/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 22:39:58,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 22:39:58,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-02 22:39:58,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 22:39:58,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 22:39:58,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 22:39:58,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 22:39:58,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 22:39:58,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 22:39:58,552 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 22:39:58,553 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 22:39:58,553 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 22:39:58,554 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 22:39:58,555 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 22:39:58,555 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 22:39:58,555 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 22:39:58,556 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 22:39:58,556 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 22:39:58,556 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 22:39:58,556 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 22:39:58,557 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 22:39:58,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 22:39:58,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 22:39:58,562 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 22:39:58,562 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 22:39:58,562 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 22:39:58,562 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 22:39:58,563 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 22:39:58,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 22:39:58,563 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 22:39:58,563 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 22:39:58,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 22:39:58,564 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 22:39:58,564 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 22:39:58,564 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:39:58,564 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 22:39:58,565 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 22:39:58,565 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 22:39:58,565 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 22:39:58,565 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 22:39:58,565 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 22:39:58,566 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 22:39:58,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 22:39:58,567 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 22:39:58,567 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:39:58,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 22:39:58,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 22:39:58,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 22:39:58,840 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 22:39:58,842 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 22:39:58,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c [2024-11-02 22:40:00,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 22:40:00,478 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 22:40:00,478 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c [2024-11-02 22:40:00,494 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691d113e4/e8daf236acb04c669de856c2547e21f4/FLAG0634a2bc5 [2024-11-02 22:40:00,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/691d113e4/e8daf236acb04c669de856c2547e21f4 [2024-11-02 22:40:00,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 22:40:00,848 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 22:40:00,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 22:40:00,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 22:40:00,855 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 22:40:00,856 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:40:00" (1/1) ... [2024-11-02 22:40:00,857 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5fd478 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:00, skipping insertion in model container [2024-11-02 22:40:00,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:40:00" (1/1) ... [2024-11-02 22:40:00,894 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 22:40:01,151 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c[37676,37689] [2024-11-02 22:40:01,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:40:01,175 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 22:40:01,225 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector/s3_clnt_2.BV.c.cil-1a.c[37676,37689] [2024-11-02 22:40:01,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 22:40:01,253 INFO L204 MainTranslator]: Completed translation [2024-11-02 22:40:01,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01 WrapperNode [2024-11-02 22:40:01,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 22:40:01,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 22:40:01,255 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 22:40:01,255 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 22:40:01,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,302 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 470 [2024-11-02 22:40:01,302 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 22:40:01,303 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 22:40:01,303 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 22:40:01,303 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 22:40:01,312 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,316 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,333 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]. [2024-11-02 22:40:01,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 22:40:01,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 22:40:01,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 22:40:01,364 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 22:40:01,365 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (1/1) ... [2024-11-02 22:40:01,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 22:40:01,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:01,394 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) [2024-11-02 22:40:01,401 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 [2024-11-02 22:40:01,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 22:40:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 22:40:01,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 22:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 22:40:01,546 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 22:40:01,548 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 22:40:01,568 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 22:40:02,119 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2024-11-02 22:40:02,119 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2024-11-02 22:40:02,171 INFO L? ?]: Removed 116 outVars from TransFormulas that were not future-live. [2024-11-02 22:40:02,171 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 22:40:02,191 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 22:40:02,191 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 22:40:02,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:40:02 BoogieIcfgContainer [2024-11-02 22:40:02,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 22:40:02,195 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 22:40:02,195 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 22:40:02,198 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 22:40:02,198 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:40:00" (1/3) ... [2024-11-02 22:40:02,199 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23807361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:40:02, skipping insertion in model container [2024-11-02 22:40:02,199 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:40:01" (2/3) ... [2024-11-02 22:40:02,200 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23807361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:40:02, skipping insertion in model container [2024-11-02 22:40:02,200 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:40:02" (3/3) ... [2024-11-02 22:40:02,202 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2024-11-02 22:40:02,217 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 22:40:02,217 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 22:40:02,285 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 22:40:02,295 INFO L333 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, 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;@3ef8b29e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 22:40:02,295 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 22:40:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 22:40:02,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:02,309 INFO L215 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] [2024-11-02 22:40:02,309 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:02,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:02,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2024-11-02 22:40:02,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:02,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301668959] [2024-11-02 22:40:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:02,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:02,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:02,327 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) [2024-11-02 22:40:02,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 22:40:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:02,423 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:02,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:02,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:40:02,475 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:40:02,503 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:02,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301668959] [2024-11-02 22:40:02,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1301668959] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:02,504 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:02,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:02,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556275941] [2024-11-02 22:40:02,506 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:02,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:02,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:02,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:02,538 INFO L87 Difference]: Start difference. First operand has 125 states, 123 states have (on average 1.7317073170731707) internal successors, (213), 124 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:02,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:02,738 INFO L93 Difference]: Finished difference Result 246 states and 421 transitions. [2024-11-02 22:40:02,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:02,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-02 22:40:02,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:02,757 INFO L225 Difference]: With dead ends: 246 [2024-11-02 22:40:02,757 INFO L226 Difference]: Without dead ends: 112 [2024-11-02 22:40:02,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:02,765 INFO L432 NwaCegarLoop]: 208 mSDtfsCounter, 6 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:02,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 319 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:02,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-02 22:40:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2024-11-02 22:40:02,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.5225225225225225) internal successors, (169), 111 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:02,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2024-11-02 22:40:02,806 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2024-11-02 22:40:02,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:02,806 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2024-11-02 22:40:02,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:02,807 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2024-11-02 22:40:02,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-02 22:40:02,812 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:02,813 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-02 22:40:02,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:03,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:03,018 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:03,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:03,019 INFO L85 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2024-11-02 22:40:03,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:03,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1202820703] [2024-11-02 22:40:03,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:03,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:03,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:03,021 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) [2024-11-02 22:40:03,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 22:40:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:03,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:03,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:40:03,114 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:03,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 22:40:03,139 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:03,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1202820703] [2024-11-02 22:40:03,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1202820703] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:03,140 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:03,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:03,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49103370] [2024-11-02 22:40:03,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:03,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:03,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:03,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:03,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:03,142 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:03,295 INFO L93 Difference]: Finished difference Result 229 states and 350 transitions. [2024-11-02 22:40:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:03,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-02 22:40:03,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:03,297 INFO L225 Difference]: With dead ends: 229 [2024-11-02 22:40:03,297 INFO L226 Difference]: Without dead ends: 127 [2024-11-02 22:40:03,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:03,299 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 9 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:03,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 239 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:40:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-02 22:40:03,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-02 22:40:03,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.5) internal successors, (189), 126 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:03,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2024-11-02 22:40:03,315 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2024-11-02 22:40:03,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:03,315 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2024-11-02 22:40:03,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:03,315 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2024-11-02 22:40:03,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-02 22:40:03,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:03,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-11-02 22:40:03,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:03,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:03,518 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:03,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2024-11-02 22:40:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:03,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1626139158] [2024-11-02 22:40:03,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:03,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:03,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:03,521 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) [2024-11-02 22:40:03,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 22:40:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:03,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:03,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:03,625 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 22:40:03,626 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-02 22:40:03,664 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:03,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1626139158] [2024-11-02 22:40:03,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1626139158] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:03,666 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:03,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:03,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735108384] [2024-11-02 22:40:03,667 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:03,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:03,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:03,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:03,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:03,669 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:03,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:03,795 INFO L93 Difference]: Finished difference Result 261 states and 394 transitions. [2024-11-02 22:40:03,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:03,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-02 22:40:03,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:03,797 INFO L225 Difference]: With dead ends: 261 [2024-11-02 22:40:03,797 INFO L226 Difference]: Without dead ends: 144 [2024-11-02 22:40:03,797 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:03,799 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 10 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:03,799 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 252 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:40:03,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-02 22:40:03,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-02 22:40:03,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4755244755244756) internal successors, (211), 143 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:03,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2024-11-02 22:40:03,817 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2024-11-02 22:40:03,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:03,817 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2024-11-02 22:40:03,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:03,817 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2024-11-02 22:40:03,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-02 22:40:03,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:03,819 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-02 22:40:03,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-02 22:40:04,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:04,020 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:04,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:04,021 INFO L85 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2024-11-02 22:40:04,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:04,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974615986] [2024-11-02 22:40:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:04,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:04,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:04,023 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) [2024-11-02 22:40:04,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 22:40:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:04,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:04,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:04,149 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 22:40:04,149 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 22:40:04,201 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:04,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974615986] [2024-11-02 22:40:04,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [974615986] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:04,202 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:04,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:04,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212287854] [2024-11-02 22:40:04,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:04,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:04,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:04,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:04,204 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:04,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:04,433 INFO L93 Difference]: Finished difference Result 341 states and 525 transitions. [2024-11-02 22:40:04,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:04,433 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-02 22:40:04,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:04,436 INFO L225 Difference]: With dead ends: 341 [2024-11-02 22:40:04,436 INFO L226 Difference]: Without dead ends: 207 [2024-11-02 22:40:04,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:04,438 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 74 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:04,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 249 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:04,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-02 22:40:04,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-11-02 22:40:04,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.441747572815534) internal successors, (297), 206 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:04,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2024-11-02 22:40:04,452 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2024-11-02 22:40:04,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:04,453 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2024-11-02 22:40:04,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2024-11-02 22:40:04,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-02 22:40:04,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:04,455 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-02 22:40:04,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-02 22:40:04,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:04,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:04,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:04,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1528022105, now seen corresponding path program 1 times [2024-11-02 22:40:04,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:04,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [867749954] [2024-11-02 22:40:04,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:04,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:04,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:04,659 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) [2024-11-02 22:40:04,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 22:40:04,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:04,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:04,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:04,758 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 22:40:04,759 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:04,784 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-02 22:40:04,785 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:04,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [867749954] [2024-11-02 22:40:04,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [867749954] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:04,785 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:04,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:04,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435603791] [2024-11-02 22:40:04,786 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:04,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:04,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:04,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:04,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:04,787 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:04,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:04,915 INFO L93 Difference]: Finished difference Result 423 states and 614 transitions. [2024-11-02 22:40:04,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:04,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-02 22:40:04,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:04,917 INFO L225 Difference]: With dead ends: 423 [2024-11-02 22:40:04,917 INFO L226 Difference]: Without dead ends: 226 [2024-11-02 22:40:04,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:04,919 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 9 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:04,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 257 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:40:04,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-02 22:40:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-11-02 22:40:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.4266666666666667) internal successors, (321), 225 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:04,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2024-11-02 22:40:04,931 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2024-11-02 22:40:04,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:04,931 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2024-11-02 22:40:04,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:04,931 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2024-11-02 22:40:04,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-02 22:40:04,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:04,937 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-02 22:40:04,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 22:40:05,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:05,141 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:05,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:05,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1678422895, now seen corresponding path program 1 times [2024-11-02 22:40:05,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:05,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426163121] [2024-11-02 22:40:05,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:05,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:05,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:05,143 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) [2024-11-02 22:40:05,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 22:40:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:05,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:05,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:05,291 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-02 22:40:05,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:05,322 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-02 22:40:05,322 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:05,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426163121] [2024-11-02 22:40:05,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1426163121] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:05,322 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:05,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:05,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910236219] [2024-11-02 22:40:05,323 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:05,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:05,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:05,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:05,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:05,324 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:05,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:05,441 INFO L93 Difference]: Finished difference Result 463 states and 666 transitions. [2024-11-02 22:40:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:05,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-02 22:40:05,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:05,443 INFO L225 Difference]: With dead ends: 463 [2024-11-02 22:40:05,444 INFO L226 Difference]: Without dead ends: 247 [2024-11-02 22:40:05,444 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:05,445 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 9 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:05,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 256 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:40:05,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-11-02 22:40:05,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 247. [2024-11-02 22:40:05,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.410569105691057) internal successors, (347), 246 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:05,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2024-11-02 22:40:05,470 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2024-11-02 22:40:05,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:05,471 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2024-11-02 22:40:05,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2024-11-02 22:40:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-02 22:40:05,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:05,473 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2024-11-02 22:40:05,496 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-02 22:40:05,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:05,677 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:05,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:05,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2024-11-02 22:40:05,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:05,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1137401308] [2024-11-02 22:40:05,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:05,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:05,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:05,679 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) [2024-11-02 22:40:05,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 22:40:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:05,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:05,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-02 22:40:05,819 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-02 22:40:05,889 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:05,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1137401308] [2024-11-02 22:40:05,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1137401308] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:05,889 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:05,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:05,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247372839] [2024-11-02 22:40:05,890 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:05,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:05,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:05,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:05,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:05,891 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:05,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:05,934 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2024-11-02 22:40:05,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:05,935 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-02 22:40:05,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:05,938 INFO L225 Difference]: With dead ends: 743 [2024-11-02 22:40:05,938 INFO L226 Difference]: Without dead ends: 506 [2024-11-02 22:40:05,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:05,939 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 257 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:05,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 381 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:05,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-02 22:40:05,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2024-11-02 22:40:05,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.39009900990099) internal successors, (702), 505 states have internal predecessors, (702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:05,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2024-11-02 22:40:05,960 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2024-11-02 22:40:05,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:05,963 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2024-11-02 22:40:05,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:05,963 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2024-11-02 22:40:05,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-02 22:40:05,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:05,965 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2024-11-02 22:40:05,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 22:40:06,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:06,166 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:06,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:06,167 INFO L85 PathProgramCache]: Analyzing trace with hash -847602632, now seen corresponding path program 1 times [2024-11-02 22:40:06,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:06,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1506565571] [2024-11-02 22:40:06,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:06,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:06,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:06,169 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) [2024-11-02 22:40:06,170 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 22:40:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:06,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:06,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:06,269 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-02 22:40:06,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:06,298 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-02 22:40:06,299 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:06,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1506565571] [2024-11-02 22:40:06,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1506565571] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:06,299 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:06,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:06,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675738872] [2024-11-02 22:40:06,300 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:06,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:06,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:06,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:06,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:06,301 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:06,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:06,326 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2024-11-02 22:40:06,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:06,327 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-02 22:40:06,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:06,329 INFO L225 Difference]: With dead ends: 1023 [2024-11-02 22:40:06,329 INFO L226 Difference]: Without dead ends: 527 [2024-11-02 22:40:06,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:06,331 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:06,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 337 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:06,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2024-11-02 22:40:06,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2024-11-02 22:40:06,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3859315589353611) internal successors, (729), 526 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2024-11-02 22:40:06,345 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 103 [2024-11-02 22:40:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:06,345 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2024-11-02 22:40:06,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:06,346 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2024-11-02 22:40:06,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-02 22:40:06,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:06,347 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2024-11-02 22:40:06,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-02 22:40:06,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:06,548 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:06,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash -1168582955, now seen corresponding path program 1 times [2024-11-02 22:40:06,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:06,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1769433077] [2024-11-02 22:40:06,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:06,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:06,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:06,550 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:06,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-02 22:40:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:06,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:06,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-02 22:40:06,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-02 22:40:06,712 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:06,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1769433077] [2024-11-02 22:40:06,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1769433077] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:06,712 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:06,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:06,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550508486] [2024-11-02 22:40:06,713 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:06,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:06,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:06,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:06,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:06,714 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:06,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:06,741 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2024-11-02 22:40:06,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:06,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-02 22:40:06,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:06,745 INFO L225 Difference]: With dead ends: 1070 [2024-11-02 22:40:06,745 INFO L226 Difference]: Without dead ends: 553 [2024-11-02 22:40:06,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:06,747 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 20 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:06,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 309 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:06,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2024-11-02 22:40:06,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2024-11-02 22:40:06,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.3804347826086956) internal successors, (762), 552 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2024-11-02 22:40:06,761 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2024-11-02 22:40:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:06,762 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2024-11-02 22:40:06,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2024-11-02 22:40:06,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-02 22:40:06,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:06,763 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 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] [2024-11-02 22:40:06,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-02 22:40:06,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:06,968 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:06,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:06,968 INFO L85 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2024-11-02 22:40:06,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:06,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2077066999] [2024-11-02 22:40:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:06,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:06,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:06,970 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:06,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-02 22:40:07,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:07,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:07,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-02 22:40:07,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-11-02 22:40:07,115 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:07,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2077066999] [2024-11-02 22:40:07,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2077066999] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:07,116 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:07,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:07,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327742812] [2024-11-02 22:40:07,116 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:07,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:07,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:07,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:07,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:07,117 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:07,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:07,178 INFO L93 Difference]: Finished difference Result 1520 states and 2113 transitions. [2024-11-02 22:40:07,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:07,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-02 22:40:07,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:07,183 INFO L225 Difference]: With dead ends: 1520 [2024-11-02 22:40:07,183 INFO L226 Difference]: Without dead ends: 1003 [2024-11-02 22:40:07,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:07,184 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 259 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:07,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 590 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:07,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-02 22:40:07,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-11-02 22:40:07,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 1002 states have (on average 1.3892215568862276) internal successors, (1392), 1002 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:07,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2024-11-02 22:40:07,222 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 105 [2024-11-02 22:40:07,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:07,222 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2024-11-02 22:40:07,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:07,222 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2024-11-02 22:40:07,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-02 22:40:07,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:07,225 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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] [2024-11-02 22:40:07,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:07,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:07,426 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:07,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:07,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2024-11-02 22:40:07,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:07,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [725015351] [2024-11-02 22:40:07,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:07,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:07,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:07,429 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:07,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-02 22:40:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:07,510 INFO L255 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:07,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:07,624 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-02 22:40:07,624 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:07,725 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 345 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-02 22:40:07,725 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:07,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [725015351] [2024-11-02 22:40:07,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [725015351] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:07,726 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:07,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:07,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794121964] [2024-11-02 22:40:07,726 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:07,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:07,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:07,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:07,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:07,727 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:07,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:07,754 INFO L93 Difference]: Finished difference Result 2202 states and 3061 transitions. [2024-11-02 22:40:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:07,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 173 [2024-11-02 22:40:07,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:07,759 INFO L225 Difference]: With dead ends: 2202 [2024-11-02 22:40:07,759 INFO L226 Difference]: Without dead ends: 1235 [2024-11-02 22:40:07,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:07,761 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 117 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:07,761 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 466 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:07,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2024-11-02 22:40:07,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1235. [2024-11-02 22:40:07,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1235 states, 1234 states have (on average 1.3873581847649918) internal successors, (1712), 1234 states have internal predecessors, (1712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:07,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1235 states to 1235 states and 1712 transitions. [2024-11-02 22:40:07,794 INFO L78 Accepts]: Start accepts. Automaton has 1235 states and 1712 transitions. Word has length 173 [2024-11-02 22:40:07,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:07,794 INFO L471 AbstractCegarLoop]: Abstraction has 1235 states and 1712 transitions. [2024-11-02 22:40:07,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:07,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1235 states and 1712 transitions. [2024-11-02 22:40:07,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-02 22:40:07,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:07,797 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 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] [2024-11-02 22:40:07,815 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-02 22:40:07,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:07,998 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:07,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash 324123553, now seen corresponding path program 1 times [2024-11-02 22:40:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:07,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1941411993] [2024-11-02 22:40:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:07,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:07,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:08,001 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:08,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-02 22:40:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:08,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:08,096 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-02 22:40:08,117 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:08,139 INFO L134 CoverageAnalysis]: Checked inductivity of 472 backedges. 312 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-02 22:40:08,139 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:08,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1941411993] [2024-11-02 22:40:08,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1941411993] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:08,139 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:08,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:08,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232488881] [2024-11-02 22:40:08,140 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:08,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:08,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:08,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:08,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:08,141 INFO L87 Difference]: Start difference. First operand 1235 states and 1712 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:08,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:08,322 INFO L93 Difference]: Finished difference Result 2528 states and 3560 transitions. [2024-11-02 22:40:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:08,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2024-11-02 22:40:08,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:08,328 INFO L225 Difference]: With dead ends: 2528 [2024-11-02 22:40:08,328 INFO L226 Difference]: Without dead ends: 1350 [2024-11-02 22:40:08,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 346 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:08,331 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 75 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:08,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 219 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:08,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1350 states. [2024-11-02 22:40:08,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1350 to 1350. [2024-11-02 22:40:08,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1350 states, 1349 states have (on average 1.369162342475908) internal successors, (1847), 1349 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:08,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1847 transitions. [2024-11-02 22:40:08,368 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1847 transitions. Word has length 175 [2024-11-02 22:40:08,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:08,368 INFO L471 AbstractCegarLoop]: Abstraction has 1350 states and 1847 transitions. [2024-11-02 22:40:08,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:08,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1847 transitions. [2024-11-02 22:40:08,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-02 22:40:08,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:08,373 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2024-11-02 22:40:08,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-02 22:40:08,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:08,574 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:08,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:08,574 INFO L85 PathProgramCache]: Analyzing trace with hash 342847369, now seen corresponding path program 1 times [2024-11-02 22:40:08,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:08,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478030527] [2024-11-02 22:40:08,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:08,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:08,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:08,577 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:08,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-02 22:40:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:08,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-02 22:40:08,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:08,910 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 458 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-02 22:40:08,910 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 442 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-02 22:40:09,033 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:09,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478030527] [2024-11-02 22:40:09,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1478030527] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 22:40:09,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 22:40:09,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-02 22:40:09,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32519262] [2024-11-02 22:40:09,034 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 22:40:09,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 22:40:09,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:09,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 22:40:09,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-02 22:40:09,036 INFO L87 Difference]: Start difference. First operand 1350 states and 1847 transitions. Second operand has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:09,555 INFO L93 Difference]: Finished difference Result 3030 states and 4192 transitions. [2024-11-02 22:40:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 22:40:09,556 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 196 [2024-11-02 22:40:09,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:09,561 INFO L225 Difference]: With dead ends: 3030 [2024-11-02 22:40:09,561 INFO L226 Difference]: Without dead ends: 1737 [2024-11-02 22:40:09,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2024-11-02 22:40:09,564 INFO L432 NwaCegarLoop]: 221 mSDtfsCounter, 673 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:09,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 721 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-02 22:40:09,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2024-11-02 22:40:09,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1663. [2024-11-02 22:40:09,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1663 states, 1662 states have (on average 1.362214199759326) internal successors, (2264), 1662 states have internal predecessors, (2264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:09,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1663 states to 1663 states and 2264 transitions. [2024-11-02 22:40:09,603 INFO L78 Accepts]: Start accepts. Automaton has 1663 states and 2264 transitions. Word has length 196 [2024-11-02 22:40:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:09,604 INFO L471 AbstractCegarLoop]: Abstraction has 1663 states and 2264 transitions. [2024-11-02 22:40:09,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.375) internal successors, (187), 8 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 1663 states and 2264 transitions. [2024-11-02 22:40:09,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-02 22:40:09,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:09,608 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 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] [2024-11-02 22:40:09,624 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-02 22:40:09,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:09,809 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:09,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:09,809 INFO L85 PathProgramCache]: Analyzing trace with hash 228275513, now seen corresponding path program 1 times [2024-11-02 22:40:09,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:09,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [434944875] [2024-11-02 22:40:09,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:09,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:09,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:09,813 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:09,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-02 22:40:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:09,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:09,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:09,936 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-02 22:40:09,937 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:09,961 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 463 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-02 22:40:09,961 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:09,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [434944875] [2024-11-02 22:40:09,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [434944875] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:09,962 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:09,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:09,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300329597] [2024-11-02 22:40:09,962 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:09,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:09,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:09,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:09,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:09,963 INFO L87 Difference]: Start difference. First operand 1663 states and 2264 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:10,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:10,146 INFO L93 Difference]: Finished difference Result 3437 states and 4748 transitions. [2024-11-02 22:40:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:10,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-02 22:40:10,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:10,153 INFO L225 Difference]: With dead ends: 3437 [2024-11-02 22:40:10,153 INFO L226 Difference]: Without dead ends: 1831 [2024-11-02 22:40:10,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:10,156 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 77 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:10,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 203 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 22:40:10,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-11-02 22:40:10,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1831. [2024-11-02 22:40:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1831 states, 1830 states have (on average 1.3420765027322403) internal successors, (2456), 1830 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:10,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1831 states to 1831 states and 2456 transitions. [2024-11-02 22:40:10,226 INFO L78 Accepts]: Start accepts. Automaton has 1831 states and 2456 transitions. Word has length 221 [2024-11-02 22:40:10,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:10,227 INFO L471 AbstractCegarLoop]: Abstraction has 1831 states and 2456 transitions. [2024-11-02 22:40:10,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:10,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1831 states and 2456 transitions. [2024-11-02 22:40:10,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-02 22:40:10,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:10,231 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2024-11-02 22:40:10,249 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-02 22:40:10,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:10,432 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:10,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:10,433 INFO L85 PathProgramCache]: Analyzing trace with hash 629263864, now seen corresponding path program 1 times [2024-11-02 22:40:10,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:10,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2072618546] [2024-11-02 22:40:10,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:10,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:10,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:10,434 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:10,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-02 22:40:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:10,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:10,537 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:10,553 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-02 22:40:10,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:10,571 INFO L134 CoverageAnalysis]: Checked inductivity of 807 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-02 22:40:10,571 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:10,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2072618546] [2024-11-02 22:40:10,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2072618546] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:10,571 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:10,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:10,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452929217] [2024-11-02 22:40:10,572 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:10,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:10,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:10,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:10,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:10,573 INFO L87 Difference]: Start difference. First operand 1831 states and 2456 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:10,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:10,764 INFO L93 Difference]: Finished difference Result 3791 states and 5168 transitions. [2024-11-02 22:40:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:10,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 232 [2024-11-02 22:40:10,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:10,772 INFO L225 Difference]: With dead ends: 3791 [2024-11-02 22:40:10,773 INFO L226 Difference]: Without dead ends: 2017 [2024-11-02 22:40:10,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:10,778 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 84 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:10,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 206 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2024-11-02 22:40:10,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 2017. [2024-11-02 22:40:10,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 2016 states have (on average 1.3224206349206349) internal successors, (2666), 2016 states have internal predecessors, (2666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:10,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2666 transitions. [2024-11-02 22:40:10,824 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2666 transitions. Word has length 232 [2024-11-02 22:40:10,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:10,824 INFO L471 AbstractCegarLoop]: Abstraction has 2017 states and 2666 transitions. [2024-11-02 22:40:10,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:10,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2666 transitions. [2024-11-02 22:40:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-02 22:40:10,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:10,830 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2024-11-02 22:40:10,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:11,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:11,031 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:11,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:11,031 INFO L85 PathProgramCache]: Analyzing trace with hash -749493446, now seen corresponding path program 1 times [2024-11-02 22:40:11,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:11,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075961442] [2024-11-02 22:40:11,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:11,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:11,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:11,033 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:11,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-02 22:40:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:11,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:11,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:11,160 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-02 22:40:11,161 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:11,180 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2024-11-02 22:40:11,180 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:11,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075961442] [2024-11-02 22:40:11,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1075961442] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:11,181 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:11,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:11,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905479675] [2024-11-02 22:40:11,181 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:11,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:11,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:11,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:11,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:11,182 INFO L87 Difference]: Start difference. First operand 2017 states and 2666 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:11,390 INFO L93 Difference]: Finished difference Result 4199 states and 5642 transitions. [2024-11-02 22:40:11,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:11,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2024-11-02 22:40:11,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:11,398 INFO L225 Difference]: With dead ends: 4199 [2024-11-02 22:40:11,398 INFO L226 Difference]: Without dead ends: 2239 [2024-11-02 22:40:11,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 520 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:11,402 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 96 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:11,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 249 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:11,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2239 states. [2024-11-02 22:40:11,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2239 to 2239. [2024-11-02 22:40:11,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2239 states, 2238 states have (on average 1.3011617515638962) internal successors, (2912), 2238 states have internal predecessors, (2912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2239 states to 2239 states and 2912 transitions. [2024-11-02 22:40:11,472 INFO L78 Accepts]: Start accepts. Automaton has 2239 states and 2912 transitions. Word has length 262 [2024-11-02 22:40:11,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:11,472 INFO L471 AbstractCegarLoop]: Abstraction has 2239 states and 2912 transitions. [2024-11-02 22:40:11,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:11,472 INFO L276 IsEmpty]: Start isEmpty. Operand 2239 states and 2912 transitions. [2024-11-02 22:40:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-02 22:40:11,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:11,478 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 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] [2024-11-02 22:40:11,495 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-02 22:40:11,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:11,679 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:11,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:11,679 INFO L85 PathProgramCache]: Analyzing trace with hash -120716101, now seen corresponding path program 1 times [2024-11-02 22:40:11,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:11,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216970928] [2024-11-02 22:40:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:11,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:11,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:11,683 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:11,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-02 22:40:11,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:11,792 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:11,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-02 22:40:11,839 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:11,882 INFO L134 CoverageAnalysis]: Checked inductivity of 998 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-11-02 22:40:11,883 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:11,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216970928] [2024-11-02 22:40:11,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [216970928] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:11,883 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:11,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:11,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771914993] [2024-11-02 22:40:11,884 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:11,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:11,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:11,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:11,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:11,885 INFO L87 Difference]: Start difference. First operand 2239 states and 2912 transitions. Second operand has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:11,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:11,973 INFO L93 Difference]: Finished difference Result 8587 states and 11198 transitions. [2024-11-02 22:40:11,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:11,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2024-11-02 22:40:11,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:11,993 INFO L225 Difference]: With dead ends: 8587 [2024-11-02 22:40:11,993 INFO L226 Difference]: Without dead ends: 6405 [2024-11-02 22:40:11,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 524 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:11,999 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 246 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:11,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 894 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:12,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6405 states. [2024-11-02 22:40:12,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6405 to 6401. [2024-11-02 22:40:12,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6401 states, 6400 states have (on average 1.303125) internal successors, (8340), 6400 states have internal predecessors, (8340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:12,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6401 states to 6401 states and 8340 transitions. [2024-11-02 22:40:12,168 INFO L78 Accepts]: Start accepts. Automaton has 6401 states and 8340 transitions. Word has length 263 [2024-11-02 22:40:12,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:12,168 INFO L471 AbstractCegarLoop]: Abstraction has 6401 states and 8340 transitions. [2024-11-02 22:40:12,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.25) internal successors, (173), 4 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:12,169 INFO L276 IsEmpty]: Start isEmpty. Operand 6401 states and 8340 transitions. [2024-11-02 22:40:12,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-02 22:40:12,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:12,181 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2024-11-02 22:40:12,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:12,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:12,382 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:12,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:12,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1096027025, now seen corresponding path program 1 times [2024-11-02 22:40:12,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:12,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649933114] [2024-11-02 22:40:12,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:12,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:12,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:12,385 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:12,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-02 22:40:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:12,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:12,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-02 22:40:12,525 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 654 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-02 22:40:12,544 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:12,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649933114] [2024-11-02 22:40:12,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [649933114] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:12,545 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:12,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:12,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995286839] [2024-11-02 22:40:12,545 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:12,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:12,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:12,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:12,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:12,547 INFO L87 Difference]: Start difference. First operand 6401 states and 8340 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:12,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:12,824 INFO L93 Difference]: Finished difference Result 12943 states and 16948 transitions. [2024-11-02 22:40:12,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:12,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2024-11-02 22:40:12,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:12,855 INFO L225 Difference]: With dead ends: 12943 [2024-11-02 22:40:12,855 INFO L226 Difference]: Without dead ends: 6599 [2024-11-02 22:40:12,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 570 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:12,867 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 91 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:12,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 205 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:12,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6599 states. [2024-11-02 22:40:13,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6599 to 6599. [2024-11-02 22:40:13,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6599 states, 6598 states have (on average 1.2958472264322523) internal successors, (8550), 6598 states have internal predecessors, (8550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:13,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6599 states to 6599 states and 8550 transitions. [2024-11-02 22:40:13,065 INFO L78 Accepts]: Start accepts. Automaton has 6599 states and 8550 transitions. Word has length 287 [2024-11-02 22:40:13,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:13,066 INFO L471 AbstractCegarLoop]: Abstraction has 6599 states and 8550 transitions. [2024-11-02 22:40:13,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:13,066 INFO L276 IsEmpty]: Start isEmpty. Operand 6599 states and 8550 transitions. [2024-11-02 22:40:13,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2024-11-02 22:40:13,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:13,079 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 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] [2024-11-02 22:40:13,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-02 22:40:13,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:13,279 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:13,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:13,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1966900500, now seen corresponding path program 1 times [2024-11-02 22:40:13,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:13,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938713797] [2024-11-02 22:40:13,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:13,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:13,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:13,282 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:13,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-02 22:40:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:13,396 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:13,399 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:13,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-02 22:40:13,422 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:13,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 667 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-02 22:40:13,446 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:13,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938713797] [2024-11-02 22:40:13,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1938713797] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:13,446 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:13,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:13,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783579057] [2024-11-02 22:40:13,447 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:13,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:13,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:13,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:13,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:13,449 INFO L87 Difference]: Start difference. First operand 6599 states and 8550 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:13,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:13,736 INFO L93 Difference]: Finished difference Result 13807 states and 18178 transitions. [2024-11-02 22:40:13,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:13,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 299 [2024-11-02 22:40:13,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:13,755 INFO L225 Difference]: With dead ends: 13807 [2024-11-02 22:40:13,755 INFO L226 Difference]: Without dead ends: 7265 [2024-11-02 22:40:13,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 594 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:13,763 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 92 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:13,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 201 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:13,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2024-11-02 22:40:13,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 7265. [2024-11-02 22:40:13,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7265 states, 7264 states have (on average 1.27863436123348) internal successors, (9288), 7264 states have internal predecessors, (9288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:13,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7265 states to 7265 states and 9288 transitions. [2024-11-02 22:40:13,922 INFO L78 Accepts]: Start accepts. Automaton has 7265 states and 9288 transitions. Word has length 299 [2024-11-02 22:40:13,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:13,922 INFO L471 AbstractCegarLoop]: Abstraction has 7265 states and 9288 transitions. [2024-11-02 22:40:13,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:13,923 INFO L276 IsEmpty]: Start isEmpty. Operand 7265 states and 9288 transitions. [2024-11-02 22:40:13,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-02 22:40:13,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:13,934 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-02 22:40:13,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:14,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:14,139 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:14,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:14,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1281776100, now seen corresponding path program 1 times [2024-11-02 22:40:14,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:14,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404502598] [2024-11-02 22:40:14,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:14,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:14,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:14,141 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:14,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-02 22:40:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:14,257 INFO L255 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:14,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:14,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2024-11-02 22:40:14,288 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:14,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1448 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2024-11-02 22:40:14,326 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:14,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404502598] [2024-11-02 22:40:14,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1404502598] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:14,326 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:14,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:14,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859662262] [2024-11-02 22:40:14,327 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:14,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:14,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:14,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:14,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:14,328 INFO L87 Difference]: Start difference. First operand 7265 states and 9288 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:14,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:14,605 INFO L93 Difference]: Finished difference Result 15229 states and 19780 transitions. [2024-11-02 22:40:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:14,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 336 [2024-11-02 22:40:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:14,622 INFO L225 Difference]: With dead ends: 15229 [2024-11-02 22:40:14,623 INFO L226 Difference]: Without dead ends: 8021 [2024-11-02 22:40:14,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 670 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:14,631 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 94 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:14,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 248 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:14,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2024-11-02 22:40:14,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 8003. [2024-11-02 22:40:14,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8003 states, 8002 states have (on average 1.2619345163709073) internal successors, (10098), 8002 states have internal predecessors, (10098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8003 states to 8003 states and 10098 transitions. [2024-11-02 22:40:14,825 INFO L78 Accepts]: Start accepts. Automaton has 8003 states and 10098 transitions. Word has length 336 [2024-11-02 22:40:14,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:14,825 INFO L471 AbstractCegarLoop]: Abstraction has 8003 states and 10098 transitions. [2024-11-02 22:40:14,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 8003 states and 10098 transitions. [2024-11-02 22:40:14,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2024-11-02 22:40:14,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:14,836 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:40:14,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-02 22:40:15,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:15,037 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:15,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:15,038 INFO L85 PathProgramCache]: Analyzing trace with hash -321729676, now seen corresponding path program 1 times [2024-11-02 22:40:15,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:15,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65930438] [2024-11-02 22:40:15,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:15,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:15,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:15,039 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:15,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-02 22:40:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:15,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 22:40:15,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:15,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-02 22:40:15,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 905 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-02 22:40:15,317 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:15,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65930438] [2024-11-02 22:40:15,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [65930438] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 22:40:15,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 22:40:15,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-02 22:40:15,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796589259] [2024-11-02 22:40:15,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 22:40:15,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 22:40:15,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:15,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 22:40:15,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 22:40:15,319 INFO L87 Difference]: Start difference. First operand 8003 states and 10098 transitions. Second operand has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:16,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:16,149 INFO L93 Difference]: Finished difference Result 25507 states and 32263 transitions. [2024-11-02 22:40:16,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 22:40:16,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 359 [2024-11-02 22:40:16,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:16,181 INFO L225 Difference]: With dead ends: 25507 [2024-11-02 22:40:16,181 INFO L226 Difference]: Without dead ends: 17561 [2024-11-02 22:40:16,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 724 GetRequests, 716 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-02 22:40:16,193 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 343 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 835 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 835 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:16,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 1027 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 835 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-02 22:40:16,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17561 states. [2024-11-02 22:40:16,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17561 to 10930. [2024-11-02 22:40:16,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10930 states, 10929 states have (on average 1.2780675267636563) internal successors, (13968), 10929 states have internal predecessors, (13968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10930 states to 10930 states and 13968 transitions. [2024-11-02 22:40:16,548 INFO L78 Accepts]: Start accepts. Automaton has 10930 states and 13968 transitions. Word has length 359 [2024-11-02 22:40:16,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:16,548 INFO L471 AbstractCegarLoop]: Abstraction has 10930 states and 13968 transitions. [2024-11-02 22:40:16,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.333333333333336) internal successors, (230), 6 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:16,549 INFO L276 IsEmpty]: Start isEmpty. Operand 10930 states and 13968 transitions. [2024-11-02 22:40:16,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-02 22:40:16,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:16,561 INFO L215 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:40:16,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-02 22:40:16,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:16,762 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:16,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:16,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1433832451, now seen corresponding path program 1 times [2024-11-02 22:40:16,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:16,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480339495] [2024-11-02 22:40:16,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:16,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:16,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:16,764 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:16,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-02 22:40:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:16,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:16,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:17,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-02 22:40:17,118 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-02 22:40:17,350 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:17,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480339495] [2024-11-02 22:40:17,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1480339495] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:17,351 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:17,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:17,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180796429] [2024-11-02 22:40:17,351 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:17,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:17,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:17,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:17,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:17,353 INFO L87 Difference]: Start difference. First operand 10930 states and 13968 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:17,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:17,645 INFO L93 Difference]: Finished difference Result 27951 states and 35832 transitions. [2024-11-02 22:40:17,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:17,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 361 [2024-11-02 22:40:17,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:17,662 INFO L225 Difference]: With dead ends: 27951 [2024-11-02 22:40:17,662 INFO L226 Difference]: Without dead ends: 9802 [2024-11-02 22:40:17,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 719 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:17,675 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 83 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:17,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 394 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:17,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9802 states. [2024-11-02 22:40:17,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9802 to 8998. [2024-11-02 22:40:17,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8998 states, 8997 states have (on average 1.2640880293431143) internal successors, (11373), 8997 states have internal predecessors, (11373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:17,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8998 states to 8998 states and 11373 transitions. [2024-11-02 22:40:17,869 INFO L78 Accepts]: Start accepts. Automaton has 8998 states and 11373 transitions. Word has length 361 [2024-11-02 22:40:17,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:17,870 INFO L471 AbstractCegarLoop]: Abstraction has 8998 states and 11373 transitions. [2024-11-02 22:40:17,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:17,871 INFO L276 IsEmpty]: Start isEmpty. Operand 8998 states and 11373 transitions. [2024-11-02 22:40:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-02 22:40:17,880 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:17,880 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 18, 17, 16, 14, 14, 12, 12, 10, 10, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 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] [2024-11-02 22:40:17,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:18,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:18,081 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:18,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:18,081 INFO L85 PathProgramCache]: Analyzing trace with hash -447859215, now seen corresponding path program 1 times [2024-11-02 22:40:18,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [237172147] [2024-11-02 22:40:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:18,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:18,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:18,084 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:18,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-02 22:40:18,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:18,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:18,235 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2529 backedges. 1007 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2024-11-02 22:40:18,619 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2529 backedges. 1007 proven. 0 refuted. 0 times theorem prover too weak. 1522 trivial. 0 not checked. [2024-11-02 22:40:19,104 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:19,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [237172147] [2024-11-02 22:40:19,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [237172147] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:19,104 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:19,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-02 22:40:19,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674676825] [2024-11-02 22:40:19,105 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:19,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 22:40:19,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:19,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 22:40:19,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:19,106 INFO L87 Difference]: Start difference. First operand 8998 states and 11373 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:19,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:19,213 INFO L93 Difference]: Finished difference Result 9002 states and 11376 transitions. [2024-11-02 22:40:19,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 22:40:19,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 471 [2024-11-02 22:40:19,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:19,231 INFO L225 Difference]: With dead ends: 9002 [2024-11-02 22:40:19,231 INFO L226 Difference]: Without dead ends: 7732 [2024-11-02 22:40:19,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 939 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 22:40:19,239 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 60 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:19,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 257 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 22:40:19,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7732 states. [2024-11-02 22:40:19,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7732 to 7730. [2024-11-02 22:40:19,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7730 states, 7729 states have (on average 1.2564367964807865) internal successors, (9711), 7729 states have internal predecessors, (9711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7730 states to 7730 states and 9711 transitions. [2024-11-02 22:40:19,544 INFO L78 Accepts]: Start accepts. Automaton has 7730 states and 9711 transitions. Word has length 471 [2024-11-02 22:40:19,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:19,546 INFO L471 AbstractCegarLoop]: Abstraction has 7730 states and 9711 transitions. [2024-11-02 22:40:19,546 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 7730 states and 9711 transitions. [2024-11-02 22:40:19,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-02 22:40:19,562 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:19,563 INFO L215 NwaCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 14, 14, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 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] [2024-11-02 22:40:19,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:19,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:19,764 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:19,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:19,764 INFO L85 PathProgramCache]: Analyzing trace with hash -839302048, now seen corresponding path program 1 times [2024-11-02 22:40:19,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:19,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524399396] [2024-11-02 22:40:19,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:19,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:19,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:19,767 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:19,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-02 22:40:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:19,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 22:40:19,941 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:19,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2024-11-02 22:40:19,976 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:20,021 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2024-11-02 22:40:20,021 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:20,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524399396] [2024-11-02 22:40:20,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [524399396] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 22:40:20,022 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 22:40:20,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-02 22:40:20,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903810708] [2024-11-02 22:40:20,023 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 22:40:20,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-02 22:40:20,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:20,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-02 22:40:20,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:20,024 INFO L87 Difference]: Start difference. First operand 7730 states and 9711 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:20,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:20,318 INFO L93 Difference]: Finished difference Result 15727 states and 19978 transitions. [2024-11-02 22:40:20,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-02 22:40:20,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 544 [2024-11-02 22:40:20,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:20,334 INFO L225 Difference]: With dead ends: 15727 [2024-11-02 22:40:20,334 INFO L226 Difference]: Without dead ends: 7298 [2024-11-02 22:40:20,342 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1084 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-02 22:40:20,342 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 84 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:20,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 251 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7298 states. [2024-11-02 22:40:20,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7298 to 7298. [2024-11-02 22:40:20,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7298 states, 7297 states have (on average 1.2420172673701522) internal successors, (9063), 7297 states have internal predecessors, (9063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7298 states to 7298 states and 9063 transitions. [2024-11-02 22:40:20,552 INFO L78 Accepts]: Start accepts. Automaton has 7298 states and 9063 transitions. Word has length 544 [2024-11-02 22:40:20,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:20,553 INFO L471 AbstractCegarLoop]: Abstraction has 7298 states and 9063 transitions. [2024-11-02 22:40:20,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:20,553 INFO L276 IsEmpty]: Start isEmpty. Operand 7298 states and 9063 transitions. [2024-11-02 22:40:20,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-11-02 22:40:20,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 22:40:20,567 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 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] [2024-11-02 22:40:20,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2024-11-02 22:40:20,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:20,768 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 22:40:20,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 22:40:20,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1723660819, now seen corresponding path program 1 times [2024-11-02 22:40:20,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 22:40:20,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1204527493] [2024-11-02 22:40:20,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 22:40:20,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:20,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 22:40:20,771 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 22:40:20,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-02 22:40:20,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 22:40:20,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 22:40:20,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 22:40:21,010 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2024-11-02 22:40:21,011 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 22:40:21,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2024-11-02 22:40:21,100 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 22:40:21,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1204527493] [2024-11-02 22:40:21,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1204527493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 22:40:21,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-02 22:40:21,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2024-11-02 22:40:21,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101915131] [2024-11-02 22:40:21,100 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-02 22:40:21,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 22:40:21,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 22:40:21,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 22:40:21,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 22:40:21,102 INFO L87 Difference]: Start difference. First operand 7298 states and 9063 transitions. Second operand has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 22:40:21,327 INFO L93 Difference]: Finished difference Result 7511 states and 9333 transitions. [2024-11-02 22:40:21,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 22:40:21,328 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 619 [2024-11-02 22:40:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 22:40:21,330 INFO L225 Difference]: With dead ends: 7511 [2024-11-02 22:40:21,330 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 22:40:21,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-02 22:40:21,335 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 95 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 22:40:21,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 279 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 22:40:21,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 22:40:21,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 22:40:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:21,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 22:40:21,337 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2024-11-02 22:40:21,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 22:40:21,338 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 22:40:21,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-02 22:40:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 22:40:21,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 22:40:21,340 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 22:40:21,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-02 22:40:21,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 22:40:21,548 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 22:40:21,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 22:40:28,181 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 22:40:28,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 10:40:28 BoogieIcfgContainer [2024-11-02 22:40:28,216 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 22:40:28,217 INFO L158 Benchmark]: Toolchain (without parser) took 27369.31ms. Allocated memory was 280.0MB in the beginning and 736.1MB in the end (delta: 456.1MB). Free memory was 221.2MB in the beginning and 450.4MB in the end (delta: -229.2MB). Peak memory consumption was 449.6MB. Max. memory is 8.0GB. [2024-11-02 22:40:28,217 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 22:40:28,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.57ms. Allocated memory is still 280.0MB. Free memory was 220.8MB in the beginning and 203.3MB in the end (delta: 17.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-02 22:40:28,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.31ms. Allocated memory is still 280.0MB. Free memory was 203.3MB in the beginning and 200.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 22:40:28,218 INFO L158 Benchmark]: Boogie Preprocessor took 60.12ms. Allocated memory is still 280.0MB. Free memory was 200.6MB in the beginning and 197.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-02 22:40:28,218 INFO L158 Benchmark]: RCFGBuilder took 828.36ms. Allocated memory is still 280.0MB. Free memory was 197.5MB in the beginning and 236.5MB in the end (delta: -39.0MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB. [2024-11-02 22:40:28,218 INFO L158 Benchmark]: TraceAbstraction took 26021.45ms. Allocated memory was 280.0MB in the beginning and 736.1MB in the end (delta: 456.1MB). Free memory was 235.9MB in the beginning and 450.4MB in the end (delta: -214.4MB). Peak memory consumption was 463.9MB. Max. memory is 8.0GB. [2024-11-02 22:40:28,222 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 190.8MB. Free memory is still 138.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 404.57ms. Allocated memory is still 280.0MB. Free memory was 220.8MB in the beginning and 203.3MB in the end (delta: 17.4MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 47.31ms. Allocated memory is still 280.0MB. Free memory was 203.3MB in the beginning and 200.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.12ms. Allocated memory is still 280.0MB. Free memory was 200.6MB in the beginning and 197.5MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 828.36ms. Allocated memory is still 280.0MB. Free memory was 197.5MB in the beginning and 236.5MB in the end (delta: -39.0MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB. * TraceAbstraction took 26021.45ms. Allocated memory was 280.0MB in the beginning and 736.1MB in the end (delta: 456.1MB). Free memory was 235.9MB in the beginning and 450.4MB in the end (delta: -214.4MB). Peak memory consumption was 463.9MB. 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 - PositiveResult [Line: 618]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 125 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 19.3s, OverallIterations: 25, TraceHistogramMax: 22, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2974 SdHoareTripleChecker+Valid, 3.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2974 mSDsluCounter, 9009 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4443 mSDsCounter, 550 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4064 IncrementalHoareTripleChecker+Invalid, 4614 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 550 mSolverCounterUnsat, 4566 mSDtfsCounter, 4064 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11052 GetRequests, 10995 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10930occurred in iteration=21, InterpolantAutomatonStates: 102, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 25 MinimizatonAttempts, 7533 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 5542 NumberOfCodeBlocks, 5542 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 11034 ConstructedInterpolants, 0 QuantifiedInterpolants, 16535 SizeOfPredicates, 4 NumberOfNonLiveVariables, 6671 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 50 InterpolantComputations, 44 PerfectInterpolantSequences, 45276/45380 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((4448 == s__state) && (61087 == ag_Y)) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (0 == s__hit)) && (3 != blastFlag)) || ((((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (4384 == s__state)) && (5 != blastFlag)) && (65535 == ag_X)) && (0 == s__hit)) && (4368 != s__s3__tmp__next_state___0)) && (3 != blastFlag))) || (((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (65535 == ag_X)) && (0 != s__hit)) && (3 == s__state)) && (4368 != s__s3__tmp__next_state___0)) && (3 != blastFlag))) || (((((((4432 == s__state) && (61087 == ag_Y)) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (0 == s__hit)) && (3 != blastFlag))) || (((2 == blastFlag) && (3 == s__state)) && (4368 != s__s3__tmp__next_state___0))) || ((((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (4400 == s__state)) && (65535 == ag_X)) && (0 == s__hit)) && (4368 != s__s3__tmp__next_state___0)) && (3 != blastFlag))) || (((2 == blastFlag) && (4352 == s__state)) && (3 == s__s3__tmp__next_state___0))) || (((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (0 == s__hit)) && (4416 == s__state))) || ((4384 == s__state) && (1 == blastFlag))) || (((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (0 == s__hit)) && (4464 == s__state)) && (3 != blastFlag))) || ((0 == blastFlag) && (12292 == s__state))) || ((4560 == s__state) && (2 == blastFlag))) || (((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (4528 == s__state)) && (0 == s__hit)) && (3 != blastFlag))) || (((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (4512 == s__state)) && (0 == s__hit)) && (3 != blastFlag))) || (((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (0 == s__hit)) && (4480 == s__state)) && (3 != blastFlag))) || (((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (0 == s__hit)) && (4496 == s__state)) && (3 != blastFlag))) || ((4512 == s__state) && (2 == blastFlag))) || ((4528 == s__state) && (2 == blastFlag))) || ((((((((((((((61087 == ag_Y) && (256 == s__s3__tmp__new_cipher__algorithms)) && (5 != blastFlag)) && (65535 == ag_X)) && (16384 != s__state)) && (4560 == s__s3__tmp__next_state___0)) && (4368 != s__state)) && (4099 != s__state)) && (4096 != s__state)) && (0 == s__hit)) && (12292 != s__state)) && (20480 != s__state)) && (4369 != s__state)) && (3 != blastFlag))) || ((4368 == s__state) && (0 == blastFlag))) || ((2 == blastFlag) && (0 == s__hit))) RESULT: Ultimate proved your program to be correct! [2024-11-02 22:40:28,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...