/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-57.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:08:33,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:08:33,747 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-06 08:08:33,752 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:08:33,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:08:33,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:08:33,777 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:08:33,777 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:08:33,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:08:33,778 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:08:33,778 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:08:33,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:08:33,780 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:08:33,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:08:33,784 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:08:33,784 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:08:33,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:08:33,784 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:08:33,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:08:33,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:08:33,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:08:33,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:08:33,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:08:33,786 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:08:33,786 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:08:33,786 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:08:33,787 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:08:33,787 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:08:33,787 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:08:33,788 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:08:33,788 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:08:33,788 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:08:33,788 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:08:33,788 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:08:33,788 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:08:33,789 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:08:33,789 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:08:33,789 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:08:33,789 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:08:33,789 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:08:33,789 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:08:33,791 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:08:33,791 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:08:33,791 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:08:33,791 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:08:33,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:08:34,015 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:08:34,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:08:34,018 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:08:34,018 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:08:34,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-57.i [2024-11-06 08:08:35,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:08:35,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:08:35,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-57.i [2024-11-06 08:08:35,626 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c44551673/4e104ddd6ffd41a1834062c2bbf8b44b/FLAGee31c559b [2024-11-06 08:08:35,644 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c44551673/4e104ddd6ffd41a1834062c2bbf8b44b [2024-11-06 08:08:35,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:08:35,648 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:08:35,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:08:35,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:08:35,656 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:08:35,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:35" (1/1) ... [2024-11-06 08:08:35,657 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2412c851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:35, skipping insertion in model container [2024-11-06 08:08:35,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:35" (1/1) ... [2024-11-06 08:08:35,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:08:35,857 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_operatoramount_amount100_file-57.i[916,929] [2024-11-06 08:08:35,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:08:35,950 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:08:35,960 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_operatoramount_amount100_file-57.i[916,929] [2024-11-06 08:08:35,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:08:36,019 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:08:36,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36 WrapperNode [2024-11-06 08:08:36,021 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:08:36,022 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:08:36,023 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:08:36,023 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:08:36,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,076 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 229 [2024-11-06 08:08:36,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:08:36,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:08:36,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:08:36,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:08:36,086 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,094 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,111 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]. [2024-11-06 08:08:36,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,127 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,131 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,133 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:08:36,139 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:08:36,139 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:08:36,139 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:08:36,143 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (1/1) ... [2024-11-06 08:08:36,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:08:36,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:08:36,180 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) [2024-11-06 08:08:36,187 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 [2024-11-06 08:08:36,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:08:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:08:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:08:36,208 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:08:36,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:08:36,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:08:36,318 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:08:36,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:08:49,980 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-06 08:08:49,981 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:08:49,999 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:08:49,999 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:08:49,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:08:49 BoogieIcfgContainer [2024-11-06 08:08:49,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:08:50,004 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:08:50,004 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:08:50,007 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:08:50,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:08:35" (1/3) ... [2024-11-06 08:08:50,008 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d956fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:08:50, skipping insertion in model container [2024-11-06 08:08:50,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:36" (2/3) ... [2024-11-06 08:08:50,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d956fd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:08:50, skipping insertion in model container [2024-11-06 08:08:50,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:08:49" (3/3) ... [2024-11-06 08:08:50,011 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-57.i [2024-11-06 08:08:50,025 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:08:50,025 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:08:50,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:08:50,093 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;@7b17a491, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:08:50,094 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:08:50,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 62 states have internal predecessors, (87), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-06 08:08:50,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-06 08:08:50,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:08:50,113 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:08:50,114 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:08:50,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:08:50,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1889678898, now seen corresponding path program 1 times [2024-11-06 08:08:50,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:08:50,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [910384855] [2024-11-06 08:08:50,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:08:50,136 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 08:08:50,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:08:50,140 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:08:50,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-06 08:08:50,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:08:50,752 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:08:50,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:08:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 854 proven. 0 refuted. 0 times theorem prover too weak. 1666 trivial. 0 not checked. [2024-11-06 08:08:50,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:08:50,827 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:08:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [910384855] [2024-11-06 08:08:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [910384855] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:08:50,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:08:50,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:08:50,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353422340] [2024-11-06 08:08:50,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:08:50,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:08:50,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:08:50,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:08:50,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:08:50,851 INFO L87 Difference]: Start difference. First operand has 100 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 62 states have internal predecessors, (87), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-06 08:08:50,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:08:50,890 INFO L93 Difference]: Finished difference Result 193 states and 348 transitions. [2024-11-06 08:08:50,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:08:50,893 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 224 [2024-11-06 08:08:50,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:08:50,903 INFO L225 Difference]: With dead ends: 193 [2024-11-06 08:08:50,903 INFO L226 Difference]: Without dead ends: 96 [2024-11-06 08:08:50,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:08:50,912 INFO L432 NwaCegarLoop]: 152 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, 152 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 [2024-11-06 08:08:50,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:08:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-06 08:08:50,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-06 08:08:50,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 58 states have (on average 1.3793103448275863) internal successors, (80), 58 states have internal predecessors, (80), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-06 08:08:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 152 transitions. [2024-11-06 08:08:50,962 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 152 transitions. Word has length 224 [2024-11-06 08:08:50,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:08:50,963 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 152 transitions. [2024-11-06 08:08:50,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-06 08:08:50,967 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 152 transitions. [2024-11-06 08:08:50,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2024-11-06 08:08:50,971 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:08:50,971 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:08:50,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-06 08:08:51,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 08:08:51,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:08:51,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:08:51,173 INFO L85 PathProgramCache]: Analyzing trace with hash -406339910, now seen corresponding path program 1 times [2024-11-06 08:08:51,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:08:51,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [892405357] [2024-11-06 08:08:51,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:08:51,176 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 08:08:51,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:08:51,179 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:08:51,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-06 08:08:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:08:51,952 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 08:08:51,966 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:08:54,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 915 proven. 