/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-33.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 08:22:24,809 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 08:22:24,883 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 08:22:24,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 08:22:24,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 08:22:24,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 08:22:24,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 08:22:24,916 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 08:22:24,917 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 08:22:24,917 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 08:22:24,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 08:22:24,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 08:22:24,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 08:22:24,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 08:22:24,920 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 08:22:24,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 08:22:24,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 08:22:24,921 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 08:22:24,922 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 08:22:24,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 08:22:24,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 08:22:24,926 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 08:22:24,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 08:22:24,927 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 08:22:24,927 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 08:22:24,927 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 08:22:24,927 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 08:22:24,928 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 08:22:24,928 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 08:22:24,928 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 08:22:24,928 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 08:22:24,929 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 08:22:24,929 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 08:22:24,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 08:22:24,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:22:24,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 08:22:24,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 08:22:24,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 08:22:24,933 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 08:22:24,933 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 08:22:24,933 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 08:22:24,934 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 08:22:24,934 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 08:22:24,934 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 08:22:24,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 08:22:25,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 08:22:25,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 08:22:25,184 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 08:22:25,185 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 08:22:25,185 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 08:22:25,186 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-33.i [2024-11-06 08:22:26,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 08:22:26,865 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 08:22:26,866 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-33.i [2024-11-06 08:22:26,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29df30fd/4da03cc82ee84a5f980890686d38245d/FLAGf8a140265 [2024-11-06 08:22:27,206 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c29df30fd/4da03cc82ee84a5f980890686d38245d [2024-11-06 08:22:27,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 08:22:27,209 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 08:22:27,210 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 08:22:27,210 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 08:22:27,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 08:22:27,216 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d88be04 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27, skipping insertion in model container [2024-11-06 08:22:27,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,260 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 08:22:27,416 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-33.i[916,929] [2024-11-06 08:22:27,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:22:27,624 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 08:22:27,637 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-33.i[916,929] [2024-11-06 08:22:27,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 08:22:27,743 INFO L204 MainTranslator]: Completed translation [2024-11-06 08:22:27,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27 WrapperNode [2024-11-06 08:22:27,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 08:22:27,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 08:22:27,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 08:22:27,748 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 08:22:27,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,770 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,812 INFO L138 Inliner]: procedures = 27, calls = 64, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 368 [2024-11-06 08:22:27,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 08:22:27,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 08:22:27,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 08:22:27,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 08:22:27,826 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,859 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 08:22:27,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,860 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,901 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,933 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 08:22:27,938 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 08:22:27,938 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 08:22:27,939 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 08:22:27,940 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (1/1) ... [2024-11-06 08:22:27,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 08:22:27,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 08:22:27,974 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 08:22:27,978 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 08:22:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 08:22:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 08:22:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 08:22:28,008 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 08:22:28,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 08:22:28,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 08:22:28,140 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 08:22:28,142 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 08:23:07,089 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-11-06 08:23:07,090 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 08:23:07,109 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 08:23:07,110 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 08:23:07,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:23:07 BoogieIcfgContainer [2024-11-06 08:23:07,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 08:23:07,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 08:23:07,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 08:23:07,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 08:23:07,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:22:27" (1/3) ... [2024-11-06 08:23:07,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fba2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:23:07, skipping insertion in model container [2024-11-06 08:23:07,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:22:27" (2/3) ... [2024-11-06 08:23:07,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fba2d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:23:07, skipping insertion in model container [2024-11-06 08:23:07,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:23:07" (3/3) ... [2024-11-06 08:23:07,121 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-33.i [2024-11-06 08:23:07,135 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 08:23:07,135 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 08:23:07,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 08:23:07,197 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;@38b20e4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 08:23:07,197 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 08:23:07,202 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 96 states have internal predecessors, (139), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-06 08:23:07,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-06 08:23:07,221 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:23:07,222 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:07,222 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:23:07,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:23:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 269481164, now seen corresponding path program 1 times [2024-11-06 08:23:07,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:23:07,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1734586375] [2024-11-06 08:23:07,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:23:07,242 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 08:23:07,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:23:07,247 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 08:23:07,249 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 08:23:09,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:23:09,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 08:23:09,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:23:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 1816 proven. 0 refuted. 0 times theorem prover too weak. 3284 trivial. 0 not checked. [2024-11-06 08:23:09,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:23:09,913 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:23:09,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1734586375] [2024-11-06 08:23:09,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1734586375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:23:09,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:23:09,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 08:23:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929597692] [2024-11-06 08:23:09,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:23:09,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 08:23:09,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:23:09,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 08:23:09,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 08:23:09,951 INFO L87 Difference]: Start difference. First operand has 149 states, 95 states have (on average 1.4631578947368422) internal successors, (139), 96 states have internal predecessors, (139), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) 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, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-06 08:23:10,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 08:23:10,004 INFO L93 Difference]: Finished difference Result 291 states and 527 transitions. [2024-11-06 08:23:10,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 08:23:10,007 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, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 327 [2024-11-06 08:23:10,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 08:23:10,014 INFO L225 Difference]: With dead ends: 291 [2024-11-06 08:23:10,015 INFO L226 Difference]: Without dead ends: 145 [2024-11-06 08:23:10,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 326 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 08:23:10,024 INFO L432 NwaCegarLoop]: 233 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, 233 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 08:23:10,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 08:23:10,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2024-11-06 08:23:10,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2024-11-06 08:23:10,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 92 states have (on average 1.423913043478261) internal successors, (131), 92 states have internal predecessors, (131), 51 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 51 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-06 08:23:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 233 transitions. [2024-11-06 08:23:10,078 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 233 transitions. Word has length 327 [2024-11-06 08:23:10,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 08:23:10,079 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 233 transitions. [2024-11-06 08:23:10,079 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, (51), 2 states have call predecessors, (51), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-06 08:23:10,079 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 233 transitions. [2024-11-06 08:23:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-06 08:23:10,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 08:23:10,088 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 51, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:10,157 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 08:23:10,288 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 08:23:10,289 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 08:23:10,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 08:23:10,290 INFO L85 PathProgramCache]: Analyzing trace with hash -173267910, now seen corresponding path program 1 times [2024-11-06 08:23:10,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 08:23:10,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [462397133] [2024-11-06 08:23:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 08:23:10,292 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 08:23:10,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-06 08:23:10,296 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 08:23:10,297 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 08:23:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 08:23:12,757 INFO L255 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 08:23:12,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 08:23:39,249 INFO L134 CoverageAnalysis]: Checked inductivity of 5100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5100 trivial. 0 not checked. [2024-11-06 08:23:39,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 08:23:39,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 08:23:39,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [462397133] [2024-11-06 08:23:39,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [462397133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 08:23:39,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 08:23:39,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-06 08:23:39,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280700189] [2024-11-06 08:23:39,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 08:23:39,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 08:23:39,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 08:23:39,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 08:23:39,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 08:23:39,258 INFO L87 Difference]: Start difference. First operand 145 states and 233 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (51), 1 states have call predecessors, (51), 1 states have return successors, (51), 1 states have call predecessors, (51), 1 states have call successors, (51) [2024-11-06 08:23:53,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:23:55,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:00,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 08:24:05,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []