/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-26.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:30:16,674 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:30:16,750 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 12:30:16,759 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:30:16,760 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:30:16,791 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:30:16,792 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:30:16,793 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:30:16,793 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:30:16,794 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:30:16,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:30:16,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:30:16,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:30:16,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:30:16,796 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:30:16,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:30:16,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:30:16,803 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:30:16,804 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:30:16,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:30:16,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:30:16,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:30:16,805 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:30:16,806 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:30:16,806 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:30:16,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:30:16,807 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:30:16,807 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:30:16,807 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:30:16,807 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:30:16,810 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:30:16,810 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:30:16,811 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:30:16,811 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:30:16,811 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:30:16,811 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:30:16,812 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:30:16,812 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:30:16,812 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:30:16,812 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:30:16,813 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:30:16,814 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:30:16,814 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:30:16,814 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:30:16,815 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:30:17,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:30:17,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:30:17,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:30:17,104 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:30:17,105 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:30:17,107 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2024-11-03 12:30:18,671 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:30:18,858 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:30:18,859 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-26.i [2024-11-03 12:30:18,877 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e4f617a/e133b49ce79a47529a258ec5368c51a8/FLAGfb8d9cdc5 [2024-11-03 12:30:19,247 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/84e4f617a/e133b49ce79a47529a258ec5368c51a8 [2024-11-03 12:30:19,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:30:19,251 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:30:19,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:30:19,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:30:19,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:30:19,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c09f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19, skipping insertion in model container [2024-11-03 12:30:19,261 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,308 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:30:19,474 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-26.i[916,929] [2024-11-03 12:30:19,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:30:19,579 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:30:19,590 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-26.i[916,929] [2024-11-03 12:30:19,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:30:19,677 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:30:19,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19 WrapperNode [2024-11-03 12:30:19,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:30:19,679 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:30:19,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:30:19,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:30:19,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,702 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,730 INFO L138 Inliner]: procedures = 27, calls = 43, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2024-11-03 12:30:19,731 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:30:19,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:30:19,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:30:19,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:30:19,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,758 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,774 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 12:30:19,775 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,794 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:30:19,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:30:19,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:30:19,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:30:19,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (1/1) ... [2024-11-03 12:30:19,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:30:19,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:30:19,846 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 12:30:19,850 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 12:30:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:30:19,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:30:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:30:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:30:19,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:30:19,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:30:20,009 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:30:20,012 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:30:20,577 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-03 12:30:20,578 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:30:20,597 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:30:20,597 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:30:20,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:30:20 BoogieIcfgContainer [2024-11-03 12:30:20,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:30:20,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:30:20,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:30:20,604 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:30:20,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:30:19" (1/3) ... [2024-11-03 12:30:20,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f38ee1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:30:20, skipping insertion in model container [2024-11-03 12:30:20,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:30:19" (2/3) ... [2024-11-03 12:30:20,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f38ee1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:30:20, skipping insertion in model container [2024-11-03 12:30:20,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:30:20" (3/3) ... [2024-11-03 12:30:20,607 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-26.i [2024-11-03 12:30:20,621 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:30:20,622 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:30:20,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:30:20,682 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;@1ce62edc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:30:20,682 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:30:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 12:30:20,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 12:30:20,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:20,698 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:20,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:20,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:20,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1615266300, now seen corresponding path program 1 times [2024-11-03 12:30:20,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:20,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [657254102] [2024-11-03 12:30:20,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:20,710 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:20,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:20,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:20,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:30:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:20,895 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:30:20,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2024-11-03 12:30:20,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 1682 trivial. 0 not checked. [2024-11-03 12:30:21,218 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:21,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [657254102] [2024-11-03 12:30:21,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [657254102] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:21,220 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:21,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:30:21,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098163628] [2024-11-03 12:30:21,222 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:21,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:30:21,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:21,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:30:21,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:30:21,255 INFO L87 Difference]: Start difference. First operand has 93 states, 60 states have (on average 1.4333333333333333) internal successors, (86), 61 states have internal predecessors, (86), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 1 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 12:30:21,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:21,285 INFO L93 Difference]: Finished difference Result 179 states and 316 transitions. [2024-11-03 12:30:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:30:21,288 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 1 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) Word has length 195 [2024-11-03 12:30:21,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:21,297 INFO L225 Difference]: With dead ends: 179 [2024-11-03 12:30:21,298 INFO L226 Difference]: Without dead ends: 89 [2024-11-03 12:30:21,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 388 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 12:30:21,309 INFO L432 NwaCegarLoop]: 139 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, 139 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 12:30:21,310 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:30:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-03 12:30:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-03 12:30:21,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 57 states have (on average 1.3859649122807018) internal successors, (79), 57 states have internal predecessors, (79), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-03 12:30:21,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 139 transitions. [2024-11-03 12:30:21,354 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 139 transitions. Word has length 195 [2024-11-03 12:30:21,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:21,355 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 139 transitions. [2024-11-03 12:30:21,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 1 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (30), 2 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 12:30:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 139 transitions. [2024-11-03 12:30:21,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 12:30:21,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:21,361 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:21,369 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0 [2024-11-03 12:30:21,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:21,563 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:21,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:21,564 INFO L85 PathProgramCache]: Analyzing trace with hash 198903544, now seen corresponding path program 1 times [2024-11-03 12:30:21,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:21,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2141517841] [2024-11-03 12:30:21,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:21,565 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:21,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:21,566 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:21,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:30:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:21,723 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:30:21,733 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:22,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:22,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:22,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:22,531 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:22,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2141517841] [2024-11-03 12:30:22,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2141517841] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:22,532 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:22,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 12:30:22,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845910581] [2024-11-03 12:30:22,532 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:22,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:30:22,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:30:22,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:30:22,539 INFO L87 Difference]: Start difference. First operand 89 states and 139 transitions. Second operand has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 12:30:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:23,666 INFO L93 Difference]: Finished difference Result 423 states and 659 transitions. [2024-11-03 12:30:23,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-03 12:30:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 195 [2024-11-03 12:30:23,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:23,678 INFO L225 Difference]: With dead ends: 423 [2024-11-03 12:30:23,678 INFO L226 Difference]: Without dead ends: 337 [2024-11-03 12:30:23,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-03 12:30:23,681 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 412 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:23,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 666 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-03 12:30:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-03 12:30:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 173. [2024-11-03 12:30:23,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 110 states have (on average 1.3909090909090909) internal successors, (153), 110 states have internal predecessors, (153), 60 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-03 12:30:23,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 273 transitions. [2024-11-03 12:30:23,744 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 273 transitions. Word has length 195 [2024-11-03 12:30:23,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:23,745 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 273 transitions. [2024-11-03 12:30:23,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.375) internal successors, (75), 8 states have internal predecessors, (75), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 12:30:23,749 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 273 transitions. [2024-11-03 12:30:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 12:30:23,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:23,753 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:23,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:30:23,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:23,956 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:23,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:23,957 INFO L85 PathProgramCache]: Analyzing trace with hash 417758262, now seen corresponding path program 1 times [2024-11-03 12:30:23,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:23,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [592751698] [2024-11-03 12:30:23,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:23,958 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:23,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:23,960 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 12:30:23,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:30:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:24,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-03 12:30:24,080 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:24,401 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:24,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:24,630 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:24,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [592751698] [2024-11-03 12:30:24,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [592751698] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:24,631 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:24,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2024-11-03 12:30:24,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650272660] [2024-11-03 12:30:24,631 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:24,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:30:24,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:24,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:30:24,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:30:24,634 INFO L87 Difference]: Start difference. First operand 173 states and 273 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 12:30:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:25,417 INFO L93 Difference]: Finished difference Result 513 states and 813 transitions. [2024-11-03 12:30:25,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 12:30:25,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 195 [2024-11-03 12:30:25,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:25,422 INFO L225 Difference]: With dead ends: 513 [2024-11-03 12:30:25,423 INFO L226 Difference]: Without dead ends: 343 [2024-11-03 12:30:25,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 384 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:30:25,425 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 46 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:25,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 425 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-03 12:30:25,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-03 12:30:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 341. [2024-11-03 12:30:25,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 216 states have (on average 1.3888888888888888) internal successors, (300), 