/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 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-64.i -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-03 01:01:00,367 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-03 01:01:00,438 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 01:01:00,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-03 01:01:00,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-03 01:01:00,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-03 01:01:00,479 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-03 01:01:00,479 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-03 01:01:00,480 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-03 01:01:00,480 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-03 01:01:00,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-03 01:01:00,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-03 01:01:00,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-03 01:01:00,482 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-03 01:01:00,482 INFO L153 SettingsManager]: * Use SBE=true [2024-11-03 01:01:00,483 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-03 01:01:00,483 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-03 01:01:00,483 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-03 01:01:00,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-03 01:01:00,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-03 01:01:00,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-03 01:01:00,488 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-03 01:01:00,488 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-03 01:01:00,488 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-03 01:01:00,488 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-03 01:01:00,488 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-03 01:01:00,489 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-03 01:01:00,489 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-03 01:01:00,489 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-03 01:01:00,491 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-03 01:01:00,492 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-03 01:01:00,492 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-03 01:01:00,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-03 01:01:00,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-03 01:01:00,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:01:00,492 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-03 01:01:00,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-03 01:01:00,493 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-03 01:01:00,493 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-03 01:01:00,493 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:00,493 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-03 01:01:00,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-03 01:01:00,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-03 01:01:00,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-03 01:01:00,494 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:00,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-03 01:01:00,700 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-03 01:01:00,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-03 01:01:00,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-03 01:01:00,704 INFO L274 PluginConnector]: CDTParser initialized [2024-11-03 01:01:00,705 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-64.i [2024-11-03 01:01:02,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-03 01:01:02,318 INFO L384 CDTParser]: Found 1 translation units. [2024-11-03 01:01:02,319 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount100_file-64.i [2024-11-03 01:01:02,335 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6f27d68/fde73b1820bd4e40ac4bb14436a3bd8a/FLAG71822ab5e [2024-11-03 01:01:02,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3b6f27d68/fde73b1820bd4e40ac4bb14436a3bd8a [2024-11-03 01:01:02,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-03 01:01:02,660 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-03 01:01:02,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-03 01:01:02,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-03 01:01:02,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-03 01:01:02,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:01:02" (1/1) ... [2024-11-03 01:01:02,668 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51643bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:02, skipping insertion in model container [2024-11-03 01:01:02,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:01:02" (1/1) ... [2024-11-03 01:01:02,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-03 01:01:02,837 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-64.i[916,929] [2024-11-03 01:01:02,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:01:02,923 INFO L200 MainTranslator]: Completed pre-run [2024-11-03 01:01:02,935 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-64.i[916,929] [2024-11-03 01:01:02,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-03 01:01:03,008 INFO L204 MainTranslator]: Completed translation [2024-11-03 01:01:03,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03 WrapperNode [2024-11-03 01:01:03,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-03 01:01:03,013 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-03 01:01:03,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-03 01:01:03,014 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-03 01:01:03,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,043 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,081 INFO L138 Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 212 [2024-11-03 01:01:03,081 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-03 01:01:03,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-03 01:01:03,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-03 01:01:03,082 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-03 01:01:03,090 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,097 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,115 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 01:01:03,115 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,146 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-03 01:01:03,150 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-03 01:01:03,151 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-03 01:01:03,151 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-03 01:01:03,151 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (1/1) ... [2024-11-03 01:01:03,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-03 01:01:03,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-03 01:01:03,186 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 01:01:03,193 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 01:01:03,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-03 01:01:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-03 01:01:03,219 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-03 01:01:03,219 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-03 01:01:03,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-03 01:01:03,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-03 01:01:03,292 INFO L238 CfgBuilder]: Building ICFG [2024-11-03 01:01:03,294 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-03 01:01:12,156 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-03 01:01:12,156 INFO L287 CfgBuilder]: Performing block encoding [2024-11-03 01:01:12,172 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-03 01:01:12,172 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-03 01:01:12,173 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:01:12 BoogieIcfgContainer [2024-11-03 01:01:12,173 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-03 01:01:12,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-03 01:01:12,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-03 01:01:12,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-03 01:01:12,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:01:02" (1/3) ... [2024-11-03 01:01:12,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1c1480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:01:12, skipping insertion in model container [2024-11-03 01:01:12,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:01:03" (2/3) ... [2024-11-03 01:01:12,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c1c1480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:01:12, skipping insertion in model container [2024-11-03 01:01:12,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:01:12" (3/3) ... [2024-11-03 01:01:12,182 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-64.i [2024-11-03 01:01:12,194 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-03 01:01:12,198 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-03 01:01:12,277 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-03 01:01:12,309 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;@7afb3dc8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-03 01:01:12,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-03 01:01:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 89 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 58 states have internal predecessors, (80), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-03 01:01:12,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-03 01:01:12,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:01:12,330 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:12,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:01:12,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:01:12,334 INFO L85 PathProgramCache]: Analyzing trace with hash 54138118, now seen corresponding path program 1 times [2024-11-03 01:01:12,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:01:12,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [371057742] [2024-11-03 01:01:12,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:01:12,342 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:12,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:01:12,347 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:01:12,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-03 01:01:12,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:01:13,001 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-03 01:01:13,014 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:01:13,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-03 01:01:13,050 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:01:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 1568 trivial. 0 not checked. [2024-11-03 01:01:14,037 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:01:14,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [371057742] [2024-11-03 01:01:14,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [371057742] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-03 01:01:14,039 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-03 01:01:14,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-03 01:01:14,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179963960] [2024-11-03 01:01:14,041 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-03 01:01:14,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-03 01:01:14,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:01:14,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-03 01:01:14,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-03 01:01:14,073 INFO L87 Difference]: Start difference. First operand has 89 states, 57 states have (on average 1.4035087719298245) internal successors, (80), 58 states have internal predecessors, (80), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-03 01:01:14,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:01:14,097 INFO L93 Difference]: Finished difference Result 171 states and 299 transitions. [2024-11-03 01:01:14,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-03 01:01:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 187 [2024-11-03 01:01:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:01:14,104 INFO L225 Difference]: With dead ends: 171 [2024-11-03 01:01:14,104 INFO L226 Difference]: Without dead ends: 85 [2024-11-03 01:01:14,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 372 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 01:01:14,109 INFO L432 NwaCegarLoop]: 131 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, 131 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 01:01:14,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-03 01:01:14,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-03 01:01:14,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-03 01:01:14,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 54 states have (on average 1.3518518518518519) internal successors, (73), 54 states have internal predecessors, (73), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-03 01:01:14,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 131 transitions. [2024-11-03 01:01:14,142 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 131 transitions. Word has length 187 [2024-11-03 01:01:14,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:01:14,143 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 131 transitions. [2024-11-03 01:01:14,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 1 states have call successors, (29), 1 states have call predecessors, (29), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2024-11-03 01:01:14,143 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2024-11-03 01:01:14,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-03 01:01:14,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:01:14,146 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:14,157 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-03 01:01:14,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:14,348 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:01:14,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:01:14,349 INFO L85 PathProgramCache]: Analyzing trace with hash 871139064, now seen corresponding path program 1 times [2024-11-03 01:01:14,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:01:14,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1665017224] [2024-11-03 01:01:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:01:14,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:14,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:01:14,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:01:14,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-03 01:01:16,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:01:16,179 INFO L255 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-03 01:01:16,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:01:18,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 813 proven. 42 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-11-03 01:01:18,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:01:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 66 proven. 18 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2024-11-03 01:01:21,374 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-03 01:01:21,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1665017224] [2024-11-03 01:01:21,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1665017224] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-03 01:01:21,375 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-03 01:01:21,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13 [2024-11-03 01:01:21,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42547875] [2024-11-03 01:01:21,375 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-03 01:01:21,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-03 01:01:21,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-03 01:01:21,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-03 01:01:21,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-11-03 01:01:21,378 INFO L87 Difference]: Start difference. First operand 85 states and 131 transitions. Second operand has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 4 states have call successors, (38), 3 states have call predecessors, (38), 6 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-03 01:01:29,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 01:01:33,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 01:01:37,790 WARN L539 Checker$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 01:01:41,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 01:01:45,808 WARN L539 Checker$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 01:01:49,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-03 01:01:53,821 WARN L539 Checker$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 [0] [2024-11-03 01:01:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-03 01:01:53,828 INFO L93 Difference]: Finished difference Result 183 states and 272 transitions. [2024-11-03 01:01:53,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-03 01:01:53,896 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 4 states have call successors, (38), 3 states have call predecessors, (38), 6 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) Word has length 187 [2024-11-03 01:01:53,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-03 01:01:53,899 INFO L225 Difference]: With dead ends: 183 [2024-11-03 01:01:53,899 INFO L226 Difference]: Without dead ends: 101 [2024-11-03 01:01:53,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2024-11-03 01:01:53,904 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 86 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 7 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.2s IncrementalHoareTripleChecker+Time [2024-11-03 01:01:53,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 454 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 345 Invalid, 7 Unknown, 0 Unchecked, 31.2s Time] [2024-11-03 01:01:53,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-03 01:01:53,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 97. [2024-11-03 01:01:53,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 63 states have internal predecessors, (81), 29 states have call successors, (29), 4 states have call predecessors, (29), 4 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-03 01:01:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2024-11-03 01:01:53,925 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 187 [2024-11-03 01:01:53,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-03 01:01:53,933 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2024-11-03 01:01:53,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.230769230769231) internal successors, (68), 13 states have internal predecessors, (68), 4 states have call successors, (38), 3 states have call predecessors, (38), 6 states have return successors, (39), 4 states have call predecessors, (39), 4 states have call successors, (39) [2024-11-03 01:01:53,933 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2024-11-03 01:01:53,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-03 01:01:53,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-03 01:01:53,935 INFO L215 NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:01:53,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-03 01:01:54,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:54,136 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-03 01:01:54,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-03 01:01:54,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1418717166, now seen corresponding path program 1 times [2024-11-03 01:01:54,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-03 01:01:54,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457312599] [2024-11-03 01:01:54,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-03 01:01:54,137 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-03 01:01:54,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-03 01:01:54,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-03 01:01:54,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-03 01:01:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-03 01:01:58,211 INFO L255 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-03 01:01:58,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-03 01:02:10,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1624 backedges. 926 proven. 138 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2024-11-03 01:02:10,101 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-03 01:02:19,373 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 24) c_~var_1_20~0))) (let ((.cse3 (bvadd c_~last_1_var_1_23~0 .cse2)) (.cse4 ((_ sign_extend 24) c_~var_1_21~0))) (or (exists ((~var_1_21~0 (_ BitVec 8))) (let ((.cse1 ((_ sign_extend 24) ~var_1_21~0))) (and (exists ((~var_1_22~0 (_ BitVec 8))) (let ((.cse0 ((_ sign_extend 24) ~var_1_22~0))) (and (bvsle .cse0 (_ bv63 32)) (bvsle ((_ zero_extend 24) ~var_1_22~0) ((_ sign_extend 24) ((_ extract 7 0) (bvadd (bvneg (bvadd .cse1 (bvneg .cse0))) .cse2))))))) (bvule .cse3 .cse1) (bvsge .cse1 (_ bv63 32))))) (forall ((~var_1_22~0 (_ BitVec 8))) (let ((.cse5 ((_ sign_extend 24) ~var_1_22~0))) (or (not (bvsle ((_ zero_extend 24) ~var_1_22~0) ((_ sign_extend 24) ((_ extract 7 0) (bvadd .cse2 (bvneg (bvadd .cse4 (bvneg .cse5)))))))) (not (bvsle .cse5 (_ bv63 32)))))) (not (bvule .cse3 .cse4)) (let ((.cse6 (bvsge .cse4 (_ bv63 32)))) (and (or (not .cse6) (not (= |c_assume_abort_if_not_#in~cond| (_ bv1 32)))) (or (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32))) .cse6)))))) is different from true