/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_label41+token_ring.03.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 17:30:32,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 17:30:32,527 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 17:30:32,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 17:30:32,530 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 17:30:32,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 17:30:32,545 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 17:30:32,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 17:30:32,546 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 17:30:32,549 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 17:30:32,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 17:30:32,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 17:30:32,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 17:30:32,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 17:30:32,551 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 17:30:32,551 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 17:30:32,551 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 17:30:32,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 17:30:32,552 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 17:30:32,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 17:30:32,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 17:30:32,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 17:30:32,552 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 17:30:32,553 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 17:30:32,553 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 17:30:32,553 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 17:30:32,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 17:30:32,553 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 17:30:32,554 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 17:30:32,554 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 17:30:32,554 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 17:30:32,555 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 17:30:32,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:30:32,555 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 17:30:32,555 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 17:30:32,555 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 17:30:32,555 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 17:30:32,555 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 17:30:32,556 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 17:30:32,556 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 17:30:32,556 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 17:30:32,556 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 17:30:32,556 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 17:30:32,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 17:30:32,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 17:30:32,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 17:30:32,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 17:30:32,764 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 17:30:32,764 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 17:30:32,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c [2023-12-15 17:30:33,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 17:30:34,444 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 17:30:34,445 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label41+token_ring.03.cil-2.c [2023-12-15 17:30:34,495 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/198a446cb/c26093235e2a4201add2e9a7b01082b2/FLAGd5631ae7c [2023-12-15 17:30:34,508 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/198a446cb/c26093235e2a4201add2e9a7b01082b2 [2023-12-15 17:30:34,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 17:30:34,510 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 17:30:34,512 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 17:30:34,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 17:30:34,516 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 17:30:34,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:30:34" (1/1) ... [2023-12-15 17:30:34,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69605579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:34, skipping insertion in model container [2023-12-15 17:30:34,517 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:30:34" (1/1) ... [2023-12-15 17:30:34,682 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 17:30:35,885 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_label41+token_ring.03.cil-2.c[376251,376264] [2023-12-15 17:30:35,910 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_label41+token_ring.03.cil-2.c[383339,383352] [2023-12-15 17:30:36,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:30:36,024 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 17:30:36,642 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_label41+token_ring.03.cil-2.c[376251,376264] [2023-12-15 17:30:36,649 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_label41+token_ring.03.cil-2.c[383339,383352] [2023-12-15 17:30:36,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 17:30:36,757 INFO L206 MainTranslator]: Completed translation [2023-12-15 17:30:36,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36 WrapperNode [2023-12-15 17:30:36,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 17:30:36,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 17:30:36,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 17:30:36,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 17:30:36,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:36,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,040 INFO L138 Inliner]: procedures = 50, calls = 50, calls flagged for inlining = 28, calls inlined = 28, statements flattened = 12693 [2023-12-15 17:30:37,041 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 17:30:37,041 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 17:30:37,041 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 17:30:37,041 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 17:30:37,049 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,150 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 17:30:37,150 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,150 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,398 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,447 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,495 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 17:30:37,496 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 17:30:37,496 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 17:30:37,496 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 17:30:37,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (1/1) ... [2023-12-15 17:30:37,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 17:30:37,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:37,520 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 17:30:37,565 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 17:30:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 17:30:37,570 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-15 17:30:37,570 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-15 17:30:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-15 17:30:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-15 17:30:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-15 17:30:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-15 17:30:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 17:30:37,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 17:30:37,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 17:30:37,648 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 17:30:37,649 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 17:30:43,644 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 17:30:43,707 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 17:30:43,707 INFO L309 CfgBuilder]: Removed 7 assume(true) statements. [2023-12-15 17:30:43,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:30:43 BoogieIcfgContainer [2023-12-15 17:30:43,708 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 17:30:43,710 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 17:30:43,710 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 17:30:43,713 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 17:30:43,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:30:34" (1/3) ... [2023-12-15 17:30:43,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e547a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:30:43, skipping insertion in model container [2023-12-15 17:30:43,714 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:30:36" (2/3) ... [2023-12-15 17:30:43,714 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e547a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:30:43, skipping insertion in model container [2023-12-15 17:30:43,715 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:30:43" (3/3) ... [2023-12-15 17:30:43,715 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label41+token_ring.03.cil-2.c [2023-12-15 17:30:43,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 17:30:43,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-15 17:30:43,784 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 17:30:43,790 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;@180ea5f6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 17:30:43,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-15 17:30:43,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-15 17:30:43,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:43,810 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:43,811 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] [2023-12-15 17:30:43,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:43,814 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:43,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1010118271, now seen corresponding path program 1 times [2023-12-15 17:30:43,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:43,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145157350] [2023-12-15 17:30:43,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:43,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:44,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:44,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:44,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:44,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:44,248 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 17:30:44,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:44,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145157350] [2023-12-15 17:30:44,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145157350] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:44,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:44,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:30:44,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849995214] [2023-12-15 17:30:44,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:44,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:30:44,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:44,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:30:44,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:30:44,277 INFO L87 Difference]: Start difference. First operand has 2264 states, 2238 states have (on average 1.8847184986595173) internal successors, (4218), 2241 states have internal predecessors, (4218), 17 states have call successors, (17), 6 states have call predecessors, (17), 6 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:45,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:45,091 INFO L93 Difference]: Finished difference Result 4732 states and 8845 transitions. [2023-12-15 17:30:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:30:45,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:45,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:45,109 INFO L225 Difference]: With dead ends: 4732 [2023-12-15 17:30:45,110 INFO L226 Difference]: Without dead ends: 2471 [2023-12-15 17:30:45,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 17:30:45,118 INFO L413 NwaCegarLoop]: 4074 mSDtfsCounter, 4459 mSDsluCounter, 12195 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 16269 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:45,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 16269 Invalid, 864 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [72 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:30:45,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2471 states. [2023-12-15 17:30:45,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2471 to 2392. [2023-12-15 17:30:45,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 2348 states have (on average 1.8373083475298126) internal successors, (4314), 2351 states have internal predecessors, (4314), 29 states have call successors, (29), 12 states have call predecessors, (29), 13 states have return successors, (32), 29 states have call predecessors, (32), 29 states have call successors, (32) [2023-12-15 17:30:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 4375 transitions. [2023-12-15 17:30:45,204 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 4375 transitions. Word has length 71 [2023-12-15 17:30:45,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:45,205 INFO L495 AbstractCegarLoop]: Abstraction has 2392 states and 4375 transitions. [2023-12-15 17:30:45,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:45,205 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 4375 transitions. [2023-12-15 17:30:45,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:45,207 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:45,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:45,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-15 17:30:45,208 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:45,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:45,208 INFO L85 PathProgramCache]: Analyzing trace with hash -308869883, now seen corresponding path program 1 times [2023-12-15 17:30:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:45,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275161242] [2023-12-15 17:30:45,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:45,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:45,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:45,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:45,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:45,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:45,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:45,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:45,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:45,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:45,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:45,313 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 17:30:45,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:45,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275161242] [2023-12-15 17:30:45,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275161242] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:45,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:45,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:30:45,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904233948] [2023-12-15 17:30:45,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:45,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:30:45,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:45,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:30:45,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:45,315 INFO L87 Difference]: Start difference. First operand 2392 states and 4375 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:46,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:46,380 INFO L93 Difference]: Finished difference Result 2906 states and 5181 transitions. [2023-12-15 17:30:46,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:30:46,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:46,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:46,389 INFO L225 Difference]: With dead ends: 2906 [2023-12-15 17:30:46,390 INFO L226 Difference]: Without dead ends: 2644 [2023-12-15 17:30:46,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:30:46,392 INFO L413 NwaCegarLoop]: 4151 mSDtfsCounter, 4453 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4463 SdHoareTripleChecker+Valid, 20570 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:46,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4463 Valid, 20570 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:30:46,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2644 states. [2023-12-15 17:30:46,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2644 to 2515. [2023-12-15 17:30:46,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2515 states, 2452 states have (on average 1.8242251223491028) internal successors, (4473), 2456 states have internal predecessors, (4473), 41 states have call successors, (41), 18 states have call predecessors, (41), 20 states have return successors, (46), 42 states have call predecessors, (46), 41 states have call successors, (46) [2023-12-15 17:30:46,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2515 states to 2515 states and 4560 transitions. [2023-12-15 17:30:46,442 INFO L78 Accepts]: Start accepts. Automaton has 2515 states and 4560 transitions. Word has length 71 [2023-12-15 17:30:46,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:46,442 INFO L495 AbstractCegarLoop]: Abstraction has 2515 states and 4560 transitions. [2023-12-15 17:30:46,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:46,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2515 states and 4560 transitions. [2023-12-15 17:30:46,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:46,444 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:46,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:46,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-15 17:30:46,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:46,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:46,445 INFO L85 PathProgramCache]: Analyzing trace with hash 124859203, now seen corresponding path program 1 times [2023-12-15 17:30:46,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:46,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057020667] [2023-12-15 17:30:46,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:46,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:46,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:46,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:46,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:46,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:46,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:46,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:46,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:46,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:46,544 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 17:30:46,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:46,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057020667] [2023-12-15 17:30:46,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057020667] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:46,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:46,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:30:46,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123137773] [2023-12-15 17:30:46,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:46,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:30:46,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:46,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:30:46,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:46,546 INFO L87 Difference]: Start difference. First operand 2515 states and 4560 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:47,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:47,561 INFO L93 Difference]: Finished difference Result 3352 states and 5868 transitions. [2023-12-15 17:30:47,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-15 17:30:47,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:47,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:47,571 INFO L225 Difference]: With dead ends: 3352 [2023-12-15 17:30:47,571 INFO L226 Difference]: Without dead ends: 2967 [2023-12-15 17:30:47,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-12-15 17:30:47,574 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4451 mSDsluCounter, 16419 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4461 SdHoareTripleChecker+Valid, 20568 SdHoareTripleChecker+Invalid, 1327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:47,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4461 Valid, 20568 Invalid, 1327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:30:47,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2967 states. [2023-12-15 17:30:47,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2967 to 2762. [2023-12-15 17:30:47,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.8008267568583238) internal successors, (4792), 2667 states have internal predecessors, (4792), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-12-15 17:30:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4935 transitions. [2023-12-15 17:30:47,638 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4935 transitions. Word has length 71 [2023-12-15 17:30:47,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:47,638 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4935 transitions. [2023-12-15 17:30:47,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:47,638 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4935 transitions. [2023-12-15 17:30:47,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:47,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:47,641 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] [2023-12-15 17:30:47,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-15 17:30:47,641 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:47,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:47,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1385776453, now seen corresponding path program 1 times [2023-12-15 17:30:47,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:47,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034135599] [2023-12-15 17:30:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:47,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:47,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:47,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:47,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:47,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:47,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:47,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:47,770 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 17:30:47,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:47,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034135599] [2023-12-15 17:30:47,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034135599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:47,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:47,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:30:47,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803158114] [2023-12-15 17:30:47,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:47,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:30:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:47,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:30:47,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:47,772 INFO L87 Difference]: Start difference. First operand 2762 states and 4935 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:48,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:48,359 INFO L93 Difference]: Finished difference Result 3589 states and 6236 transitions. [2023-12-15 17:30:48,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 17:30:48,360 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:48,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:48,370 INFO L225 Difference]: With dead ends: 3589 [2023-12-15 17:30:48,370 INFO L226 Difference]: Without dead ends: 2957 [2023-12-15 17:30:48,373 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 17:30:48,373 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 4387 mSDsluCounter, 12099 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4398 SdHoareTripleChecker+Valid, 16156 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:48,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4398 Valid, 16156 Invalid, 636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 17:30:48,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2023-12-15 17:30:48,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2762. [2023-12-15 17:30:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2762 states, 2661 states have (on average 1.7989477639984968) internal successors, (4787), 2667 states have internal predecessors, (4787), 65 states have call successors, (65), 30 states have call predecessors, (65), 34 states have return successors, (78), 68 states have call predecessors, (78), 65 states have call successors, (78) [2023-12-15 17:30:48,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 4930 transitions. [2023-12-15 17:30:48,425 INFO L78 Accepts]: Start accepts. Automaton has 2762 states and 4930 transitions. Word has length 71 [2023-12-15 17:30:48,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:48,425 INFO L495 AbstractCegarLoop]: Abstraction has 2762 states and 4930 transitions. [2023-12-15 17:30:48,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:48,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2762 states and 4930 transitions. [2023-12-15 17:30:48,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:48,426 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:48,426 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] [2023-12-15 17:30:48,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-15 17:30:48,427 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:48,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:48,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1426451203, now seen corresponding path program 1 times [2023-12-15 17:30:48,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:48,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978545171] [2023-12-15 17:30:48,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:48,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:48,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:48,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:48,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:48,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:48,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:48,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:48,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:48,619 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 17:30:48,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:48,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978545171] [2023-12-15 17:30:48,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978545171] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:48,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:48,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:30:48,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673350299] [2023-12-15 17:30:48,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:48,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:30:48,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:48,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:30:48,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:48,628 INFO L87 Difference]: Start difference. First operand 2762 states and 4930 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:49,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:49,735 INFO L93 Difference]: Finished difference Result 4380 states and 7425 transitions. [2023-12-15 17:30:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:30:49,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:49,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:49,747 INFO L225 Difference]: With dead ends: 4380 [2023-12-15 17:30:49,747 INFO L226 Difference]: Without dead ends: 3748 [2023-12-15 17:30:49,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:30:49,752 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4558 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4572 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:49,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4572 Valid, 20561 Invalid, 1287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1239 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:30:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3748 states. [2023-12-15 17:30:49,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3748 to 3253. [2023-12-15 17:30:49,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3253 states, 3080 states have (on average 1.7603896103896104) internal successors, (5422), 3090 states have internal predecessors, (5422), 109 states have call successors, (109), 54 states have call predecessors, (109), 62 states have return successors, (144), 116 states have call predecessors, (144), 109 states have call successors, (144) [2023-12-15 17:30:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3253 states to 3253 states and 5675 transitions. [2023-12-15 17:30:49,835 INFO L78 Accepts]: Start accepts. Automaton has 3253 states and 5675 transitions. Word has length 71 [2023-12-15 17:30:49,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:49,835 INFO L495 AbstractCegarLoop]: Abstraction has 3253 states and 5675 transitions. [2023-12-15 17:30:49,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3253 states and 5675 transitions. [2023-12-15 17:30:49,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:49,837 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:49,837 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] [2023-12-15 17:30:49,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-15 17:30:49,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:49,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:49,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1481730683, now seen corresponding path program 1 times [2023-12-15 17:30:49,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:49,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546934578] [2023-12-15 17:30:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:49,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:49,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:49,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:49,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:49,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:49,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:49,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:49,929 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 17:30:49,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:49,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546934578] [2023-12-15 17:30:49,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546934578] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:49,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:49,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:30:49,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504609782] [2023-12-15 17:30:49,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:49,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:30:49,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:49,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:30:49,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:49,931 INFO L87 Difference]: Start difference. First operand 3253 states and 5675 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:51,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:51,086 INFO L93 Difference]: Finished difference Result 6161 states and 10154 transitions. [2023-12-15 17:30:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:30:51,087 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:51,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:51,106 INFO L225 Difference]: With dead ends: 6161 [2023-12-15 17:30:51,106 INFO L226 Difference]: Without dead ends: 5038 [2023-12-15 17:30:51,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:30:51,114 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4460 mSDsluCounter, 16411 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4469 SdHoareTripleChecker+Valid, 20557 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:51,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4469 Valid, 20557 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-15 17:30:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2023-12-15 17:30:51,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4191. [2023-12-15 17:30:51,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4191 states, 3878 states have (on average 1.709128416709644) internal successors, (6628), 3896 states have internal predecessors, (6628), 193 states have call successors, (193), 102 states have call predecessors, (193), 118 states have return successors, (290), 208 states have call predecessors, (290), 193 states have call successors, (290) [2023-12-15 17:30:51,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 7111 transitions. [2023-12-15 17:30:51,325 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 7111 transitions. Word has length 71 [2023-12-15 17:30:51,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:51,325 INFO L495 AbstractCegarLoop]: Abstraction has 4191 states and 7111 transitions. [2023-12-15 17:30:51,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:51,326 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 7111 transitions. [2023-12-15 17:30:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:51,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:51,328 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] [2023-12-15 17:30:51,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-15 17:30:51,328 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:51,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:51,328 INFO L85 PathProgramCache]: Analyzing trace with hash -605711677, now seen corresponding path program 1 times [2023-12-15 17:30:51,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:51,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111529173] [2023-12-15 17:30:51,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:51,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:51,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:51,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:51,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:51,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:51,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:51,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:51,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:51,431 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 17:30:51,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:51,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111529173] [2023-12-15 17:30:51,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111529173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:51,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:51,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-15 17:30:51,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932614816] [2023-12-15 17:30:51,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:51,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-15 17:30:51,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:51,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-15 17:30:51,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:51,433 INFO L87 Difference]: Start difference. First operand 4191 states and 7111 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:52,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:52,417 INFO L93 Difference]: Finished difference Result 9281 states and 14962 transitions. [2023-12-15 17:30:52,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 17:30:52,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:52,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:52,444 INFO L225 Difference]: With dead ends: 9281 [2023-12-15 17:30:52,444 INFO L226 Difference]: Without dead ends: 7220 [2023-12-15 17:30:52,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-12-15 17:30:52,453 INFO L413 NwaCegarLoop]: 4147 mSDtfsCounter, 4448 mSDsluCounter, 16414 mSDsCounter, 0 mSdLazyCounter, 1195 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4462 SdHoareTripleChecker+Valid, 20561 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 1195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:52,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4462 Valid, 20561 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 1195 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 17:30:52,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7220 states. [2023-12-15 17:30:52,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7220 to 6122. [2023-12-15 17:30:52,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6122 states, 5537 states have (on average 1.6525194148455842) internal successors, (9150), 5571 states have internal predecessors, (9150), 353 states have call successors, (353), 198 states have call predecessors, (353), 230 states have return successors, (628), 384 states have call predecessors, (628), 353 states have call successors, (628) [2023-12-15 17:30:52,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6122 states to 6122 states and 10131 transitions. [2023-12-15 17:30:52,618 INFO L78 Accepts]: Start accepts. Automaton has 6122 states and 10131 transitions. Word has length 71 [2023-12-15 17:30:52,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:52,618 INFO L495 AbstractCegarLoop]: Abstraction has 6122 states and 10131 transitions. [2023-12-15 17:30:52,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 6122 states and 10131 transitions. [2023-12-15 17:30:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-15 17:30:52,622 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:52,622 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] [2023-12-15 17:30:52,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-15 17:30:52,623 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:52,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash 932628353, now seen corresponding path program 1 times [2023-12-15 17:30:52,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:52,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590703989] [2023-12-15 17:30:52,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:52,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:52,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:52,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:52,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:52,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:52,710 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 17:30:52,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:52,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590703989] [2023-12-15 17:30:52,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590703989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:52,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 17:30:52,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 17:30:52,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681994878] [2023-12-15 17:30:52,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:52,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 17:30:52,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:52,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 17:30:52,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-15 17:30:52,712 INFO L87 Difference]: Start difference. First operand 6122 states and 10131 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:53,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:53,570 INFO L93 Difference]: Finished difference Result 13461 states and 21515 transitions. [2023-12-15 17:30:53,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-15 17:30:53,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2023-12-15 17:30:53,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:53,601 INFO L225 Difference]: With dead ends: 13461 [2023-12-15 17:30:53,602 INFO L226 Difference]: Without dead ends: 9470 [2023-12-15 17:30:53,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-12-15 17:30:53,614 INFO L413 NwaCegarLoop]: 4178 mSDtfsCounter, 4606 mSDsluCounter, 12239 mSDsCounter, 0 mSdLazyCounter, 1028 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4633 SdHoareTripleChecker+Valid, 16417 SdHoareTripleChecker+Invalid, 1099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1028 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:53,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4633 Valid, 16417 Invalid, 1099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1028 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-15 17:30:53,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9470 states. [2023-12-15 17:30:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9470 to 8136. [2023-12-15 17:30:53,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 7244 states have (on average 1.6114025400331309) internal successors, (11673), 7311 states have internal predecessors, (11673), 542 states have call successors, (542), 300 states have call predecessors, (542), 348 states have return successors, (899), 556 states have call predecessors, (899), 542 states have call successors, (899) [2023-12-15 17:30:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 13114 transitions. [2023-12-15 17:30:53,837 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 13114 transitions. Word has length 71 [2023-12-15 17:30:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:53,838 INFO L495 AbstractCegarLoop]: Abstraction has 8136 states and 13114 transitions. [2023-12-15 17:30:53,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-15 17:30:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 13114 transitions. [2023-12-15 17:30:53,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 17:30:53,850 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:53,850 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:53,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-15 17:30:53,850 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:53,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:53,851 INFO L85 PathProgramCache]: Analyzing trace with hash 919759115, now seen corresponding path program 1 times [2023-12-15 17:30:53,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:53,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554378319] [2023-12-15 17:30:53,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:53,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:53,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:53,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:30:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 17:30:53,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:53,968 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:30:53,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:53,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554378319] [2023-12-15 17:30:53,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554378319] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:53,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [829467807] [2023-12-15 17:30:53,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:53,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:53,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:53,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:53,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 17:30:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:54,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:54,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:54,158 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-12-15 17:30:54,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:54,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [829467807] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:54,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:54,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:30:54,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727987296] [2023-12-15 17:30:54,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:54,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:54,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:54,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:54,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:54,160 INFO L87 Difference]: Start difference. First operand 8136 states and 13114 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:54,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:54,753 INFO L93 Difference]: Finished difference Result 19993 states and 31344 transitions. [2023-12-15 17:30:54,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:54,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-15 17:30:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:54,825 INFO L225 Difference]: With dead ends: 19993 [2023-12-15 17:30:54,825 INFO L226 Difference]: Without dead ends: 13988 [2023-12-15 17:30:54,856 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:54,858 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4122 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4122 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:54,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4122 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:30:54,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13988 states. [2023-12-15 17:30:55,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13988 to 13936. [2023-12-15 17:30:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13936 states, 12184 states have (on average 1.5635259356533158) internal successors, (19050), 12316 states have internal predecessors, (19050), 1054 states have call successors, (1054), 600 states have call predecessors, (1054), 696 states have return successors, (1737), 1051 states have call predecessors, (1737), 1054 states have call successors, (1737) [2023-12-15 17:30:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13936 states to 13936 states and 21841 transitions. [2023-12-15 17:30:55,276 INFO L78 Accepts]: Start accepts. Automaton has 13936 states and 21841 transitions. Word has length 115 [2023-12-15 17:30:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:55,276 INFO L495 AbstractCegarLoop]: Abstraction has 13936 states and 21841 transitions. [2023-12-15 17:30:55,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 13936 states and 21841 transitions. [2023-12-15 17:30:55,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 17:30:55,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:55,294 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:55,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 17:30:55,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:55,499 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:55,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:55,500 INFO L85 PathProgramCache]: Analyzing trace with hash 690437961, now seen corresponding path program 1 times [2023-12-15 17:30:55,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:55,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399949968] [2023-12-15 17:30:55,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:55,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:55,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:55,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:30:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 17:30:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,663 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:30:55,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:55,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399949968] [2023-12-15 17:30:55,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399949968] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:55,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2907946] [2023-12-15 17:30:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:55,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:55,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:55,664 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:55,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 17:30:55,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:55,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:55,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:55,805 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-15 17:30:55,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:55,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2907946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:55,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:55,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:30:55,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463956815] [2023-12-15 17:30:55,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:55,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:55,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:55,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:55,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:55,807 INFO L87 Difference]: Start difference. First operand 13936 states and 21841 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:56,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:56,589 INFO L93 Difference]: Finished difference Result 37241 states and 57483 transitions. [2023-12-15 17:30:56,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:56,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 115 [2023-12-15 17:30:56,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:56,656 INFO L225 Difference]: With dead ends: 37241 [2023-12-15 17:30:56,656 INFO L226 Difference]: Without dead ends: 25436 [2023-12-15 17:30:56,683 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:56,684 INFO L413 NwaCegarLoop]: 4149 mSDtfsCounter, 4127 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4127 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:56,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4127 Valid, 4322 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:30:56,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25436 states. [2023-12-15 17:30:57,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25436 to 25334. [2023-12-15 17:30:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25334 states, 21888 states have (on average 1.5295138888888888) internal successors, (33478), 22150 states have internal predecessors, (33478), 2052 states have call successors, (2052), 1200 states have call predecessors, (2052), 1392 states have return successors, (3387), 2015 states have call predecessors, (3387), 2052 states have call successors, (3387) [2023-12-15 17:30:57,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25334 states to 25334 states and 38917 transitions. [2023-12-15 17:30:57,530 INFO L78 Accepts]: Start accepts. Automaton has 25334 states and 38917 transitions. Word has length 115 [2023-12-15 17:30:57,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:30:57,530 INFO L495 AbstractCegarLoop]: Abstraction has 25334 states and 38917 transitions. [2023-12-15 17:30:57,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-15 17:30:57,530 INFO L276 IsEmpty]: Start isEmpty. Operand 25334 states and 38917 transitions. [2023-12-15 17:30:57,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-12-15 17:30:57,569 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:30:57,570 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:30:57,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 17:30:57,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 17:30:57,775 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:30:57,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:30:57,776 INFO L85 PathProgramCache]: Analyzing trace with hash 573874123, now seen corresponding path program 1 times [2023-12-15 17:30:57,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:30:57,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650491352] [2023-12-15 17:30:57,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:57,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:30:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:30:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:30:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:30:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:30:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:30:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:30:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:30:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 17:30:57,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:57,960 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-15 17:30:57,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:30:57,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650491352] [2023-12-15 17:30:57,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650491352] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:30:57,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2063727736] [2023-12-15 17:30:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:30:57,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:30:57,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:30:57,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:30:58,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 17:30:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:30:58,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:30:58,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:30:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 17:30:58,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:30:58,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2063727736] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:30:58,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:30:58,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:30:58,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419367192] [2023-12-15 17:30:58,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:30:58,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:30:58,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:30:58,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:30:58,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:58,102 INFO L87 Difference]: Start difference. First operand 25334 states and 38917 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 17:30:59,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:30:59,396 INFO L93 Difference]: Finished difference Result 70731 states and 108607 transitions. [2023-12-15 17:30:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:30:59,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 115 [2023-12-15 17:30:59,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:30:59,596 INFO L225 Difference]: With dead ends: 70731 [2023-12-15 17:30:59,596 INFO L226 Difference]: Without dead ends: 47529 [2023-12-15 17:30:59,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:30:59,633 INFO L413 NwaCegarLoop]: 4325 mSDtfsCounter, 182 mSDsluCounter, 4149 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 8474 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 17:30:59,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 8474 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 17:30:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47529 states. [2023-12-15 17:31:01,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47529 to 47529. [2023-12-15 17:31:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47529 states, 40776 states have (on average 1.5053217578968021) internal successors, (61381), 41231 states have internal predecessors, (61381), 3967 states have call successors, (3967), 2400 states have call predecessors, (3967), 2784 states have return successors, (7350), 3961 states have call predecessors, (7350), 3967 states have call successors, (7350) [2023-12-15 17:31:01,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47529 states to 47529 states and 72698 transitions. [2023-12-15 17:31:01,840 INFO L78 Accepts]: Start accepts. Automaton has 47529 states and 72698 transitions. Word has length 115 [2023-12-15 17:31:01,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:31:01,841 INFO L495 AbstractCegarLoop]: Abstraction has 47529 states and 72698 transitions. [2023-12-15 17:31:01,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-15 17:31:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 47529 states and 72698 transitions. [2023-12-15 17:31:01,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-15 17:31:01,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:31:01,942 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:31:01,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 17:31:02,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:02,164 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:31:02,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:31:02,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1434672612, now seen corresponding path program 1 times [2023-12-15 17:31:02,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:31:02,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091860418] [2023-12-15 17:31:02,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:02,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:31:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:31:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:31:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:31:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:31:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:31:02,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:31:02,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-12-15 17:31:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:02,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2023-12-15 17:31:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-12-15 17:31:02,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:31:02,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091860418] [2023-12-15 17:31:02,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091860418] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:31:02,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026503716] [2023-12-15 17:31:02,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:02,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:02,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:31:02,296 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:31:02,309 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 17:31:02,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:02,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:31:02,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:31:02,514 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-15 17:31:02,514 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:31:02,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026503716] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:31:02,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:31:02,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-12-15 17:31:02,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568954752] [2023-12-15 17:31:02,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:31:02,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:31:02,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:31:02,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:31:02,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:02,517 INFO L87 Difference]: Start difference. First operand 47529 states and 72698 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 17:31:05,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:31:05,264 INFO L93 Difference]: Finished difference Result 136273 states and 208325 transitions. [2023-12-15 17:31:05,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:31:05,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 148 [2023-12-15 17:31:05,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:31:05,584 INFO L225 Difference]: With dead ends: 136273 [2023-12-15 17:31:05,585 INFO L226 Difference]: Without dead ends: 90881 [2023-12-15 17:31:05,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:05,665 INFO L413 NwaCegarLoop]: 4158 mSDtfsCounter, 4081 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4081 SdHoareTripleChecker+Valid, 4331 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:31:05,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4081 Valid, 4331 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:31:05,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90881 states. [2023-12-15 17:31:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90881 to 90479. [2023-12-15 17:31:09,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90479 states, 77674 states have (on average 1.4913484563689265) internal successors, (115839), 78581 states have internal predecessors, (115839), 7381 states have call successors, (7381), 4654 states have call predecessors, (7381), 5422 states have return successors, (13774), 7307 states have call predecessors, (13774), 7381 states have call successors, (13774) [2023-12-15 17:31:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90479 states to 90479 states and 136994 transitions. [2023-12-15 17:31:09,495 INFO L78 Accepts]: Start accepts. Automaton has 90479 states and 136994 transitions. Word has length 148 [2023-12-15 17:31:09,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:31:09,495 INFO L495 AbstractCegarLoop]: Abstraction has 90479 states and 136994 transitions. [2023-12-15 17:31:09,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-15 17:31:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 90479 states and 136994 transitions. [2023-12-15 17:31:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-15 17:31:09,953 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:31:09,953 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:31:09,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 17:31:10,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:10,165 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:31:10,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:31:10,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1063188102, now seen corresponding path program 1 times [2023-12-15 17:31:10,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:31:10,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815053582] [2023-12-15 17:31:10,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:10,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:31:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:31:10,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:31:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:31:10,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:31:10,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:31:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 17:31:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 17:31:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 17:31:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 17:31:10,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,262 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-15 17:31:10,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:31:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815053582] [2023-12-15 17:31:10,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815053582] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:31:10,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837220794] [2023-12-15 17:31:10,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:10,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:10,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:31:10,263 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:31:10,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 17:31:10,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:10,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:31:10,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:31:10,439 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-15 17:31:10,439 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:31:10,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837220794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:31:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:31:10,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:31:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668526187] [2023-12-15 17:31:10,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:31:10,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:31:10,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:31:10,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:31:10,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:10,441 INFO L87 Difference]: Start difference. First operand 90479 states and 136994 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:31:12,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:31:12,729 INFO L93 Difference]: Finished difference Result 137875 states and 209245 transitions. [2023-12-15 17:31:12,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:31:12,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 165 [2023-12-15 17:31:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:31:12,949 INFO L225 Difference]: With dead ends: 137875 [2023-12-15 17:31:12,949 INFO L226 Difference]: Without dead ends: 76999 [2023-12-15 17:31:13,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:13,281 INFO L413 NwaCegarLoop]: 4146 mSDtfsCounter, 4101 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 4182 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:31:13,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 4182 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:31:13,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76999 states. [2023-12-15 17:31:15,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76999 to 55391. [2023-12-15 17:31:15,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55391 states, 47802 states have (on average 1.4538094640391614) internal successors, (69495), 48265 states have internal predecessors, (69495), 4297 states have call successors, (4297), 2906 states have call predecessors, (4297), 3290 states have return successors, (6802), 4251 states have call predecessors, (6802), 4297 states have call successors, (6802) [2023-12-15 17:31:15,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55391 states to 55391 states and 80594 transitions. [2023-12-15 17:31:15,443 INFO L78 Accepts]: Start accepts. Automaton has 55391 states and 80594 transitions. Word has length 165 [2023-12-15 17:31:15,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:31:15,443 INFO L495 AbstractCegarLoop]: Abstraction has 55391 states and 80594 transitions. [2023-12-15 17:31:15,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-12-15 17:31:15,443 INFO L276 IsEmpty]: Start isEmpty. Operand 55391 states and 80594 transitions. [2023-12-15 17:31:15,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-12-15 17:31:15,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:31:15,523 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:31:15,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-15 17:31:15,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-12-15 17:31:15,727 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:31:15,728 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:31:15,728 INFO L85 PathProgramCache]: Analyzing trace with hash 595683337, now seen corresponding path program 1 times [2023-12-15 17:31:15,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:31:15,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777450981] [2023-12-15 17:31:15,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:15,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:31:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:31:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:31:15,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:31:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:31:15,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:31:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-12-15 17:31:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-12-15 17:31:15,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-12-15 17:31:15,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:15,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-12-15 17:31:15,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,851 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-15 17:31:15,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:31:15,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777450981] [2023-12-15 17:31:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777450981] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:31:15,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546146035] [2023-12-15 17:31:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:15,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:31:15,852 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:31:15,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 17:31:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:15,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 17:31:15,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:31:15,995 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-12-15 17:31:15,995 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:31:15,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546146035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:31:15,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:31:15,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:31:15,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049752598] [2023-12-15 17:31:15,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:31:15,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:31:15,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:31:15,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:31:15,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:15,997 INFO L87 Difference]: Start difference. First operand 55391 states and 80594 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:31:17,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:31:17,713 INFO L93 Difference]: Finished difference Result 95370 states and 137683 transitions. [2023-12-15 17:31:17,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:31:17,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 165 [2023-12-15 17:31:17,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:31:17,853 INFO L225 Difference]: With dead ends: 95370 [2023-12-15 17:31:17,853 INFO L226 Difference]: Without dead ends: 58865 [2023-12-15 17:31:17,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:17,908 INFO L413 NwaCegarLoop]: 4191 mSDtfsCounter, 4108 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4108 SdHoareTripleChecker+Valid, 4371 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:31:17,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4108 Valid, 4371 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:31:17,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58865 states. [2023-12-15 17:31:19,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58865 to 58681. [2023-12-15 17:31:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58681 states, 50744 states have (on average 1.42852356928898) internal successors, (72489), 51207 states have internal predecessors, (72489), 4395 states have call successors, (4395), 3156 states have call predecessors, (4395), 3540 states have return successors, (7150), 4349 states have call predecessors, (7150), 4395 states have call successors, (7150) [2023-12-15 17:31:19,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58681 states to 58681 states and 84034 transitions. [2023-12-15 17:31:19,935 INFO L78 Accepts]: Start accepts. Automaton has 58681 states and 84034 transitions. Word has length 165 [2023-12-15 17:31:19,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:31:19,935 INFO L495 AbstractCegarLoop]: Abstraction has 58681 states and 84034 transitions. [2023-12-15 17:31:19,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-15 17:31:19,935 INFO L276 IsEmpty]: Start isEmpty. Operand 58681 states and 84034 transitions. [2023-12-15 17:31:20,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-15 17:31:20,024 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:31:20,024 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:31:20,031 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 17:31:20,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:20,230 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:31:20,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:31:20,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1950708912, now seen corresponding path program 1 times [2023-12-15 17:31:20,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:31:20,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095925939] [2023-12-15 17:31:20,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:20,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:31:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:31:20,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:31:20,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:31:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:31:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:31:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:31:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:31:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-12-15 17:31:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:20,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-15 17:31:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,368 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-15 17:31:20,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:31:20,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095925939] [2023-12-15 17:31:20,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095925939] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:31:20,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854163476] [2023-12-15 17:31:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:20,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:20,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:31:20,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:31:20,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 17:31:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:20,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:31:20,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:31:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-12-15 17:31:20,498 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:31:20,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854163476] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:31:20,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:31:20,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:31:20,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3669079] [2023-12-15 17:31:20,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:31:20,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:31:20,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:31:20,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:31:20,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:20,499 INFO L87 Difference]: Start difference. First operand 58681 states and 84034 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:31:23,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 17:31:23,621 INFO L93 Difference]: Finished difference Result 169041 states and 242726 transitions. [2023-12-15 17:31:23,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:31:23,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 166 [2023-12-15 17:31:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 17:31:23,920 INFO L225 Difference]: With dead ends: 169041 [2023-12-15 17:31:23,921 INFO L226 Difference]: Without dead ends: 112499 [2023-12-15 17:31:24,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:24,005 INFO L413 NwaCegarLoop]: 4319 mSDtfsCounter, 180 mSDsluCounter, 4144 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 8463 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:31:24,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 8463 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:31:24,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112499 states. [2023-12-15 17:31:27,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112499 to 112389. [2023-12-15 17:31:27,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112389 states, 97046 states have (on average 1.4113616223234342) internal successors, (136967), 97971 states have internal predecessors, (136967), 8417 states have call successors, (8417), 6156 states have call predecessors, (8417), 6924 states have return successors, (15924), 8325 states have call predecessors, (15924), 8417 states have call successors, (15924) [2023-12-15 17:31:28,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112389 states to 112389 states and 161308 transitions. [2023-12-15 17:31:28,453 INFO L78 Accepts]: Start accepts. Automaton has 112389 states and 161308 transitions. Word has length 166 [2023-12-15 17:31:28,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 17:31:28,454 INFO L495 AbstractCegarLoop]: Abstraction has 112389 states and 161308 transitions. [2023-12-15 17:31:28,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-15 17:31:28,454 INFO L276 IsEmpty]: Start isEmpty. Operand 112389 states and 161308 transitions. [2023-12-15 17:31:28,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-12-15 17:31:28,631 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 17:31:28,631 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:31:28,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-15 17:31:28,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:28,836 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 17:31:28,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 17:31:28,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1919212019, now seen corresponding path program 1 times [2023-12-15 17:31:28,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 17:31:28,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810977993] [2023-12-15 17:31:28,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:28,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 17:31:28,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-15 17:31:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-12-15 17:31:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-12-15 17:31:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-12-15 17:31:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-12-15 17:31:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-12-15 17:31:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-12-15 17:31:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-12-15 17:31:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-12-15 17:31:28,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-12-15 17:31:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:28,950 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-12-15 17:31:28,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 17:31:28,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810977993] [2023-12-15 17:31:28,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810977993] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-15 17:31:28,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [824374035] [2023-12-15 17:31:28,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 17:31:28,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 17:31:28,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 17:31:28,952 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 17:31:28,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 17:31:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 17:31:29,058 INFO L262 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 17:31:29,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 17:31:29,138 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-12-15 17:31:29,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 17:31:29,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [824374035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 17:31:29,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-15 17:31:29,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-12-15 17:31:29,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795943321] [2023-12-15 17:31:29,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 17:31:29,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 17:31:29,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 17:31:29,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 17:31:29,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:29,141 INFO L87 Difference]: Start difference. First operand 112389 states and 161308 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Received shutdown request... [2023-12-15 17:31:29,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 17:31:29,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-12-15 17:31:29,967 INFO L413 NwaCegarLoop]: 371 mSDtfsCounter, 326 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 17:31:29,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [326 Valid, 383 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 17:31:29,968 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-15 17:31:29,968 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 17:31:29,968 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 17:31:29,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 17:31:30,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-12-15 17:31:30,174 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (112389states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24302 states constructed, input type IntersectNwa). [2023-12-15 17:31:30,176 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-15 17:31:30,178 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 17:31:30,179 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 17:31:30,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:31:30 BoogieIcfgContainer [2023-12-15 17:31:30,181 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 17:31:30,181 INFO L158 Benchmark]: Toolchain (without parser) took 55670.82ms. Allocated memory was 221.2MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 135.2MB in the beginning and 5.1GB in the end (delta: -5.0GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-15 17:31:30,182 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 17:31:30,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2246.44ms. Allocated memory was 221.2MB in the beginning and 331.4MB in the end (delta: 110.1MB). Free memory was 134.8MB in the beginning and 230.5MB in the end (delta: -95.6MB). Peak memory consumption was 154.2MB. Max. memory is 8.0GB. [2023-12-15 17:31:30,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 281.34ms. Allocated memory is still 331.4MB. Free memory was 230.5MB in the beginning and 151.8MB in the end (delta: 78.6MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. [2023-12-15 17:31:30,182 INFO L158 Benchmark]: Boogie Preprocessor took 454.22ms. Allocated memory is still 331.4MB. Free memory was 151.8MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 100.1MB. Max. memory is 8.0GB. [2023-12-15 17:31:30,183 INFO L158 Benchmark]: RCFGBuilder took 6212.11ms. Allocated memory was 331.4MB in the beginning and 931.1MB in the end (delta: 599.8MB). Free memory was 150.3MB in the beginning and 696.3MB in the end (delta: -546.1MB). Peak memory consumption was 544.7MB. Max. memory is 8.0GB. [2023-12-15 17:31:30,186 INFO L158 Benchmark]: TraceAbstraction took 46470.55ms. Allocated memory was 931.1MB in the beginning and 7.3GB in the end (delta: 6.3GB). Free memory was 695.8MB in the beginning and 5.1GB in the end (delta: -4.4GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. [2023-12-15 17:31:30,189 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 172.0MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 2246.44ms. Allocated memory was 221.2MB in the beginning and 331.4MB in the end (delta: 110.1MB). Free memory was 134.8MB in the beginning and 230.5MB in the end (delta: -95.6MB). Peak memory consumption was 154.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 281.34ms. Allocated memory is still 331.4MB. Free memory was 230.5MB in the beginning and 151.8MB in the end (delta: 78.6MB). Peak memory consumption was 77.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 454.22ms. Allocated memory is still 331.4MB. Free memory was 151.8MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 100.1MB. Max. memory is 8.0GB. * RCFGBuilder took 6212.11ms. Allocated memory was 331.4MB in the beginning and 931.1MB in the end (delta: 599.8MB). Free memory was 150.3MB in the beginning and 696.3MB in the end (delta: -546.1MB). Peak memory consumption was 544.7MB. Max. memory is 8.0GB. * TraceAbstraction took 46470.55ms. Allocated memory was 931.1MB in the beginning and 7.3GB in the end (delta: 6.3GB). Free memory was 695.8MB in the beginning and 5.1GB in the end (delta: -4.4GB). Peak memory consumption was 2.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 11173]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 11173). Cancelled while NwaCegarLoop was constructing difference of abstraction (112389states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24302 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 10998]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 10998). Cancelled while NwaCegarLoop was constructing difference of abstraction (112389states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (24302 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 2264 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 46.4s, OverallIterations: 16, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 1.0s, AutomataDifference: 23.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57154 SdHoareTripleChecker+Valid, 5.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57049 mSDsluCounter, 190507 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 127650 mSDsCounter, 460 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9117 IncrementalHoareTripleChecker+Invalid, 9577 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 460 mSolverCounterUnsat, 62857 mSDtfsCounter, 9117 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1552 GetRequests, 1411 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 243 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112389occurred in iteration=15, InterpolantAutomatonStates: 121, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 16.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 26840 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2878 NumberOfCodeBlocks, 2878 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 2854 ConstructedInterpolants, 0 QuantifiedInterpolants, 5382 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4490 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 24 InterpolantComputations, 16 PerfectInterpolantSequences, 944/1190 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