216 states have internal predecessors, (300), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-03 12:30:25,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 540 transitions. [2024-11-03 12:30:25,533 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 540 transitions. Word has length 195 [2024-11-03 12:30:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:25,534 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 540 transitions. [2024-11-03 12:30:25,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 12:30:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 540 transitions. [2024-11-03 12:30:25,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 12:30:25,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:25,538 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:25,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:30:25,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:25,745 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:25,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:25,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1170589640, now seen corresponding path program 1 times [2024-11-03 12:30:25,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:25,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821180425] [2024-11-03 12:30:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:25,747 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:25,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:25,750 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 12:30:25,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:30:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:25,846 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-03 12:30:25,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:25,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:25,866 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:25,999 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:25,999 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:26,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821180425] [2024-11-03 12:30:26,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1821180425] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:26,000 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:26,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2024-11-03 12:30:26,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999775648] [2024-11-03 12:30:26,000 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:26,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-03 12:30:26,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:26,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-03 12:30:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:30:26,006 INFO L87 Difference]: Start difference. First operand 341 states and 540 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 12:30:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:26,377 INFO L93 Difference]: Finished difference Result 1017 states and 1614 transitions. [2024-11-03 12:30:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-03 12:30:26,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 195 [2024-11-03 12:30:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:26,389 INFO L225 Difference]: With dead ends: 1017 [2024-11-03 12:30:26,390 INFO L226 Difference]: Without dead ends: 679 [2024-11-03 12:30:26,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-03 12:30:26,393 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 133 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:26,394 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 371 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 12:30:26,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-03 12:30:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 345. [2024-11-03 12:30:26,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 220 states have (on average 1.3818181818181818) internal successors, (304), 220 states have internal predecessors, (304), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-03 12:30:26,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 544 transitions. [2024-11-03 12:30:26,499 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 544 transitions. Word has length 195 [2024-11-03 12:30:26,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:26,501 INFO L471 AbstractCegarLoop]: Abstraction has 345 states and 544 transitions. [2024-11-03 12:30:26,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 12:30:26,502 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 544 transitions. [2024-11-03 12:30:26,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-03 12:30:26,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:26,505 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:26,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-03 12:30:26,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:26,709 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:26,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2113260406, now seen corresponding path program 1 times [2024-11-03 12:30:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:26,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198855159] [2024-11-03 12:30:26,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:26,710 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:26,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:26,711 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:26,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 12:30:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:26,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-03 12:30:26,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:27,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 593 proven. 69 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2024-11-03 12:30:27,238 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:27,438 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:27,439 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:27,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198855159] [2024-11-03 12:30:27,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [198855159] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-03 12:30:27,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-03 12:30:27,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-03 12:30:27,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127731945] [2024-11-03 12:30:27,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:27,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-03 12:30:27,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:27,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-03 12:30:27,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:30:27,441 INFO L87 Difference]: Start difference. First operand 345 states and 544 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 12:30:27,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:27,869 INFO L93 Difference]: Finished difference Result 997 states and 1572 transitions. [2024-11-03 12:30:27,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-03 12:30:27,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) Word has length 195 [2024-11-03 12:30:27,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:27,888 INFO L225 Difference]: With dead ends: 997 [2024-11-03 12:30:27,889 INFO L226 Difference]: Without dead ends: 655 [2024-11-03 12:30:27,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:30:27,893 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 110 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:27,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 309 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-03 12:30:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-03 12:30:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 389. [2024-11-03 12:30:27,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 264 states have (on average 1.3901515151515151) internal successors, (367), 264 states have internal predecessors, (367), 120 states have call successors, (120), 4 states have call predecessors, (120), 4 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-11-03 12:30:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 607 transitions. [2024-11-03 12:30:27,963 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 607 transitions. Word has length 195 [2024-11-03 12:30:27,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:27,963 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 607 transitions. [2024-11-03 12:30:27,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 1 states have call predecessors, (30), 1 states have call successors, (30) [2024-11-03 12:30:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 607 transitions. [2024-11-03 12:30:27,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-03 12:30:27,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:27,966 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:27,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Ended with exit code 0 [2024-11-03 12:30:28,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:28,169 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:28,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:28,170 INFO L85 PathProgramCache]: Analyzing trace with hash 972961156, now seen corresponding path program 1 times [2024-11-03 12:30:28,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:28,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086863965] [2024-11-03 12:30:28,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:28,170 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:28,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:28,171 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:28,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Waiting until timeout for monitored process [2024-11-03 12:30:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:28,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-03 12:30:28,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:29,089 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1740 trivial. 