/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 12:56:47,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 12:56:47,540 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 12:56:47,542 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 12:56:47,542 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 12:56:47,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 12:56:47,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 12:56:47,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 12:56:47,565 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 12:56:47,566 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 12:56:47,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 12:56:47,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 12:56:47,567 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 12:56:47,567 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 12:56:47,567 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 12:56:47,567 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 12:56:47,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 12:56:47,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 12:56:47,568 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 12:56:47,568 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 12:56:47,568 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 12:56:47,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 12:56:47,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 12:56:47,572 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 12:56:47,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 12:56:47,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 12:56:47,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 12:56:47,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:56:47,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 12:56:47,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 12:56:47,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 12:56:47,573 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 12:56:47,573 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 12:56:47,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 12:56:47,574 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 12:56:47,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 12:56:47,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 12:56:47,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-03 12:56:47,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 12:56:47,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 12:56:47,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 12:56:47,748 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 12:56:47,748 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 12:56:47,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i [2024-11-03 12:56:48,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 12:56:49,125 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 12:56:49,125 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i [2024-11-03 12:56:49,134 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/960cde79b/0d3451bbef6646b1ac767f4ce46e9b17/FLAGc94a03d0f [2024-11-03 12:56:49,484 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/960cde79b/0d3451bbef6646b1ac767f4ce46e9b17 [2024-11-03 12:56:49,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 12:56:49,487 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 12:56:49,488 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 12:56:49,488 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 12:56:49,494 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 12:56:49,494 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,495 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5260c5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49, skipping insertion in model container [2024-11-03 12:56:49,495 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,528 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 12:56:49,640 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i[916,929] [2024-11-03 12:56:49,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:56:49,748 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 12:56:49,757 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount250_file-89.i[916,929] [2024-11-03 12:56:49,821 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 12:56:49,843 INFO L204 MainTranslator]: Completed translation [2024-11-03 12:56:49,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49 WrapperNode [2024-11-03 12:56:49,844 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 12:56:49,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 12:56:49,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 12:56:49,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 12:56:49,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,908 INFO L138 Inliner]: procedures = 27, calls = 56, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 339 [2024-11-03 12:56:49,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 12:56:49,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 12:56:49,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 12:56:49,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 12:56:49,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,939 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 12:56:49,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,955 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,958 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 12:56:49,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 12:56:49,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 12:56:49,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 12:56:49,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (1/1) ... [2024-11-03 12:56:49,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 12:56:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 12:56:49,998 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 12:56:50,000 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 12:56:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 12:56:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 12:56:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 12:56:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 12:56:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 12:56:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 12:56:50,111 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 12:56:50,112 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 12:56:55,880 INFO L? ?]: Removed 44 outVars from TransFormulas that were not future-live. [2024-11-03 12:56:55,880 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 12:56:55,893 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 12:56:55,894 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 12:56:55,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:55 BoogieIcfgContainer [2024-11-03 12:56:55,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 12:56:55,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 12:56:55,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 12:56:55,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 12:56:55,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:56:49" (1/3) ... [2024-11-03 12:56:55,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e55a1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:55, skipping insertion in model container [2024-11-03 12:56:55,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:56:49" (2/3) ... [2024-11-03 12:56:55,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e55a1a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:56:55, skipping insertion in model container [2024-11-03 12:56:55,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:56:55" (3/3) ... [2024-11-03 12:56:55,901 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-89.i [2024-11-03 12:56:55,912 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 12:56:55,912 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 12:56:55,969 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 12:56:55,973 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;@2a8787a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 12:56:55,974 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 12:56:55,977 INFO L276 IsEmpty]: Start isEmpty. Operand has 147 states, 101 states have (on average 1.5346534653465347) internal successors, (155), 102 states have internal predecessors, (155), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-03 12:56:55,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-03 12:56:55,989 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:56:55,989 INFO L215 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:55,990 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:56:55,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:56:55,993 INFO L85 PathProgramCache]: Analyzing trace with hash -344873712, now seen corresponding path program 1 times [2024-11-03 12:56:55,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:56:55,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1583540266] [2024-11-03 12:56:55,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:56:56,000 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:56:56,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:56:56,002 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 12:56:56,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-03 12:56:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:56:56,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 12:56:56,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:56:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2024-11-03 12:56:56,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:56:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 3528 trivial. 0 not checked. [2024-11-03 12:56:57,189 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:56:57,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1583540266] [2024-11-03 12:56:57,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1583540266] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:56:57,190 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:56:57,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 12:56:57,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986347713] [2024-11-03 12:56:57,192 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:56:57,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 12:56:57,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:56:57,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 12:56:57,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 12:56:57,216 INFO L87 Difference]: Start difference. First operand has 147 states, 101 states have (on average 1.5346534653465347) internal successors, (155), 102 states have internal predecessors, (155), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-03 12:56:57,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:56:57,251 INFO L93 Difference]: Finished difference Result 287 states and 519 transitions. [2024-11-03 12:56:57,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 12:56:57,255 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) Word has length 283 [2024-11-03 12:56:57,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:56:57,261 INFO L225 Difference]: With dead ends: 287 [2024-11-03 12:56:57,261 INFO L226 Difference]: Without dead ends: 143 [2024-11-03 12:56:57,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 564 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 12:56:57,266 INFO L432 NwaCegarLoop]: 234 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, 234 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 12:56:57,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 12:56:57,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-03 12:56:57,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-03 12:56:57,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 98 states have (on average 1.510204081632653) internal successors, (148), 98 states have internal predecessors, (148), 43 states have call successors, (43), 1 states have call predecessors, (43), 1 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2024-11-03 12:56:57,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 234 transitions. [2024-11-03 12:56:57,318 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 234 transitions. Word has length 283 [2024-11-03 12:56:57,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:56:57,318 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 234 transitions. [2024-11-03 12:56:57,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (43), 1 states have call predecessors, (43), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) [2024-11-03 12:56:57,319 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 234 transitions. [2024-11-03 12:56:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-11-03 12:56:57,323 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:56:57,323 INFO L215 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:57,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-03 12:56:57,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:56:57,524 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:56:57,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:56:57,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1001498174, now seen corresponding path program 1 times [2024-11-03 12:56:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:56:57,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2036267583] [2024-11-03 12:56:57,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:56:57,526 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:56:57,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:56:57,527 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 12:56:57,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-03 12:56:57,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:56:57,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:56:57,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:57:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 658 proven. 114 refuted. 0 times theorem prover too weak. 2840 trivial. 0 not checked. [2024-11-03 12:57:00,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:57:02,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 12 proven. 114 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-03 12:57:02,041 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:57:02,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2036267583] [2024-11-03 12:57:02,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [2036267583] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:57:02,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:57:02,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-03 12:57:02,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418444749] [2024-11-03 12:57:02,042 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:57:02,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 12:57:02,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:57:02,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 12:57:02,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 12:57:02,045 INFO L87 Difference]: Start difference. First operand 143 states and 234 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-03 12:57:07,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:11,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:15,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:57:16,156 INFO L93 Difference]: Finished difference Result 293 states and 474 transitions. [2024-11-03 12:57:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 12:57:16,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 283 [2024-11-03 12:57:16,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:57:16,159 INFO L225 Difference]: With dead ends: 293 [2024-11-03 12:57:16,159 INFO L226 Difference]: Without dead ends: 153 [2024-11-03 12:57:16,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 558 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:57:16,161 INFO L432 NwaCegarLoop]: 178 mSDtfsCounter, 211 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2024-11-03 12:57:16,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 425 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 264 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2024-11-03 12:57:16,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2024-11-03 12:57:16,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 150. [2024-11-03 12:57:16,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 100 states have (on average 1.43) internal successors, (143), 101 states have internal predecessors, (143), 47 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (47), 46 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-03 12:57:16,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 237 transitions. [2024-11-03 12:57:16,176 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 237 transitions. Word has length 283 [2024-11-03 12:57:16,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:57:16,177 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 237 transitions. [2024-11-03 12:57:16,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 2 states have call successors, (81), 2 states have call predecessors, (81), 4 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2024-11-03 12:57:16,177 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 237 transitions. [2024-11-03 12:57:16,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-03 12:57:16,180 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:57:16,180 INFO L215 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:16,184 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0 [2024-11-03 12:57:16,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:57:16,381 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:57:16,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:57:16,381 INFO L85 PathProgramCache]: Analyzing trace with hash -817302340, now seen corresponding path program 1 times [2024-11-03 12:57:16,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:57:16,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868598395] [2024-11-03 12:57:16,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:57:16,382 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:57:16,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:57:16,383 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 12:57:16,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process [2024-11-03 12:57:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:57:16,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:57:16,498 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:57:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 918 proven. 108 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked. [2024-11-03 12:57:19,232 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:57:21,420 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 18 proven. 