/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_amount250_file-87.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:29:45,041 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:29:45,119 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 08:29:45,127 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:29:45,128 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:29:45,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:29:45,159 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:29:45,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:29:45,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:29:45,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:29:45,162 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:29:45,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:29:45,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:29:45,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:29:45,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:29:45,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:29:45,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:29:45,164 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:29:45,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:29:45,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:29:45,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:29:45,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:29:45,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:29:45,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:29:45,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:29:45,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:29:45,167 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:29:45,167 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:29:45,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:29:45,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:29:45,168 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:29:45,168 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:29:45,168 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:29:45,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:29:45,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:29:45,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:29:45,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:29:45,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:29:45,170 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:29:45,170 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:29:45,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:29:45,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:29:45,172 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:29:45,172 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:29:45,172 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:29:45,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:29:45,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:29:45,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:29:45,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:29:45,435 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:29:45,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-87.i [2024-11-06 08:29:46,827 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:29:47,065 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:29:47,066 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-87.i [2024-11-06 08:29:47,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761ef8af1/c8e025a7497c453bae1c63e0b2d4668f/FLAG95d2db2fe [2024-11-06 08:29:47,096 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761ef8af1/c8e025a7497c453bae1c63e0b2d4668f [2024-11-06 08:29:47,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:29:47,101 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:29:47,102 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:29:47,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:29:47,109 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:29:47,110 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,111 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4673c51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47, skipping insertion in model container [2024-11-06 08:29:47,111 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,158 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:29:47,322 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_amount250_file-87.i[916,929] [2024-11-06 08:29:47,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:29:47,507 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:29:47,526 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_amount250_file-87.i[916,929] [2024-11-06 08:29:47,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:29:47,666 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:29:47,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47 WrapperNode [2024-11-06 08:29:47,666 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:29:47,667 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:29:47,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:29:47,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:29:47,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,694 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,734 INFO L138 Inliner]: procedures = 27, calls = 75, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 379 [2024-11-06 08:29:47,735 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:29:47,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:29:47,735 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:29:47,735 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:29:47,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,774 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 08:29:47,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,774 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,791 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,806 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,812 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:29:47,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:29:47,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:29:47,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:29:47,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (1/1) ... [2024-11-06 08:29:47,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:29:47,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:29:47,859 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 08:29:47,863 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 08:29:47,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:29:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:29:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:29:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:29:47,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:29:47,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:29:48,032 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:29:48,035 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:30:25,023 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-06 08:30:25,024 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:30:25,045 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:30:25,045 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:30:25,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:25 BoogieIcfgContainer [2024-11-06 08:30:25,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:30:25,048 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:30:25,048 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:30:25,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:30:25,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:47" (1/3) ... [2024-11-06 08:30:25,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769ad84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:25, skipping insertion in model container [2024-11-06 08:30:25,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:47" (2/3) ... [2024-11-06 08:30:25,055 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769ad84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:30:25, skipping insertion in model container [2024-11-06 08:30:25,055 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:30:25" (3/3) ... [2024-11-06 08:30:25,057 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-87.i [2024-11-06 08:30:25,073 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:30:25,073 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:30:25,174 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:30:25,181 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;@50c8a119, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:30:25,181 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:30:25,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 164 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 100 states have internal predecessors, (143), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-06 08:30:25,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-06 08:30:25,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:30:25,213 INFO L215 NwaCegarLoop]: trace histogram [62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:25,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:30:25,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:30:25,221 INFO L85 PathProgramCache]: Analyzing trace with hash 384505729, now seen corresponding path program 1 times [2024-11-06 08:30:25,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:30:25,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352139494] [2024-11-06 08:30:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:30:25,236 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 08:30:25,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:30:25,238 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 08:30:25,239 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 08:30:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:30:27,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:30:27,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:30:27,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7564 backedges. 2474 proven. 0 refuted. 0 times theorem prover too weak. 5090 trivial. 0 not checked. [2024-11-06 08:30:27,747 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:30:27,749 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:30:27,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352139494] [2024-11-06 08:30:27,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352139494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:30:27,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:30:27,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:30:27,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733283010] [2024-11-06 08:30:27,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:30:27,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:30:27,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:30:27,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:30:27,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:30:27,789 INFO L87 Difference]: Start difference. First operand has 164 states, 99 states have (on average 1.4444444444444444) internal successors, (143), 100 states have internal predecessors, (143), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) Second operand has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-06 08:30:27,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:30:27,837 INFO L93 Difference]: Finished difference Result 321 states and 590 transitions. [2024-11-06 08:30:27,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:30:27,840 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 382 [2024-11-06 08:30:27,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:30:27,850 INFO L225 Difference]: With dead ends: 321 [2024-11-06 08:30:27,850 INFO L226 Difference]: Without dead ends: 160 [2024-11-06 08:30:27,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 381 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 08:30:27,863 INFO L432 NwaCegarLoop]: 260 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, 260 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 08:30:27,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:30:27,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-11-06 08:30:27,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2024-11-06 08:30:27,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 96 states have (on average 1.4166666666666667) internal successors, (136), 96 states have internal predecessors, (136), 62 states have call successors, (62), 1 states have call predecessors, (62), 1 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-06 08:30:27,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 260 transitions. [2024-11-06 08:30:27,926 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 260 transitions. Word has length 382 [2024-11-06 08:30:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:30:27,927 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 260 transitions. [2024-11-06 08:30:27,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-06 08:30:27,928 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 260 transitions. [2024-11-06 08:30:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-06 08:30:27,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:30:27,938 INFO L215 NwaCegarLoop]: trace histogram [62, 62, 62, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:28,026 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 (2)] Ended with exit code 0 [2024-11-06 08:30:28,142 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 08:30:28,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:30:28,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:30:28,146 INFO L85 PathProgramCache]: Analyzing trace with hash -175148079, now seen corresponding path program 1 times [2024-11-06 08:30:28,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:30:28,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1494711610] [2024-11-06 08:30:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:30:28,149 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 08:30:28,149 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:30:28,153 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 08:30:28,154 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 08:30:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:30:30,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-06 08:30:30,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:31:15,482 INFO L134 CoverageAnalysis]: Checked inductivity of 7564 backedges. 2819 proven. 279 refuted. 0 times theorem prover too weak. 4466 trivial. 0 not checked. [2024-11-06 08:31:15,483 INFO L311 TraceCheckSpWp]: Computing backward predicates...