0 not checked. [2024-11-03 12:30:29,361 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:29,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086863965] [2024-11-03 12:30:29,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2086863965] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:30:29,363 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:30:29,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 8 [2024-11-03 12:30:29,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093003615] [2024-11-03 12:30:29,364 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:30:29,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-03 12:30:29,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:29,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-03 12:30:29,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-03 12:30:29,367 INFO L87 Difference]: Start difference. First operand 389 states and 607 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 12:30:32,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:32,762 INFO L93 Difference]: Finished difference Result 2532 states and 3975 transitions. [2024-11-03 12:30:32,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-03 12:30:32,763 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) Word has length 196 [2024-11-03 12:30:32,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:32,780 INFO L225 Difference]: With dead ends: 2532 [2024-11-03 12:30:32,780 INFO L226 Difference]: Without dead ends: 2146 [2024-11-03 12:30:32,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-03 12:30:32,786 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 826 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:32,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 814 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-03 12:30:32,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2146 states. [2024-11-03 12:30:33,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2146 to 1334. [2024-11-03 12:30:33,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1334 states, 899 states have (on average 1.3793103448275863) internal successors, (1240), 899 states have internal predecessors, (1240), 420 states have call successors, (420), 14 states have call predecessors, (420), 14 states have return successors, (420), 420 states have call predecessors, (420), 420 states have call successors, (420) [2024-11-03 12:30:33,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1334 states to 1334 states and 2080 transitions. [2024-11-03 12:30:33,071 INFO L78 Accepts]: Start accepts. Automaton has 1334 states and 2080 transitions. Word has length 196 [2024-11-03 12:30:33,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:33,072 INFO L471 AbstractCegarLoop]: Abstraction has 1334 states and 2080 transitions. [2024-11-03 12:30:33,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 2 states have call successors, (60), 2 states have call predecessors, (60), 2 states have return successors, (60), 2 states have call predecessors, (60), 2 states have call successors, (60) [2024-11-03 12:30:33,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1334 states and 2080 transitions. [2024-11-03 12:30:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-03 12:30:33,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:33,077 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:33,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (7)] Ended with exit code 0 [2024-11-03 12:30:33,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:33,278 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:33,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:33,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1546998778, now seen corresponding path program 1 times [2024-11-03 12:30:33,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:33,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791595503] [2024-11-03 12:30:33,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:33,280 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:33,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:33,282 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:33,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Waiting until timeout for monitored process [2024-11-03 12:30:33,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:33,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-03 12:30:33,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:34,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 1035 proven. 144 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-03 12:30:34,078 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:30:34,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 84 proven. 87 refuted. 0 times theorem prover too weak. 1569 trivial. 0 not checked. [2024-11-03 12:30:34,469 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:30:34,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791595503] [2024-11-03 12:30:34,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [791595503] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:30:34,469 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:30:34,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 17 [2024-11-03 12:30:34,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379655446] [2024-11-03 12:30:34,470 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:30:34,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-03 12:30:34,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:30:34,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-03 12:30:34,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-03 12:30:34,471 INFO L87 Difference]: Start difference. First operand 1334 states and 2080 transitions. Second operand has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 5 states have call successors, (53), 4 states have call predecessors, (53), 8 states have return successors, (54), 5 states have call predecessors, (54), 5 states have call successors, (54) [2024-11-03 12:30:35,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:30:35,923 INFO L93 Difference]: Finished difference Result 1706 states and 2612 transitions. [2024-11-03 12:30:35,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-03 12:30:35,924 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 5 states have call successors, (53), 4 states have call predecessors, (53), 8 states have return successors, (54), 5 states have call predecessors, (54), 5 states have call successors, (54) Word has length 196 [2024-11-03 12:30:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:30:35,929 INFO L225 Difference]: With dead ends: 1706 [2024-11-03 12:30:35,929 INFO L226 Difference]: Without dead ends: 375 [2024-11-03 12:30:35,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 362 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=443, Invalid=1117, Unknown=0, NotChecked=0, Total=1560 [2024-11-03 12:30:35,935 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 337 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-03 12:30:35,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 436 Invalid, 816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [143 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-03 12:30:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-03 12:30:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 197. [2024-11-03 12:30:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 128 states have (on average 1.2265625) internal successors, (157), 128 states have internal predecessors, (157), 60 states have call successors, (60), 8 states have call predecessors, (60), 8 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-03 12:30:35,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 277 transitions. [2024-11-03 12:30:35,981 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 277 transitions. Word has length 196 [2024-11-03 12:30:35,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:30:35,981 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 277 transitions. [2024-11-03 12:30:35,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.9411764705882355) internal successors, (84), 17 states have internal predecessors, (84), 5 states have call successors, (53), 4 states have call predecessors, (53), 8 states have return successors, (54), 5 states have call predecessors, (54), 5 states have call successors, (54) [2024-11-03 12:30:35,982 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 277 transitions. [2024-11-03 12:30:35,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-03 12:30:35,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:30:35,986 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:30:35,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (8)] Forceful destruction successful, exit code 0 [2024-11-03 12:30:36,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:36,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:30:36,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:30:36,191 INFO L85 PathProgramCache]: Analyzing trace with hash -979720500, now seen corresponding path program 1 times [2024-11-03 12:30:36,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:30:36,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [554410878] [2024-11-03 12:30:36,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:30:36,191 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:30:36,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:30:36,193 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-03 12:30:36,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (9)] Waiting until timeout for monitored process [2024-11-03 12:30:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:30:36,284 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-03 12:30:36,292 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:30:45,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1740 backedges. 618 proven. 132 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-11-03 12:30:45,593 INFO L311 TraceCheckSpWp]: Computing backward predicates...