/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_amount250_file-96.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:58:02,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:58:02,795 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 12:58:02,801 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:58:02,802 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:58:02,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:58:02,834 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:58:02,834 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:58:02,835 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:58:02,835 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:58:02,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:58:02,836 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:58:02,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:58:02,838 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:58:02,839 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:58:02,839 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:58:02,839 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:58:02,840 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:58:02,840 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:58:02,840 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:58:02,841 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:58:02,846 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:58:02,846 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:58:02,846 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:58:02,846 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:58:02,847 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:58:02,847 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:58:02,847 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:58:02,847 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:58:02,847 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:58:02,848 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:58:02,848 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:58:02,848 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:58:02,848 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:58:02,849 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:58:02,849 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:58:02,850 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:58:02,850 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:58:02,850 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:58:02,851 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:58:02,851 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:58:02,851 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:58:02,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:58:02,852 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:58:02,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:58:03,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:58:03,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:58:03,099 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:58:03,100 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:58:03,101 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:58:03,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-96.i [2024-11-03 12:58:04,564 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:58:04,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:58:04,790 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-96.i [2024-11-03 12:58:04,801 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8400b1210/2d7a36d6d72e4b70be9798de7f7af35d/FLAG45ef35aa1 [2024-11-03 12:58:04,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8400b1210/2d7a36d6d72e4b70be9798de7f7af35d [2024-11-03 12:58:04,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:58:04,817 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:58:04,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:58:04,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:58:04,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:58:04,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:58:04" (1/1) ... [2024-11-03 12:58:04,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e6a2d57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:04, skipping insertion in model container [2024-11-03 12:58:04,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:58:04" (1/1) ... [2024-11-03 12:58:04,879 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:58:05,057 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-96.i[916,929] [2024-11-03 12:58:05,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:58:05,217 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:58:05,229 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-96.i[916,929] [2024-11-03 12:58:05,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:58:05,326 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:58:05,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05 WrapperNode [2024-11-03 12:58:05,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:58:05,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:58:05,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:58:05,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:58:05,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,391 INFO L138 Inliner]: procedures = 27, calls = 51, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 332 [2024-11-03 12:58:05,391 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:58:05,392 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:58:05,392 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:58:05,393 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:58:05,400 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,414 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,460 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 12:58:05,460 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,460 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,492 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:58:05,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:58:05,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:58:05,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:58:05,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (1/1) ... [2024-11-03 12:58:05,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:58:05,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:58:05,559 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 12:58:05,561 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 12:58:05,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:58:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:58:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:58:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:58:05,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:58:05,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:58:05,681 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:58:05,683 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:58:28,515 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-11-03 12:58:28,516 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:58:28,531 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:58:28,531 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:58:28,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:58:28 BoogieIcfgContainer [2024-11-03 12:58:28,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:58:28,537 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:58:28,537 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:58:28,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:58:28,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:58:04" (1/3) ... [2024-11-03 12:58:28,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed81b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:58:28, skipping insertion in model container [2024-11-03 12:58:28,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:58:05" (2/3) ... [2024-11-03 12:58:28,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed81b2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:58:28, skipping insertion in model container [2024-11-03 12:58:28,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:58:28" (3/3) ... [2024-11-03 12:58:28,544 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-96.i [2024-11-03 12:58:28,557 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:58:28,557 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:58:28,626 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:58:28,631 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;@3a1c2a46, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:58:28,631 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:58:28,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 95 states have internal predecessors, (138), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 12:58:28,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-03 12:58:28,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:58:28,658 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:28,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:58:28,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:58:28,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1881766993, now seen corresponding path program 1 times [2024-11-03 12:58:28,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:58:28,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333801757] [2024-11-03 12:58:28,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:58:28,675 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:58:28,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:58:28,678 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 12:58:28,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:58:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:58:28,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:58:28,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:58:29,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2024-11-03 12:58:29,041 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:58:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 2738 trivial. 0 not checked. [2024-11-03 12:58:31,835 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:58:31,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333801757] [2024-11-03 12:58:31,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1333801757] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:58:31,836 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:58:31,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:58:31,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965205710] [2024-11-03 12:58:31,840 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:58:31,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:58:31,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:58:31,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:58:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:58:31,871 INFO L87 Difference]: Start difference. First operand has 135 states, 94 states have (on average 1.4680851063829787) internal successors, (138), 95 states have internal predecessors, (138), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) Second operand has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2024-11-03 12:58:31,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:58:31,919 INFO L93 Difference]: Finished difference Result 263 states and 460 transitions. [2024-11-03 12:58:31,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:58:31,921 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) Word has length 262 [2024-11-03 12:58:31,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:58:31,929 INFO L225 Difference]: With dead ends: 263 [2024-11-03 12:58:31,930 INFO L226 Difference]: Without dead ends: 131 [2024-11-03 12:58:31,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 522 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 12:58:31,936 INFO L432 NwaCegarLoop]: 205 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, 205 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 12:58:31,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:58:31,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-03 12:58:31,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-03 12:58:31,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 91 states have (on average 1.4175824175824177) internal successors, (129), 91 states have internal predecessors, (129), 38 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-03 12:58:31,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 205 transitions. [2024-11-03 12:58:31,984 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 205 transitions. Word has length 262 [2024-11-03 12:58:31,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:58:31,984 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 205 transitions. [2024-11-03 12:58:31,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (38), 2 states have call predecessors, (38), 1 states have call successors, (38) [2024-11-03 12:58:31,985 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 205 transitions. [2024-11-03 12:58:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-11-03 12:58:31,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:58:31,990 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:31,997 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:58:32,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:58:32,192 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:58:32,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:58:32,193 INFO L85 PathProgramCache]: Analyzing trace with hash -382927513, now seen corresponding path program 1 times [2024-11-03 12:58:32,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:58:32,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1742466722] [2024-11-03 12:58:32,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:58:32,194 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:58:32,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:58:32,196 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 12:58:32,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:58:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:58:32,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 12:58:32,415 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:58:34,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 253 proven. 3 refuted. 0 times theorem prover too weak. 2556 trivial. 0 not checked. [2024-11-03 12:58:34,455 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:58:38,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 2701 trivial. 0 not checked. [2024-11-03 12:58:38,916 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:58:38,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1742466722] [2024-11-03 12:58:38,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1742466722] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:58:38,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:58:38,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2024-11-03 12:58:38,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695120243] [2024-11-03 12:58:38,917 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:58:38,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-03 12:58:38,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:58:38,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-03 12:58:38,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:58:38,920 INFO L87 Difference]: Start difference. First operand 131 states and 205 transitions. Second operand has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-03 12:58:51,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:55,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:59,134 WARN L539 Checker$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 12:59:03,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:59:07,155 WARN L539 Checker$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 12:59:13,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:59:13,901 INFO L93 Difference]: Finished difference Result 351 states and 543 transitions. [2024-11-03 12:59:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 12:59:13,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 262 [2024-11-03 12:59:13,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:59:13,907 INFO L225 Difference]: With dead ends: 351 [2024-11-03 12:59:13,907 INFO L226 Difference]: Without dead ends: 223 [2024-11-03 12:59:13,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 514 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2024-11-03 12:59:13,910 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 215 mSDsluCounter, 674 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 159 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 905 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:59:13,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 905 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 717 Invalid, 5 Unknown, 0 Unchecked, 33.0s Time] [2024-11-03 12:59:13,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2024-11-03 12:59:13,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 207. [2024-11-03 12:59:13,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 126 states have (on average 1.246031746031746) internal successors, (157), 127 states have internal predecessors, (157), 76 states have call successors, (76), 4 states have call predecessors, (76), 4 states have return successors, (76), 75 states have call predecessors, (76), 76 states have call successors, (76) [2024-11-03 12:59:13,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 309 transitions. [2024-11-03 12:59:13,955 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 309 transitions. Word has length 262 [2024-11-03 12:59:13,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:59:13,958 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 309 transitions. [2024-11-03 12:59:13,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.6) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (39), 2 states have call predecessors, (39), 4 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-03 12:59:13,958 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 309 transitions. [2024-11-03 12:59:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-03 12:59:13,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:59:13,962 INFO L215 NwaCegarLoop]: trace histogram [38, 38, 38, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:13,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:59:14,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:59:14,164 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:59:14,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:59:14,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1486012938, now seen corresponding path program 1 times [2024-11-03 12:59:14,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:59:14,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1727739067] [2024-11-03 12:59:14,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:59:14,165 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:59:14,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:59:14,167 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 12:59:14,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:59:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:59:14,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 12:59:14,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:59:20,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 1387 proven. 66 refuted. 0 times theorem prover too weak. 1359 trivial. 0 not checked. [2024-11-03 12:59:20,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:59:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 2812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-11-03 12:59:24,386 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:59:24,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1727739067] [2024-11-03 12:59:24,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1727739067] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:59:24,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:59:24,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-03 12:59:24,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273474576] [2024-11-03 12:59:24,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:59:24,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 12:59:24,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:59:24,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 12:59:24,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-03 12:59:24,388 INFO L87 Difference]: Start difference. First operand 207 states and 309 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (38), 1 states have call predecessors, (38), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2024-11-03 12:59:26,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:59:33,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:59:37,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:59:41,629 WARN L539 Checker$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 []