108 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-03 12:57:21,421 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:57:21,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868598395] [2024-11-03 12:57:21,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [868598395] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:57:21,421 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:57:21,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2024-11-03 12:57:21,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992251252] [2024-11-03 12:57:21,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:57:21,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-03 12:57:21,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:57:21,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-03 12:57:21,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-03 12:57:21,424 INFO L87 Difference]: Start difference. First operand 150 states and 237 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-03 12:57:27,737 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:31,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:35,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:36,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:57:36,100 INFO L93 Difference]: Finished difference Result 304 states and 474 transitions. [2024-11-03 12:57:36,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-03 12:57:36,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 284 [2024-11-03 12:57:36,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:57:36,104 INFO L225 Difference]: With dead ends: 304 [2024-11-03 12:57:36,104 INFO L226 Difference]: Without dead ends: 164 [2024-11-03 12:57:36,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-03 12:57:36,107 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 193 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 20 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2024-11-03 12:57:36,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 428 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 282 Invalid, 3 Unknown, 0 Unchecked, 14.5s Time] [2024-11-03 12:57:36,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-03 12:57:36,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 161. [2024-11-03 12:57:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 107 states have (on average 1.3738317757009346) internal successors, (147), 108 states have internal predecessors, (147), 49 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (49), 48 states have call predecessors, (49), 49 states have call successors, (49) [2024-11-03 12:57:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 245 transitions. [2024-11-03 12:57:36,123 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 245 transitions. Word has length 284 [2024-11-03 12:57:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:57:36,124 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 245 transitions. [2024-11-03 12:57:36,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-03 12:57:36,124 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 245 transitions. [2024-11-03 12:57:36,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-03 12:57:36,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:57:36,129 INFO L215 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:36,132 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0 [2024-11-03 12:57:36,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:57:36,330 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:57:36,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:57:36,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1105925694, now seen corresponding path program 1 times [2024-11-03 12:57:36,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:57:36,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [161941459] [2024-11-03 12:57:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:57:36,331 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:57:36,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:57:36,333 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 12:57:36,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process [2024-11-03 12:57:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:57:36,435 INFO L255 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-03 12:57:36,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:57:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 918 proven. 108 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked. [2024-11-03 12:57:39,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:57:41,887 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 18 proven. 108 refuted. 0 times theorem prover too weak. 3486 trivial. 0 not checked. [2024-11-03 12:57:41,887 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:57:41,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [161941459] [2024-11-03 12:57:41,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [161941459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 12:57:41,888 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 12:57:41,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2024-11-03 12:57:41,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108750244] [2024-11-03 12:57:41,888 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 12:57:41,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-03 12:57:41,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:57:41,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-03 12:57:41,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-03 12:57:41,892 INFO L87 Difference]: Start difference. First operand 161 states and 245 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-03 12:57:49,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:53,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:57:57,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:01,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:05,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:09,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:13,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:17,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:21,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 12:58:23,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 12:58:23,066 INFO L93 Difference]: Finished difference Result 454 states and 696 transitions. [2024-11-03 12:58:23,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-03 12:58:23,067 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) Word has length 284 [2024-11-03 12:58:23,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 12:58:23,070 INFO L225 Difference]: With dead ends: 454 [2024-11-03 12:58:23,070 INFO L226 Difference]: Without dead ends: 310 [2024-11-03 12:58:23,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 577 GetRequests, 559 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2024-11-03 12:58:23,071 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 316 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 94 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2024-11-03 12:58:23,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 760 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 508 Invalid, 9 Unknown, 0 Unchecked, 40.5s Time] [2024-11-03 12:58:23,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2024-11-03 12:58:23,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 287. [2024-11-03 12:58:23,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 187 states have (on average 1.3422459893048129) internal successors, (251), 189 states have internal predecessors, (251), 92 states have call successors, (92), 7 states have call predecessors, (92), 7 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-03 12:58:23,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 435 transitions. [2024-11-03 12:58:23,111 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 435 transitions. Word has length 284 [2024-11-03 12:58:23,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 12:58:23,112 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 435 transitions. [2024-11-03 12:58:23,112 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 9 states have internal predecessors, (81), 2 states have call successors, (79), 2 states have call predecessors, (79), 4 states have return successors, (80), 2 states have call predecessors, (80), 2 states have call successors, (80) [2024-11-03 12:58:23,112 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 435 transitions. [2024-11-03 12:58:23,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2024-11-03 12:58:23,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 12:58:23,115 INFO L215 NwaCegarLoop]: trace histogram [43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-03 12:58:23,118 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Forceful destruction successful, exit code 0 [2024-11-03 12:58:23,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:58:23,316 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 12:58:23,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 12:58:23,316 INFO L85 PathProgramCache]: Analyzing trace with hash -583018048, now seen corresponding path program 1 times [2024-11-03 12:58:23,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 12:58:23,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150741103] [2024-11-03 12:58:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 12:58:23,317 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-03 12:58:23,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-03 12:58:23,318 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 12:58:23,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process [2024-11-03 12:58:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 12:58:23,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-03 12:58:23,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 12:58:26,798 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-03 12:58:26,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 12:58:27,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3612 trivial. 0 not checked. [2024-11-03 12:58:27,902 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 12:58:27,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150741103] [2024-11-03 12:58:27,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [150741103] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 12:58:27,902 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 12:58:27,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 3] imperfect sequences [] total 6 [2024-11-03 12:58:27,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685802485] [2024-11-03 12:58:27,902 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 12:58:27,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-03 12:58:27,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 12:58:27,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-03 12:58:27,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-03 12:58:27,904 INFO L87 Difference]: Start difference. First operand 287 states and 435 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (86), 2 states have call predecessors, (86), 2 states have return successors, (86), 2 states have call predecessors, (86), 2 states have call successors, (86) [2024-11-03 12:58:33,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []