished difference Result 92400 states and 154688 transitions. [2023-12-15 17:43:07,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:43:07,744 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:43:07,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:43:07,959 INFO L225 Difference]: With dead ends: 92400 [2023-12-15 17:43:07,959 INFO L226 Difference]: Without dead ends: 67232 [2023-12-15 17:43:08,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:43:08,032 INFO L413 NwaCegarLoop]: 4259 mSDtfsCounter, 4819 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 21070 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:43:08,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 21070 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-12-15 17:43:08,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67232 states. [2023-12-15 17:43:09,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67232 to 52463. [2023-12-15 17:43:09,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52463 states, 47460 states have (on average 1.596228402865571) internal successors, (75757), 47719 states have internal predecessors, (75757), 3209 states have call successors, (3209), 1537 states have call predecessors, (3209), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2023-12-15 17:43:10,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52463 states to 52463 states and 89246 transitions. [2023-12-15 17:43:10,073 INFO L78 Accepts]: Start accepts. Automaton has 52463 states and 89246 transitions. Word has length 102 [2023-12-15 17:43:10,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:43:10,074 INFO L495 AbstractCegarLoop]: Abstraction has 52463 states and 89246 transitions. [2023-12-15 17:43:10,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand 52463 states and 89246 transitions. [2023-12-15 17:43:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:43:10,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:43:10,109 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:43:10,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-15 17:43:10,110 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:43:10,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:43:10,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1826521750, now seen corresponding path program 1 times [2023-12-15 17:43:10,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:43:10,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234413924] [2023-12-15 17:43:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:43:10,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:43:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:10,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:43:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:10,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:43:10,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:10,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:43:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:10,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:43:10,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:43:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:10,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-15 17:43:10,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:43:10,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234413924] [2023-12-15 17:43:10,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234413924] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:43:10,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:43:10,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:43:10,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542847707] [2023-12-15 17:43:10,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:43:10,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:43:10,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:43:10,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:43:10,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:43:10,222 INFO L87 Difference]: Start difference. First operand 52463 states and 89246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:14,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:43:14,383 INFO L93 Difference]: Finished difference Result 178760 states and 307368 transitions. [2023-12-15 17:43:14,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:43:14,384 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:43:14,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:43:15,116 INFO L225 Difference]: With dead ends: 178760 [2023-12-15 17:43:15,116 INFO L226 Difference]: Without dead ends: 128432 [2023-12-15 17:43:15,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:43:15,213 INFO L413 NwaCegarLoop]: 4258 mSDtfsCounter, 4770 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2071 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 21069 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2071 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-15 17:43:15,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 21069 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2071 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-15 17:43:15,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128432 states. [2023-12-15 17:43:18,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128432 to 102783. [2023-12-15 17:43:18,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102783 states, 93044 states have (on average 1.5911289282490004) internal successors, (148045), 93559 states have internal predecessors, (148045), 6153 states have call successors, (6153), 3073 states have call predecessors, (6153), 3584 states have return successors, (26858), 6662 states have call predecessors, (26858), 6151 states have call successors, (26858) [2023-12-15 17:43:19,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102783 states to 102783 states and 181056 transitions. [2023-12-15 17:43:19,237 INFO L78 Accepts]: Start accepts. Automaton has 102783 states and 181056 transitions. Word has length 102 [2023-12-15 17:43:19,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:43:19,237 INFO L495 AbstractCegarLoop]: Abstraction has 102783 states and 181056 transitions. [2023-12-15 17:43:19,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:19,237 INFO L276 IsEmpty]: Start isEmpty. Operand 102783 states and 181056 transitions. [2023-12-15 17:43:19,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-15 17:43:19,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:43:19,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:43:19,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-15 17:43:19,302 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:43:19,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:43:19,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1581222700, now seen corresponding path program 1 times [2023-12-15 17:43:19,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:43:19,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699551141] [2023-12-15 17:43:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:43:19,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:43:19,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:43:19,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-15 17:43:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:19,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-12-15 17:43:19,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:19,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:43:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:19,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-12-15 17:43:19,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:43:19,397 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 17:43:19,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:43:19,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699551141] [2023-12-15 17:43:19,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699551141] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:43:19,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:43:19,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:43:19,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561656007] [2023-12-15 17:43:19,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:43:19,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:43:19,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:43:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:43:19,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:43:19,399 INFO L87 Difference]: Start difference. First operand 102783 states and 181056 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:43:27,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:43:27,019 INFO L93 Difference]: Finished difference Result 349703 states and 609039 transitions. [2023-12-15 17:43:27,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-15 17:43:27,019 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 102 [2023-12-15 17:43:27,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:43:28,031 INFO L225 Difference]: With dead ends: 349703 [2023-12-15 17:43:28,031 INFO L226 Difference]: Without dead ends: 249055 [2023-12-15 17:43:28,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2023-12-15 17:43:28,216 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4770 mSDsluCounter, 16498 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4791 SdHoareTripleChecker+Valid, 20647 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-15 17:43:28,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4791 Valid, 20647 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-15 17:43:28,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249055 states. Received shutdown request... [2023-12-15 17:43:32,217 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 17:43:33,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-15 17:43:35,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249055 to 200353. [2023-12-15 17:43:35,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200353 states, 180885 states have (on average 1.5696326395223485) internal successors, (283923), 182424 states have internal predecessors, (283923), 12298 states have call successors, (12298), 6145 states have call predecessors, (12298), 7168 states have return successors, (53197), 12295 states have call predecessors, (53197), 12296 states have call successors, (53197) [2023-12-15 17:43:35,482 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:43:35,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-15 17:43:35,483 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-15 17:43:35,484 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:43:35,486 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:43:35,488 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:43:35,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:43:35 BoogieIcfgContainer [2023-12-15 17:43:35,489 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:43:35,489 INFO L158 Benchmark]: Toolchain (without parser) took 60111.82ms. Allocated memory was 181.4MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 104.5MB in the beginning and 4.7GB in the end (delta: -4.6GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-15 17:43:35,489 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:43:35,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2073.01ms. Allocated memory was 181.4MB in the beginning and 283.1MB in the end (delta: 101.7MB). Free memory was 104.5MB in the beginning and 114.1MB in the end (delta: -9.6MB). Peak memory consumption was 100.9MB. Max. memory is 8.0GB. [2023-12-15 17:43:35,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 382.09ms. Allocated memory is still 283.1MB. Free memory was 114.1MB in the beginning and 131.4MB in the end (delta: -17.3MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-12-15 17:43:35,490 INFO L158 Benchmark]: Boogie Preprocessor took 418.49ms. Allocated memory was 283.1MB in the beginning and 458.2MB in the end (delta: 175.1MB). Free memory was 131.4MB in the beginning and 275.0MB in the end (delta: -143.7MB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. [2023-12-15 17:43:35,490 INFO L158 Benchmark]: RCFGBuilder took 5663.03ms. Allocated memory was 458.2MB in the beginning and 762.3MB in the end (delta: 304.1MB). Free memory was 275.0MB in the beginning and 433.9MB in the end (delta: -158.9MB). Peak memory consumption was 371.2MB. Max. memory is 8.0GB. [2023-12-15 17:43:35,490 INFO L158 Benchmark]: TraceAbstraction took 51569.13ms. Allocated memory was 762.3MB in the beginning and 6.7GB in the end (delta: 5.9GB). Free memory was 433.4MB in the beginning and 4.7GB in the end (delta: -4.3GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-15 17:43:35,491 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 181.4MB. Free memory is still 137.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2073.01ms. Allocated memory was 181.4MB in the beginning and 283.1MB in the end (delta: 101.7MB). Free memory was 104.5MB in the beginning and 114.1MB in the end (delta: -9.6MB). Peak memory consumption was 100.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 382.09ms. Allocated memory is still 283.1MB. Free memory was 114.1MB in the beginning and 131.4MB in the end (delta: -17.3MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 418.49ms. Allocated memory was 283.1MB in the beginning and 458.2MB in the end (delta: 175.1MB). Free memory was 131.4MB in the beginning and 275.0MB in the end (delta: -143.7MB). Peak memory consumption was 50.9MB. Max. memory is 8.0GB. * RCFGBuilder took 5663.03ms. Allocated memory was 458.2MB in the beginning and 762.3MB in the end (delta: 304.1MB). Free memory was 275.0MB in the beginning and 433.9MB in the end (delta: -158.9MB). Peak memory consumption was 371.2MB. Max. memory is 8.0GB. * TraceAbstraction took 51569.13ms. Allocated memory was 762.3MB in the beginning and 6.7GB in the end (delta: 5.9GB). Free memory was 433.4MB in the beginning and 4.7GB in the end (delta: -4.3GB). Peak memory consumption was 2.2GB. 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 ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 11094]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11094). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 2341 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 51.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 33.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62908 SdHoareTripleChecker+Valid, 14.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 62684 mSDsluCounter, 279546 SdHoareTripleChecker+Invalid, 12.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 220623 mSDsCounter, 920 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23446 IncrementalHoareTripleChecker+Invalid, 24366 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 920 mSolverCounterUnsat, 58923 mSDtfsCounter, 23446 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 374 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=102783occurred in iteration=13, InterpolantAutomatonStates: 176, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 15.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 59375 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1428 NumberOfCodeBlocks, 1428 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1414 ConstructedInterpolants, 0 QuantifiedInterpolants, 4033 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !ENTRY org.eclipse.osgi 4 0 2023-12-15 17:43:35.501 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/820aa0201/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:190) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438)