81 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2024-11-06 08:08:54,685 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:08:57,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 24 proven. 81 refuted. 0 times theorem prover too weak. 2415 trivial. 0 not checked. [2024-11-06 08:08:57,139 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:08:57,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [892405357] [2024-11-06 08:08:57,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [892405357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 08:08:57,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 08:08:57,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-06 08:08:57,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199002204] [2024-11-06 08:08:57,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 08:08:57,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 08:08:57,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:08:57,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 08:08:57,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 08:08:57,146 INFO L87 Difference]: Start difference. First operand 96 states and 152 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2024-11-06 08:09:03,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:07,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:11,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:09:12,194 INFO L93 Difference]: Finished difference Result 211 states and 330 transitions. [2024-11-06 08:09:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-06 08:09:12,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 224 [2024-11-06 08:09:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:09:12,204 INFO L225 Difference]: With dead ends: 211 [2024-11-06 08:09:12,204 INFO L226 Difference]: Without dead ends: 118 [2024-11-06 08:09:12,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 440 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-06 08:09:12,213 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 95 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 24 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2024-11-06 08:09:12,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 289 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 246 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2024-11-06 08:09:12,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-06 08:09:12,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 113. [2024-11-06 08:09:12,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 66 states have (on average 1.303030303030303) internal successors, (86), 67 states have internal predecessors, (86), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 43 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-06 08:09:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 174 transitions. [2024-11-06 08:09:12,247 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 174 transitions. Word has length 224 [2024-11-06 08:09:12,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:09:12,247 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 174 transitions. [2024-11-06 08:09:12,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 2 states have call successors, (63), 2 states have call predecessors, (63), 4 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2024-11-06 08:09:12,248 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 174 transitions. [2024-11-06 08:09:12,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-06 08:09:12,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:09:12,258 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:09:12,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-06 08:09:12,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 08:09:12,464 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:09:12,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:09:12,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1426628798, now seen corresponding path program 1 times [2024-11-06 08:09:12,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:09:12,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1333941865] [2024-11-06 08:09:12,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:09:12,469 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 08:09:12,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:09:12,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:09:12,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-06 08:09:12,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:09:13,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 08:09:13,025 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:09:18,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1293 proven. 54 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2024-11-06 08:09:18,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:09:20,314 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:09:20,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1333941865] [2024-11-06 08:09:20,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1333941865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:09:20,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877720214] [2024-11-06 08:09:20,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:09:20,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:09:20,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:09:20,317 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) [2024-11-06 08:09:20,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 08:09:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:09:20,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-06 08:09:20,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:09:26,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1293 proven. 54 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2024-11-06 08:09:26,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:09:27,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1877720214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:09:27,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 08:09:27,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2024-11-06 08:09:27,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976300881] [2024-11-06 08:09:27,410 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 08:09:27,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 08:09:27,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:09:27,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 08:09:27,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-06 08:09:27,412 INFO L87 Difference]: Start difference. First operand 113 states and 174 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-06 08:09:35,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:39,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:43,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:47,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:51,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:55,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:09:59,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:10:03,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:10:07,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:10:07,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:10:07,599 INFO L93 Difference]: Finished difference Result 303 states and 461 transitions. [2024-11-06 08:10:07,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-06 08:10:07,660 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 225 [2024-11-06 08:10:07,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:10:07,662 INFO L225 Difference]: With dead ends: 303 [2024-11-06 08:10:07,662 INFO L226 Difference]: Without dead ends: 206 [2024-11-06 08:10:07,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=87, Invalid=153, Unknown=0, NotChecked=0, Total=240 [2024-11-06 08:10:07,664 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 98 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 119 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 39.5s IncrementalHoareTripleChecker+Time [2024-11-06 08:10:07,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 645 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 225 Invalid, 9 Unknown, 0 Unchecked, 39.5s Time] [2024-11-06 08:10:07,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-06 08:10:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 178. [2024-11-06 08:10:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 100 states have (on average 1.25) internal successors, (125), 100 states have internal predecessors, (125), 72 states have call successors, (72), 5 states have call predecessors, (72), 5 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-06 08:10:07,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 269 transitions. [2024-11-06 08:10:07,685 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 269 transitions. Word has length 225 [2024-11-06 08:10:07,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:10:07,685 INFO L471 AbstractCegarLoop]: Abstraction has 178 states and 269 transitions. [2024-11-06 08:10:07,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (36), 2 states have call predecessors, (36), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-06 08:10:07,686 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 269 transitions. [2024-11-06 08:10:07,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2024-11-06 08:10:07,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:10:07,688 INFO L215 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 08:10:07,707 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-06 08:10:07,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 08:10:08,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:10:08,093 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:10:08,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:10:08,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1847270144, now seen corresponding path program 1 times [2024-11-06 08:10:08,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:10:08,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170933377] [2024-11-06 08:10:08,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:10:08,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-06 08:10:08,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:10:08,095 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-06 08:10:08,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-06 08:10:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:10:08,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-06 08:10:08,764 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:10:18,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1526 proven. 108 refuted. 0 times theorem prover too weak. 886 trivial. 0 not checked. [2024-11-06 08:10:18,218 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 08:10:21,170 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:10:21,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170933377] [2024-11-06 08:10:21,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170933377] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 08:10:21,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [74647444] [2024-11-06 08:10:21,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:10:21,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 08:10:21,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:10:21,173 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) [2024-11-06 08:10:21,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process