/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-68.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:35:42,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:35:42,507 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 12:35:42,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:35:42,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:35:42,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:35:42,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:35:42,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:35:42,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:35:42,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:35:42,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:35:42,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:35:42,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:35:42,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:35:42,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:35:42,539 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:35:42,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:35:42,540 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:35:42,540 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:35:42,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:35:42,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:35:42,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:35:42,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:35:42,541 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:35:42,542 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:35:42,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:35:42,542 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:35:42,542 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:35:42,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:35:42,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:35:42,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:35:42,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:35:42,543 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:35:42,544 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:35:42,544 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:35:42,544 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:35:42,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:35:42,545 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:35:42,545 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:35:42,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:35:42,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:35:42,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:35:42,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:35:42,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:35:42,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-68.i [2024-11-03 12:35:43,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:35:44,123 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:35:44,124 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-68.i [2024-11-03 12:35:44,132 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3d62ec7/3ead56db437b45c18e906a3a472be573/FLAGfb67939a0 [2024-11-03 12:35:44,528 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa3d62ec7/3ead56db437b45c18e906a3a472be573 [2024-11-03 12:35:44,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:35:44,531 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:35:44,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:35:44,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:35:44,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:35:44,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fc6170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44, skipping insertion in model container [2024-11-03 12:35:44,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,568 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:35:44,687 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-68.i[916,929] [2024-11-03 12:35:44,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:35:44,765 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:35:44,774 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-68.i[916,929] [2024-11-03 12:35:44,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:35:44,831 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:35:44,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44 WrapperNode [2024-11-03 12:35:44,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:35:44,832 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:35:44,832 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:35:44,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:35:44,837 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,845 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,864 INFO L138 Inliner]: procedures = 27, calls = 53, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 236 [2024-11-03 12:35:44,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:35:44,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:35:44,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:35:44,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:35:44,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,887 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 12:35:44,887 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,887 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,911 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:35:44,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:35:44,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:35:44,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:35:44,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (1/1) ... [2024-11-03 12:35:44,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:35:44,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:35:44,938 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 12:35:44,943 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 12:35:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:35:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:35:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:35:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:35:44,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:35:44,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:35:45,051 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:35:45,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:35:46,569 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-03 12:35:46,569 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:35:46,578 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:35:46,579 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:35:46,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:35:46 BoogieIcfgContainer [2024-11-03 12:35:46,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:35:46,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:35:46,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:35:46,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:35:46,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:35:44" (1/3) ... [2024-11-03 12:35:46,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18582356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:35:46, skipping insertion in model container [2024-11-03 12:35:46,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:35:44" (2/3) ... [2024-11-03 12:35:46,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18582356 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:35:46, skipping insertion in model container [2024-11-03 12:35:46,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:35:46" (3/3) ... [2024-11-03 12:35:46,586 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-68.i [2024-11-03 12:35:46,599 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:35:46,599 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:35:46,670 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:35:46,675 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;@96c57e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:35:46,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:35:46,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 63 states have internal predecessors, (84), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-03 12:35:46,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-03 12:35:46,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:35:46,695 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:46,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:35:46,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:35:46,699 INFO L85 PathProgramCache]: Analyzing trace with hash -820819256, now seen corresponding path program 1 times [2024-11-03 12:35:46,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:35:46,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1545826810] [2024-11-03 12:35:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:35:46,707 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:35:46,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:46,709 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 12:35:46,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:35:46,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:35:46,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:35:46,905 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:35:46,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2024-11-03 12:35:46,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:35:47,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 3042 trivial. 0 not checked. [2024-11-03 12:35:47,252 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:35:47,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1545826810] [2024-11-03 12:35:47,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1545826810] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:35:47,253 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:35:47,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:35:47,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870573274] [2024-11-03 12:35:47,255 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:35:47,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:35:47,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:35:47,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:35:47,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:35:47,279 INFO L87 Difference]: Start difference. First operand has 105 states, 62 states have (on average 1.3548387096774193) internal successors, (84), 63 states have internal predecessors, (84), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) Second operand has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-03 12:35:47,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:35:47,303 INFO L93 Difference]: Finished difference Result 203 states and 362 transitions. [2024-11-03 12:35:47,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:35:47,305 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 1 states have call successors, (40) Word has length 251 [2024-11-03 12:35:47,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:35:47,310 INFO L225 Difference]: With dead ends: 203 [2024-11-03 12:35:47,310 INFO L226 Difference]: Without dead ends: 101 [2024-11-03 12:35:47,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 500 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 12:35:47,316 INFO L432 NwaCegarLoop]: 157 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, 157 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 12:35:47,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:35:47,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-03 12:35:47,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-03 12:35:47,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 59 states have (on average 1.305084745762712) internal successors, (77), 59 states have internal predecessors, (77), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-03 12:35:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 157 transitions. [2024-11-03 12:35:47,352 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 157 transitions. Word has length 251 [2024-11-03 12:35:47,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:35:47,353 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 157 transitions. [2024-11-03 12:35:47,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 2 states have return successors, (40), 2 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-03 12:35:47,353 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 157 transitions. [2024-11-03 12:35:47,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-03 12:35:47,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:35:47,357 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:47,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:35:47,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:47,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:35:47,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:35:47,562 INFO L85 PathProgramCache]: Analyzing trace with hash 666519812, now seen corresponding path program 1 times [2024-11-03 12:35:47,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:35:47,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430188818] [2024-11-03 12:35:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:35:47,563 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:35:47,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:47,565 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 12:35:47,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:35:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:35:47,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 12:35:47,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:35:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-03 12:35:48,010 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:35:48,285 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3120 trivial. 0 not checked. [2024-11-03 12:35:48,285 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:35:48,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430188818] [2024-11-03 12:35:48,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1430188818] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:35:48,286 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:35:48,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2024-11-03 12:35:48,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296336727] [2024-11-03 12:35:48,286 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:35:48,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 12:35:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:35:48,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 12:35:48,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 12:35:48,291 INFO L87 Difference]: Start difference. First operand 101 states and 157 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-03 12:35:49,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:35:49,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:35:49,696 INFO L93 Difference]: Finished difference Result 199 states and 311 transitions. [2024-11-03 12:35:49,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 12:35:49,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) Word has length 251 [2024-11-03 12:35:49,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:35:49,723 INFO L225 Difference]: With dead ends: 199 [2024-11-03 12:35:49,723 INFO L226 Difference]: Without dead ends: 101 [2024-11-03 12:35:49,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-03 12:35:49,725 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-03 12:35:49,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 448 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-03 12:35:49,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-03 12:35:49,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-03 12:35:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 59 states have (on average 1.2881355932203389) internal successors, (76), 59 states have internal predecessors, (76), 40 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-03 12:35:49,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 156 transitions. [2024-11-03 12:35:49,735 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 156 transitions. Word has length 251 [2024-11-03 12:35:49,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:35:49,737 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 156 transitions. [2024-11-03 12:35:49,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (40), 1 states have call predecessors, (40), 1 states have return successors, (40), 1 states have call predecessors, (40), 1 states have call successors, (40) [2024-11-03 12:35:49,738 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 156 transitions. [2024-11-03 12:35:49,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-03 12:35:49,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:35:49,743 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:49,753 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:35:49,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:49,944 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:35:49,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:35:49,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1022423930, now seen corresponding path program 1 times [2024-11-03 12:35:49,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:35:49,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1751768100] [2024-11-03 12:35:49,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:35:49,945 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:35:49,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:49,946 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 12:35:49,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:35:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:35:50,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 12:35:50,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:35:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 1219 proven. 87 refuted. 0 times theorem prover too weak. 1814 trivial. 0 not checked. [2024-11-03 12:35:50,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:35:51,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 30 proven. 87 refuted. 0 times theorem prover too weak. 3003 trivial. 0 not checked. [2024-11-03 12:35:51,042 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:35:51,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1751768100] [2024-11-03 12:35:51,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1751768100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:35:51,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:35:51,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2024-11-03 12:35:51,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640707721] [2024-11-03 12:35:51,045 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:35:51,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:35:51,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:35:51,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:35:51,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:35:51,047 INFO L87 Difference]: Start difference. First operand 101 states and 156 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-03 12:35:53,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:35:53,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:35:53,998 INFO L93 Difference]: Finished difference Result 313 states and 476 transitions. [2024-11-03 12:35:53,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 12:35:53,998 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 251 [2024-11-03 12:35:53,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:35:54,001 INFO L225 Difference]: With dead ends: 313 [2024-11-03 12:35:54,001 INFO L226 Difference]: Without dead ends: 215 [2024-11-03 12:35:54,002 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 494 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2024-11-03 12:35:54,007 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 167 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-03 12:35:54,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 360 Invalid, 378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-03 12:35:54,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-03 12:35:54,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 205. [2024-11-03 12:35:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 120 states have (on average 1.275) internal successors, (153), 120 states have internal predecessors, (153), 80 states have call successors, (80), 4 states have call predecessors, (80), 4 states have return successors, (80), 80 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-03 12:35:54,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 313 transitions. [2024-11-03 12:35:54,047 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 313 transitions. Word has length 251 [2024-11-03 12:35:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:35:54,048 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 313 transitions. [2024-11-03 12:35:54,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (69), 2 states have call predecessors, (69), 4 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-11-03 12:35:54,048 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 313 transitions. [2024-11-03 12:35:54,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-03 12:35:54,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:35:54,052 INFO L215 NwaCegarLoop]: trace histogram [40, 40, 40, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:35:54,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:35:54,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:54,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:35:54,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:35:54,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1020576888, now seen corresponding path program 1 times [2024-11-03 12:35:54,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:35:54,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [636107502] [2024-11-03 12:35:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:35:54,254 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:35:54,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:35:54,255 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:35:54,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:35:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:35:54,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-03 12:35:54,360 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:35:56,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 2156 proven. 180 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2024-11-03 12:35:56,862 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:37:16,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3120 backedges. 252 proven. 198 refuted. 0 times theorem prover too weak. 2670 trivial. 0 not checked. [2024-11-03 12:37:16,938 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:37:16,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [636107502] [2024-11-03 12:37:16,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [636107502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:37:16,938 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:37:16,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 32 [2024-11-03 12:37:16,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982794715] [2024-11-03 12:37:16,939 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:37:16,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-03 12:37:16,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:37:16,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-03 12:37:16,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=263, Invalid=729, Unknown=0, NotChecked=0, Total=992 [2024-11-03 12:37:16,941 INFO L87 Difference]: Start difference. First operand 205 states and 313 transitions. Second operand has 32 states, 31 states have (on average 3.903225806451613) internal successors, (121), 30 states have internal predecessors, (121), 10 states have call successors, (80), 6 states have call predecessors, (80), 13 states have return successors, (80), 10 states have call predecessors, (80), 10 states have call successors, (80)