/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/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-02 21:28:55,845 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 21:28:55,930 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 21:28:55,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 21:28:55,937 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 21:28:55,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 21:28:55,966 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 21:28:55,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 21:28:55,967 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-02 21:28:55,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-02 21:28:55,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 21:28:55,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 21:28:55,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-02 21:28:55,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-02 21:28:55,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-02 21:28:55,970 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 21:28:55,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 21:28:55,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 21:28:55,971 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 21:28:55,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 21:28:55,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 21:28:55,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 21:28:55,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 21:28:55,976 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-02 21:28:55,976 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-02 21:28:55,977 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 21:28:55,977 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-02 21:28:55,977 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 21:28:55,977 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 21:28:55,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 21:28:55,978 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 21:28:55,978 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-02 21:28:55,978 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 21:28:55,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 21:28:55,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:28:55,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 21:28:55,983 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 21:28:55,983 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 21:28:55,983 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-02 21:28:55,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-02 21:28:55,983 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 21:28:55,984 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-02 21:28:55,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-02 21:28:55,984 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 21:28:55,985 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:28:56,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 21:28:56,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 21:28:56,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 21:28:56,242 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 21:28:56,242 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 21:28:56,244 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i [2024-11-02 21:28:57,649 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 21:28:57,839 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 21:28:57,839 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i [2024-11-02 21:28:57,848 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4e35f950/7659b1fc46b443f4bfebe9dfa2208d9e/FLAGc8f0ab204 [2024-11-02 21:28:57,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4e35f950/7659b1fc46b443f4bfebe9dfa2208d9e [2024-11-02 21:28:57,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 21:28:57,869 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-02 21:28:57,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 21:28:57,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 21:28:57,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 21:28:57,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:28:57" (1/1) ... [2024-11-02 21:28:57,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@142986d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:57, skipping insertion in model container [2024-11-02 21:28:57,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:28:57" (1/1) ... [2024-11-02 21:28:57,901 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 21:28:58,064 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i[915,928] [2024-11-02 21:28:58,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:28:58,108 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 21:28:58,119 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-8.i[915,928] [2024-11-02 21:28:58,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 21:28:58,157 INFO L204 MainTranslator]: Completed translation [2024-11-02 21:28:58,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58 WrapperNode [2024-11-02 21:28:58,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 21:28:58,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 21:28:58,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 21:28:58,159 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 21:28:58,165 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,193 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 111 [2024-11-02 21:28:58,193 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 21:28:58,194 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 21:28:58,194 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 21:28:58,194 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 21:28:58,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,220 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 21:28:58,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,235 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,243 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 21:28:58,244 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 21:28:58,244 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 21:28:58,244 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 21:28:58,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (1/1) ... [2024-11-02 21:28:58,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-02 21:28:58,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:28:58,280 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 21:28:58,283 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 21:28:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 21:28:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-02 21:28:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 21:28:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 21:28:58,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 21:28:58,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 21:28:58,373 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 21:28:58,374 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 21:28:58,595 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-02 21:28:58,595 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 21:28:58,617 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 21:28:58,617 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-02 21:28:58,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:28:58 BoogieIcfgContainer [2024-11-02 21:28:58,618 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 21:28:58,620 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 21:28:58,620 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 21:28:58,623 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 21:28:58,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:28:57" (1/3) ... [2024-11-02 21:28:58,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d544a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:28:58, skipping insertion in model container [2024-11-02 21:28:58,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:28:58" (2/3) ... [2024-11-02 21:28:58,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d544a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:28:58, skipping insertion in model container [2024-11-02 21:28:58,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:28:58" (3/3) ... [2024-11-02 21:28:58,626 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-8.i [2024-11-02 21:28:58,640 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 21:28:58,640 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 21:28:58,696 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 21:28:58,703 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;@1143d5af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 21:28:58,704 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 21:28:58,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 21:28:58,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-02 21:28:58,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:28:58,745 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:58,745 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:28:58,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:28:58,750 INFO L85 PathProgramCache]: Analyzing trace with hash -892636444, now seen corresponding path program 1 times [2024-11-02 21:28:58,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:28:58,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307510619] [2024-11-02 21:28:58,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:28:58,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:28:58,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:28:58,763 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 21:28:58,766 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 21:28:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:28:58,969 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-02 21:28:58,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:28:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-02 21:28:59,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:28:59,167 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-02 21:28:59,171 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:28:59,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307510619] [2024-11-02 21:28:59,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1307510619] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:28:59,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:28:59,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-02 21:28:59,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362691339] [2024-11-02 21:28:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:28:59,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-02 21:28:59,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:28:59,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-02 21:28:59,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:28:59,204 INFO L87 Difference]: Start difference. First operand has 51 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 21:28:59,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:28:59,233 INFO L93 Difference]: Finished difference Result 95 states and 162 transitions. [2024-11-02 21:28:59,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-02 21:28:59,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 112 [2024-11-02 21:28:59,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:28:59,244 INFO L225 Difference]: With dead ends: 95 [2024-11-02 21:28:59,244 INFO L226 Difference]: Without dead ends: 47 [2024-11-02 21:28:59,247 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-02 21:28:59,253 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 21:28:59,254 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 21:28:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-02 21:28:59,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-02 21:28:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 21:28:59,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-02 21:28:59,294 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 112 [2024-11-02 21:28:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:28:59,294 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-02 21:28:59,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-02 21:28:59,295 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-02 21:28:59,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-02 21:28:59,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:28:59,298 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:28:59,318 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 21:28:59,502 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 21:28:59,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:28:59,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:28:59,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1266591324, now seen corresponding path program 1 times [2024-11-02 21:28:59,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:28:59,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1773213628] [2024-11-02 21:28:59,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:28:59,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:28:59,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:28:59,507 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 21:28:59,510 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 21:28:59,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:28:59,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-02 21:28:59,625 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:28:59,849 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-02 21:28:59,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:29:06,251 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-02 21:29:06,251 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:29:06,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1773213628] [2024-11-02 21:29:06,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1773213628] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:29:06,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:29:06,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-02 21:29:06,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806367263] [2024-11-02 21:29:06,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:29:06,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 21:29:06,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:29:06,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 21:29:06,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-11-02 21:29:06,257 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:08,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:29:08,351 INFO L93 Difference]: Finished difference Result 112 states and 161 transitions. [2024-11-02 21:29:08,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-02 21:29:08,352 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-02 21:29:08,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:29:08,355 INFO L225 Difference]: With dead ends: 112 [2024-11-02 21:29:08,355 INFO L226 Difference]: Without dead ends: 110 [2024-11-02 21:29:08,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-02 21:29:08,356 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 173 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-02 21:29:08,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 156 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-02 21:29:08,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-02 21:29:08,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 75. [2024-11-02 21:29:08,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 44 states have (on average 1.1590909090909092) internal successors, (51), 45 states have internal predecessors, (51), 28 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (28), 27 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-02 21:29:08,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 107 transitions. [2024-11-02 21:29:08,389 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 107 transitions. Word has length 112 [2024-11-02 21:29:08,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:29:08,390 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 107 transitions. [2024-11-02 21:29:08,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:08,390 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2024-11-02 21:29:08,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-02 21:29:08,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:29:08,392 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:08,406 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 21:29:08,593 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 21:29:08,593 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:29:08,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:29:08,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1264744282, now seen corresponding path program 1 times [2024-11-02 21:29:08,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:29:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [850261062] [2024-11-02 21:29:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:29:08,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:29:08,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:29:08,597 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 21:29:08,598 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 21:29:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:29:08,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 21:29:08,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:29:08,695 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-02 21:29:08,696 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:29:08,774 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-02 21:29:08,774 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:29:08,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [850261062] [2024-11-02 21:29:08,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [850261062] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-02 21:29:08,775 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-02 21:29:08,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-02 21:29:08,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994069121] [2024-11-02 21:29:08,775 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-02 21:29:08,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-02 21:29:08,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:29:08,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-02 21:29:08,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-02 21:29:08,777 INFO L87 Difference]: Start difference. First operand 75 states and 107 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:09,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:29:09,075 INFO L93 Difference]: Finished difference Result 180 states and 259 transitions. [2024-11-02 21:29:09,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-02 21:29:09,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-02 21:29:09,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:29:09,083 INFO L225 Difference]: With dead ends: 180 [2024-11-02 21:29:09,083 INFO L226 Difference]: Without dead ends: 108 [2024-11-02 21:29:09,084 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 218 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-02 21:29:09,085 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 21:29:09,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 196 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 21:29:09,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-02 21:29:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 107. [2024-11-02 21:29:09,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 56 states have (on average 1.0892857142857142) internal successors, (61), 58 states have internal predecessors, (61), 46 states have call successors, (46), 4 states have call predecessors, (46), 4 states have return successors, (46), 44 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-02 21:29:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2024-11-02 21:29:09,132 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 112 [2024-11-02 21:29:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:29:09,133 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2024-11-02 21:29:09,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:09,133 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2024-11-02 21:29:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-02 21:29:09,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:29:09,135 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:09,155 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 21:29:09,336 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 21:29:09,336 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:29:09,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:29:09,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1209333022, now seen corresponding path program 1 times [2024-11-02 21:29:09,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:29:09,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48133465] [2024-11-02 21:29:09,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:29:09,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:29:09,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:29:09,340 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 21:29:09,341 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 21:29:09,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:29:09,415 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 21:29:09,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:29:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-02 21:29:11,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:29:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-02 21:29:14,959 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:29:14,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48133465] [2024-11-02 21:29:14,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [48133465] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:29:14,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:29:14,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-02 21:29:14,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718530168] [2024-11-02 21:29:14,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:29:14,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 21:29:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:29:14,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 21:29:14,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-02 21:29:14,964 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:15,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:29:15,597 INFO L93 Difference]: Finished difference Result 115 states and 159 transitions. [2024-11-02 21:29:15,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 21:29:15,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-02 21:29:15,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:29:15,600 INFO L225 Difference]: With dead ends: 115 [2024-11-02 21:29:15,600 INFO L226 Difference]: Without dead ends: 113 [2024-11-02 21:29:15,601 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-02 21:29:15,602 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 48 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-02 21:29:15,602 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 244 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-02 21:29:15,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-02 21:29:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 54. [2024-11-02 21:29:15,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-02 21:29:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2024-11-02 21:29:15,630 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 112 [2024-11-02 21:29:15,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:29:15,631 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2024-11-02 21:29:15,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:15,631 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2024-11-02 21:29:15,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-02 21:29:15,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 21:29:15,633 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:29:15,655 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 21:29:15,833 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 21:29:15,834 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 21:29:15,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 21:29:15,835 INFO L85 PathProgramCache]: Analyzing trace with hash -1207485980, now seen corresponding path program 1 times [2024-11-02 21:29:15,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-02 21:29:15,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084524368] [2024-11-02 21:29:15,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 21:29:15,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 21:29:15,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-02 21:29:15,836 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 21:29:15,838 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 21:29:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 21:29:15,908 INFO L255 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-02 21:29:15,912 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 21:29:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 27 proven. 24 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-02 21:29:16,861 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 21:29:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-02 21:29:19,309 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-02 21:29:19,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084524368] [2024-11-02 21:29:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2084524368] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-02 21:29:19,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 21:29:19,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 15 [2024-11-02 21:29:19,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932947692] [2024-11-02 21:29:19,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 21:29:19,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-02 21:29:19,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-02 21:29:19,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-02 21:29:19,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2024-11-02 21:29:19,312 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:19,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 21:29:19,743 INFO L93 Difference]: Finished difference Result 91 states and 124 transitions. [2024-11-02 21:29:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-02 21:29:19,744 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 112 [2024-11-02 21:29:19,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 21:29:19,745 INFO L225 Difference]: With dead ends: 91 [2024-11-02 21:29:19,745 INFO L226 Difference]: Without dead ends: 0 [2024-11-02 21:29:19,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2024-11-02 21:29:19,747 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 71 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-02 21:29:19,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 421 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-02 21:29:19,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-02 21:29:19,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-02 21:29:19,748 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 21:29:19,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-02 21:29:19,748 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2024-11-02 21:29:19,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 21:29:19,749 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-02 21:29:19,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.125) internal successors, (25), 8 states have internal predecessors, (25), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-02 21:29:19,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-02 21:29:19,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-02 21:29:19,752 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-02 21:29:19,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-02 21:29:19,953 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 21:29:19,956 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-02 21:29:19,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-02 21:29:26,855 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-02 21:29:26,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.11 09:29:26 BoogieIcfgContainer [2024-11-02 21:29:26,874 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-02 21:29:26,874 INFO L158 Benchmark]: Toolchain (without parser) took 29005.39ms. Allocated memory was 187.7MB in the beginning and 760.2MB in the end (delta: 572.5MB). Free memory was 138.9MB in the beginning and 477.7MB in the end (delta: -338.8MB). Peak memory consumption was 439.9MB. Max. memory is 8.0GB. [2024-11-02 21:29:26,875 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory was 140.1MB in the beginning and 140.0MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-02 21:29:26,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.30ms. Allocated memory is still 187.7MB. Free memory was 138.6MB in the beginning and 124.2MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2024-11-02 21:29:26,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.87ms. Allocated memory is still 187.7MB. Free memory was 124.2MB in the beginning and 122.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-11-02 21:29:26,875 INFO L158 Benchmark]: Boogie Preprocessor took 48.82ms. Allocated memory is still 187.7MB. Free memory was 122.1MB in the beginning and 119.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2024-11-02 21:29:26,876 INFO L158 Benchmark]: RCFGBuilder took 373.85ms. Allocated memory is still 187.7MB. Free memory was 119.7MB in the beginning and 104.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2024-11-02 21:29:26,876 INFO L158 Benchmark]: TraceAbstraction took 28253.73ms. Allocated memory was 187.7MB in the beginning and 760.2MB in the end (delta: 572.5MB). Free memory was 103.6MB in the beginning and 477.7MB in the end (delta: -374.1MB). Peak memory consumption was 404.2MB. Max. memory is 8.0GB. [2024-11-02 21:29:26,877 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 187.7MB. Free memory was 140.1MB in the beginning and 140.0MB in the end (delta: 71.7kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 287.30ms. Allocated memory is still 187.7MB. Free memory was 138.6MB in the beginning and 124.2MB in the end (delta: 14.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.87ms. Allocated memory is still 187.7MB. Free memory was 124.2MB in the beginning and 122.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.82ms. Allocated memory is still 187.7MB. Free memory was 122.1MB in the beginning and 119.7MB in the end (delta: 2.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 373.85ms. Allocated memory is still 187.7MB. Free memory was 119.7MB in the beginning and 104.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 28253.73ms. Allocated memory was 187.7MB in the beginning and 760.2MB in the end (delta: 572.5MB). Free memory was 103.6MB in the beginning and 477.7MB in the end (delta: -374.1MB). Peak memory consumption was 404.2MB. 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: 19]: 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 2 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.3s, OverallIterations: 5, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 412 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 412 mSDsluCounter, 1085 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 695 mSDsCounter, 198 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 654 IncrementalHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 198 mSolverCounterUnsat, 390 mSDtfsCounter, 654 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1128 GetRequests, 1071 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 95 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 560 NumberOfCodeBlocks, 560 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1110 ConstructedInterpolants, 2 QuantifiedInterpolants, 2029 SizeOfPredicates, 43 NumberOfNonLiveVariables, 925 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 10 InterpolantComputations, 6 PerfectInterpolantSequences, 6014/6120 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: 104]: Loop Invariant Derived loop invariant: (((((((var_1_14 == var_1_17) && (var_1_19 == var_1_18)) && (var_1_19 == var_1_20)) || !(var_1_18 >= (var_1_19 * 8))) && !(var_1_18 >= (var_1_8 * 8))) && !(var_1_19 > var_1_8)) || (((((var_1_19 == var_1_8) && (var_1_14 == var_1_17)) && (((var_1_16 + -((var_1_14 + var_1_15) % 4294967296)) % 4294967296) == var_1_12)) && (var_1_19 == var_1_18)) && (var_1_19 == var_1_20))) - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Requires: !(var_1_19 > var_1_8) Ensures: (!(var_1_19 > var_1_8) && ((((((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_4 == \old(var_1_4))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (var_1_14 == \old(var_1_14))) && (var_1_15 == \old(var_1_15))) && (var_1_16 == \old(var_1_16))) && (var_1_17 == \old(var_1_17))) && (var_1_18 == \old(var_1_18))) && (var_1_19 == \old(var_1_19))) && (var_1_20 == \old(var_1_20)))) RESULT: Ultimate proved your program to be correct! [2024-11-02 21:29:26,913 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...