/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-23.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:29:53,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:29:53,892 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 12:29:53,897 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:29:53,897 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:29:53,918 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:29:53,918 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:29:53,919 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:29:53,919 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:29:53,920 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:29:53,920 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:29:53,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:29:53,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:29:53,926 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:29:53,927 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:29:53,927 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:29:53,927 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:29:53,928 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:29:53,928 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:29:53,928 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:29:53,928 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:29:53,929 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:29:53,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:29:53,931 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:29:53,931 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:29:53,931 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:29:53,931 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:29:53,932 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:29:53,932 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:29:53,932 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:29:53,933 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:29:53,933 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:29:53,933 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:29:53,933 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:29:53,933 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:29:53,934 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:29:53,934 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:29:53,934 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:29:53,935 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:29:53,935 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:29:53,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:29:53,935 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:29:53,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:29:53,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:29:53,936 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:29:54,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:29:54,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:29:54,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:29:54,229 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:29:54,230 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:29:54,231 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-23.i [2024-11-03 12:29:55,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:29:56,066 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:29:56,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-23.i [2024-11-03 12:29:56,077 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c134a8ed/d44ab813d183498882a0230da391cabe/FLAGc88762878 [2024-11-03 12:29:56,091 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c134a8ed/d44ab813d183498882a0230da391cabe [2024-11-03 12:29:56,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:29:56,095 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:29:56,096 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:29:56,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:29:56,102 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:29:56,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553c4e8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56, skipping insertion in model container [2024-11-03 12:29:56,104 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,148 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:29:56,334 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-23.i[916,929] [2024-11-03 12:29:56,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:29:56,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:29:56,475 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-23.i[916,929] [2024-11-03 12:29:56,524 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:29:56,548 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:29:56,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56 WrapperNode [2024-11-03 12:29:56,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:29:56,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:29:56,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:29:56,550 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:29:56,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,608 INFO L138 Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 227 [2024-11-03 12:29:56,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:29:56,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:29:56,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:29:56,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:29:56,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,633 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,653 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 12:29:56,654 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,654 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,674 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:29:56,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:29:56,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:29:56,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:29:56,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (1/1) ... [2024-11-03 12:29:56,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:29:56,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:29:56,739 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 12:29:56,746 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 12:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:29:56,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:29:56,773 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:29:56,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:29:56,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:29:56,903 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:29:56,905 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:30:04,744 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-03 12:30:04,744 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:30:04,759 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:30:04,759 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:30:04,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:30:04 BoogieIcfgContainer [2024-11-03 12:30:04,760 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:30:04,763 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:30:04,763 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:30:04,767 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:30:04,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:29:56" (1/3) ... [2024-11-03 12:30:04,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19de007b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:30:04, skipping insertion in model container [2024-11-03 12:30:04,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:29:56" (2/3) ... [2024-11-03 12:30:04,768 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19de007b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:30:04, skipping insertion in model container [2024-11-03 12:30:04,768 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:30:04" (3/3) ... [2024-11-03 12:30:04,770 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-23.i [2024-11-03 12:30:04,791 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:30:04,791 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:30:04,871 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:30:04,877 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;@69129b5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:30:04,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:30:04,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-11-03 12:30:04,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-03 12:30:04,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:04,898 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:04,899 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:04,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:04,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1104040980, now seen corresponding path program 1 times [2024-11-03 12:30:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:04,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186316263] [2024-11-03 12:30:04,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:04,914 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:04,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:04,916 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 12:30:04,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:30:05,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:05,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 12:30:05,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:07,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1092 proven. 33 refuted. 0 times theorem prover too weak. 1255 trivial. 0 not checked. [2024-11-03 12:30:07,208 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 69 proven. 33 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-03 12:30:09,614 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:09,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186316263] [2024-11-03 12:30:09,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1186316263] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:30:09,615 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:30:09,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2024-11-03 12:30:09,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773660040] [2024-11-03 12:30:09,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:30:09,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 12:30:09,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:09,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 12:30:09,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-03 12:30:09,650 INFO L87 Difference]: Start difference. First operand has 99 states, 61 states have (on average 1.3770491803278688) internal successors, (84), 62 states have internal predecessors, (84), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-03 12:30:16,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:20,697 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:24,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:28,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:32,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:36,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:40,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:44,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:30:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:49,206 INFO L93 Difference]: Finished difference Result 429 states and 803 transitions. [2024-11-03 12:30:49,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-03 12:30:49,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 223 [2024-11-03 12:30:49,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:49,221 INFO L225 Difference]: With dead ends: 429 [2024-11-03 12:30:49,222 INFO L226 Difference]: Without dead ends: 333 [2024-11-03 12:30:49,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 438 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2024-11-03 12:30:49,236 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 464 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 372 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:49,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 599 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 555 Invalid, 7 Unknown, 0 Unchecked, 38.0s Time] [2024-11-03 12:30:49,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-11-03 12:30:49,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 225. [2024-11-03 12:30:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 127 states have (on average 1.2283464566929134) internal successors, (156), 129 states have internal predecessors, (156), 93 states have call successors, (93), 4 states have call predecessors, (93), 4 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-03 12:30:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 342 transitions. [2024-11-03 12:30:49,372 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 342 transitions. Word has length 223 [2024-11-03 12:30:49,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:49,374 INFO L471 AbstractCegarLoop]: Abstraction has 225 states and 342 transitions. [2024-11-03 12:30:49,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 9 states have internal predecessors, (73), 2 states have call successors, (46), 2 states have call predecessors, (46), 4 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-03 12:30:49,376 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 342 transitions. [2024-11-03 12:30:49,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-03 12:30:49,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:49,385 INFO L215 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:49,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:30:49,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:49,587 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:49,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:49,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1103290734, now seen corresponding path program 1 times [2024-11-03 12:30:49,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:49,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1017435835] [2024-11-03 12:30:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:49,589 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:49,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:49,591 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 12:30:49,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:30:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:49,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 12:30:49,775 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:57,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 718 proven. 84 refuted. 0 times theorem prover too weak. 1578 trivial. 0 not checked. [2024-11-03 12:30:57,283 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:31:01,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 18 proven. 84 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2024-11-03 12:31:01,597 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:31:01,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1017435835] [2024-11-03 12:31:01,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1017435835] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:31:01,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:31:01,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2024-11-03 12:31:01,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614220545] [2024-11-03 12:31:01,598 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:31:01,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-03 12:31:01,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:31:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-03 12:31:01,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-03 12:31:01,602 INFO L87 Difference]: Start difference. First operand 225 states and 342 transitions. Second operand has 14 states, 14 states have (on average 6.571428571428571) internal successors, (92), 14 states have internal predecessors, (92), 4 states have call successors, (70), 3 states have call predecessors, (70), 5 states have return successors, (70), 4 states have call predecessors, (70), 4 states have call successors, (70) [2024-11-03 12:31:10,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:31:14,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:31:18,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:31:22,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2024-11-03 12:31:26,953 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []