/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-86.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:38:20,888 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:38:20,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-03 12:38:20,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:38:20,944 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:38:20,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:38:20,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:38:20,970 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:38:20,970 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:38:20,971 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:38:20,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:38:20,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:38:20,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:38:20,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:38:20,972 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:38:20,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:38:20,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:38:20,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:38:20,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:38:20,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:38:20,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:38:20,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:38:20,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:38:20,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:38:20,978 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:38:20,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:38:20,978 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:38:20,979 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:38:20,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:38:20,979 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:38:20,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:38:20,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:38:20,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:38:20,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:38:20,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:38:20,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:38:20,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:38:20,983 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:38:21,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:38:21,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:38:21,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:38:21,199 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:38:21,199 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:38:21,200 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-86.i [2024-11-03 12:38:22,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:38:22,962 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:38:22,963 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-86.i [2024-11-03 12:38:22,973 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc477f3e4/50da520d0e534a3ea1a0289d67938b26/FLAG634e42d27 [2024-11-03 12:38:23,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc477f3e4/50da520d0e534a3ea1a0289d67938b26 [2024-11-03 12:38:23,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:38:23,368 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:38:23,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:38:23,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:38:23,374 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:38:23,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a3d71d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23, skipping insertion in model container [2024-11-03 12:38:23,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,407 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:38:23,568 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-86.i[916,929] [2024-11-03 12:38:23,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:38:23,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:38:23,670 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-86.i[916,929] [2024-11-03 12:38:23,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:38:23,725 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:38:23,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23 WrapperNode [2024-11-03 12:38:23,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:38:23,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:38:23,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:38:23,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:38:23,737 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,781 INFO L138 Inliner]: procedures = 27, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 188 [2024-11-03 12:38:23,781 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:38:23,782 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:38:23,782 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:38:23,782 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:38:23,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,801 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,816 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]. [2024-11-03 12:38:23,817 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:38:23,864 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:38:23,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:38:23,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:38:23,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (1/1) ... [2024-11-03 12:38:23,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:38:23,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:38:23,910 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) [2024-11-03 12:38:23,919 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 [2024-11-03 12:38:23,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:38:23,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:38:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:38:23,949 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:38:23,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:38:23,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:38:24,043 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:38:24,045 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:38:36,023 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-03 12:38:36,023 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:38:36,037 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:38:36,037 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:38:36,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:38:36 BoogieIcfgContainer [2024-11-03 12:38:36,037 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:38:36,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:38:36,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:38:36,045 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:38:36,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:38:23" (1/3) ... [2024-11-03 12:38:36,046 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f163b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:38:36, skipping insertion in model container [2024-11-03 12:38:36,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:38:23" (2/3) ... [2024-11-03 12:38:36,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51f163b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:38:36, skipping insertion in model container [2024-11-03 12:38:36,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:38:36" (3/3) ... [2024-11-03 12:38:36,049 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-86.i [2024-11-03 12:38:36,062 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:38:36,062 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:38:36,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:38:36,113 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;@795293f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:38:36,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:38:36,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 58 states have internal predecessors, (82), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-03 12:38:36,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-03 12:38:36,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:38:36,132 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:38:36,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:38:36,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:38:36,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1288294001, now seen corresponding path program 1 times [2024-11-03 12:38:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:38:36,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [818523389] [2024-11-03 12:38:36,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:38:36,146 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:38:36,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:38:36,150 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:38:36,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:38:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:38:36,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:38:36,279 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:38:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-03 12:38:36,314 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:38:37,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-03 12:38:37,068 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:38:37,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [818523389] [2024-11-03 12:38:37,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [818523389] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:38:37,069 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:38:37,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:38:37,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413624529] [2024-11-03 12:38:37,071 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:38:37,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:38:37,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:38:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:38:37,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:38:37,091 INFO L87 Difference]: Start difference. First operand has 85 states, 57 states have (on average 1.4385964912280702) internal successors, (82), 58 states have internal predecessors, (82), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-03 12:38:37,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:38:37,110 INFO L93 Difference]: Finished difference Result 163 states and 283 transitions. [2024-11-03 12:38:37,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:38:37,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) Word has length 165 [2024-11-03 12:38:37,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:38:37,116 INFO L225 Difference]: With dead ends: 163 [2024-11-03 12:38:37,116 INFO L226 Difference]: Without dead ends: 81 [2024-11-03 12:38:37,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:38:37,120 INFO L432 NwaCegarLoop]: 125 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, 125 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 [2024-11-03 12:38:37,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:38:37,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-03 12:38:37,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-03 12:38:37,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 54 states have internal predecessors, (75), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-03 12:38:37,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 125 transitions. [2024-11-03 12:38:37,151 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 125 transitions. Word has length 165 [2024-11-03 12:38:37,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:38:37,152 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 125 transitions. [2024-11-03 12:38:37,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.5) internal successors, (45), 2 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (25), 2 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-03 12:38:37,152 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 125 transitions. [2024-11-03 12:38:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-03 12:38:37,155 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:38:37,155 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:38:37,158 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:38:37,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:38:37,356 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:38:37,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:38:37,357 INFO L85 PathProgramCache]: Analyzing trace with hash -488342105, now seen corresponding path program 1 times [2024-11-03 12:38:37,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:38:37,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [271020256] [2024-11-03 12:38:37,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:38:37,357 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:38:37,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:38:37,359 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:38:37,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:38:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:38:37,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 12:38:37,460 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:38:37,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 12:38:37,536 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:38:38,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-03 12:38:38,221 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:38:38,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [271020256] [2024-11-03 12:38:38,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [271020256] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:38:38,221 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:38:38,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 12:38:38,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31718397] [2024-11-03 12:38:38,222 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:38:38,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 12:38:38,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:38:38,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 12:38:38,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:38:38,224 INFO L87 Difference]: Start difference. First operand 81 states and 125 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-03 12:38:42,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:38:46,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:38:46,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:38:46,821 INFO L93 Difference]: Finished difference Result 236 states and 367 transitions. [2024-11-03 12:38:46,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 12:38:46,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 165 [2024-11-03 12:38:46,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:38:46,826 INFO L225 Difference]: With dead ends: 236 [2024-11-03 12:38:46,826 INFO L226 Difference]: Without dead ends: 158 [2024-11-03 12:38:46,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:38:46,828 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 112 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-03 12:38:46,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 343 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 15 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2024-11-03 12:38:46,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-03 12:38:46,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2024-11-03 12:38:46,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 102 states have (on average 1.3529411764705883) internal successors, (138), 102 states have internal predecessors, (138), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-03 12:38:46,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 238 transitions. [2024-11-03 12:38:46,849 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 238 transitions. Word has length 165 [2024-11-03 12:38:46,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:38:46,849 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 238 transitions. [2024-11-03 12:38:46,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-03 12:38:46,850 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 238 transitions. [2024-11-03 12:38:46,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-03 12:38:46,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:38:46,852 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:38:46,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:38:47,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:38:47,054 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:38:47,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:38:47,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1509410459, now seen corresponding path program 1 times [2024-11-03 12:38:47,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:38:47,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333428472] [2024-11-03 12:38:47,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:38:47,056 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:38:47,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:38:47,061 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:38:47,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:38:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:38:47,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-03 12:38:47,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:38:52,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 662 proven. 93 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-03 12:38:52,827 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:39:38,468 WARN L851 $PredicateComparison]: unable to prove that (forall ((~var_1_9~0 (_ BitVec 8)) (~var_1_11~0 (_ BitVec 8))) (let ((.cse0 ((_ sign_extend 24) ~var_1_9~0)) (.cse1 ((_ sign_extend 24) ~var_1_11~0))) (or (not (bvslt .cse0 ((_ sign_extend 16) ((_ extract 15 0) (bvadd (_ bv3 32) (bvneg .cse1) ((_ sign_extend 16) c_~var_1_30~0)))))) (not (bvsge .cse0 (_ bv0 32))) (not (bvsge .cse1 (_ bv0 32)))))) is different from false [2024-11-03 12:39:38,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 45 proven. 96 refuted. 0 times theorem prover too weak. 1059 trivial. 0 not checked. [2024-11-03 12:39:38,584 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:39:38,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333428472] [2024-11-03 12:39:38,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1333428472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:39:38,585 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:39:38,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-03 12:39:38,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487412991] [2024-11-03 12:39:38,585 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:39:38,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-03 12:39:38,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:39:38,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-03 12:39:38,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=364, Unknown=1, NotChecked=40, Total=506 [2024-11-03 12:39:38,591 INFO L87 Difference]: Start difference. First operand 155 states and 238 transitions. Second operand has 23 states, 23 states have (on average 4.217391304347826) internal successors, (97), 23 states have internal predecessors, (97), 6 states have call successors, (50), 4 states have call predecessors, (50), 8 states have return successors, (50), 6 states have call predecessors, (50), 6 states have call successors, (50)