/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/bitvector-regression/implicitunsignedconversion-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-10-31 19:33:12,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 19:33:12,965 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-31 19:33:12,969 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 19:33:12,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 19:33:12,988 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 19:33:12,989 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 19:33:12,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 19:33:12,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 19:33:12,993 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 19:33:12,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 19:33:12,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 19:33:12,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 19:33:12,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 19:33:12,994 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 19:33:12,994 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 19:33:12,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 19:33:12,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 19:33:12,995 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 19:33:12,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 19:33:12,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-31 19:33:12,998 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 19:33:12,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 19:33:12,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 19:33:12,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 19:33:12,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 19:33:12,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 19:33:12,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 19:33:13,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 19:33:13,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 19:33:13,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 19:33:13,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 19:33:13,000 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-31 19:33:13,000 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-31 19:33:13,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 19:33:13,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 19:33:13,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 19:33:13,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 19:33:13,003 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-31 19:33:13,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-10-31 19:33:13,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 19:33:13,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 19:33:13,248 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 19:33:13,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 19:33:13,249 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 19:33:13,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c [2024-10-31 19:33:14,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 19:33:14,553 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 19:33:14,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c [2024-10-31 19:33:14,559 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efd216114/5427870a94cd4a99a2cdb0c6eafb944a/FLAG0810c469b [2024-10-31 19:33:14,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efd216114/5427870a94cd4a99a2cdb0c6eafb944a [2024-10-31 19:33:14,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 19:33:14,966 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-10-31 19:33:14,966 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 19:33:14,966 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 19:33:14,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 19:33:14,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 07:33:14" (1/1) ... [2024-10-31 19:33:14,971 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3309da46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:14, skipping insertion in model container [2024-10-31 19:33:14,971 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 07:33:14" (1/1) ... [2024-10-31 19:33:14,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 19:33:15,108 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c[417,430] [2024-10-31 19:33:15,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 19:33:15,122 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 19:33:15,131 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/bitvector-regression/implicitunsignedconversion-1.c[417,430] [2024-10-31 19:33:15,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 19:33:15,144 INFO L204 MainTranslator]: Completed translation [2024-10-31 19:33:15,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15 WrapperNode [2024-10-31 19:33:15,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 19:33:15,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 19:33:15,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 19:33:15,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 19:33:15,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,155 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,164 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 20 [2024-10-31 19:33:15,165 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 19:33:15,165 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 19:33:15,165 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 19:33:15,165 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 19:33:15,172 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,172 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,182 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]. [2024-10-31 19:33:15,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,183 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,189 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,190 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 19:33:15,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 19:33:15,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 19:33:15,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 19:33:15,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (1/1) ... [2024-10-31 19:33:15,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 19:33:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-31 19:33:15,214 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) [2024-10-31 19:33:15,219 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 [2024-10-31 19:33:15,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 19:33:15,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 19:33:15,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 19:33:15,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-31 19:33:15,285 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 19:33:15,287 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 19:33:15,366 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-10-31 19:33:15,366 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 19:33:15,377 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 19:33:15,377 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 19:33:15,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 07:33:15 BoogieIcfgContainer [2024-10-31 19:33:15,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 19:33:15,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 19:33:15,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 19:33:15,382 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 19:33:15,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 07:33:14" (1/3) ... [2024-10-31 19:33:15,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325b5810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 07:33:15, skipping insertion in model container [2024-10-31 19:33:15,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 07:33:15" (2/3) ... [2024-10-31 19:33:15,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325b5810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 07:33:15, skipping insertion in model container [2024-10-31 19:33:15,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 07:33:15" (3/3) ... [2024-10-31 19:33:15,386 INFO L112 eAbstractionObserver]: Analyzing ICFG implicitunsignedconversion-1.c [2024-10-31 19:33:15,398 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 19:33:15,398 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 19:33:15,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 19:33:15,449 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;@7167bf21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 19:33:15,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 19:33:15,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 19:33:15,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-10-31 19:33:15,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 19:33:15,458 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-10-31 19:33:15,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 19:33:15,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 19:33:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2024-10-31 19:33:15,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-10-31 19:33:15,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [578661813] [2024-10-31 19:33:15,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 19:33:15,471 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-10-31 19:33:15,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-10-31 19:33:15,474 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) [2024-10-31 19:33:15,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-10-31 19:33:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 19:33:15,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 19:33:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 19:33:15,538 INFO L130 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2024-10-31 19:33:15,539 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 19:33:15,539 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-31 19:33:15,543 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-10-31 19:33:15,741 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 [2024-10-31 19:33:15,744 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-31 19:33:15,755 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-10-31 19:33:15,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.10 07:33:15 BoogieIcfgContainer [2024-10-31 19:33:15,757 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-31 19:33:15,758 INFO L158 Benchmark]: Toolchain (without parser) took 791.93ms. Allocated memory is still 209.7MB. Free memory was 186.4MB in the beginning and 149.5MB in the end (delta: 36.9MB). Peak memory consumption was 36.7MB. Max. memory is 8.0GB. [2024-10-31 19:33:15,758 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 209.7MB. Free memory was 185.8MB in the beginning and 185.6MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 8.0GB. [2024-10-31 19:33:15,758 INFO L158 Benchmark]: CACSL2BoogieTranslator took 179.07ms. Allocated memory is still 209.7MB. Free memory was 186.2MB in the beginning and 174.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-10-31 19:33:15,759 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.58ms. Allocated memory is still 209.7MB. Free memory was 174.1MB in the beginning and 172.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2024-10-31 19:33:15,759 INFO L158 Benchmark]: Boogie Preprocessor took 25.50ms. Allocated memory is still 209.7MB. Free memory was 172.6MB in the beginning and 171.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2024-10-31 19:33:15,759 INFO L158 Benchmark]: RCFGBuilder took 186.59ms. Allocated memory is still 209.7MB. Free memory was 171.0MB in the beginning and 161.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2024-10-31 19:33:15,760 INFO L158 Benchmark]: TraceAbstraction took 377.27ms. Allocated memory is still 209.7MB. Free memory was 161.1MB in the beginning and 149.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2024-10-31 19:33:15,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 209.7MB. Free memory was 185.8MB in the beginning and 185.6MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 179.07ms. Allocated memory is still 209.7MB. Free memory was 186.2MB in the beginning and 174.1MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.58ms. Allocated memory is still 209.7MB. Free memory was 174.1MB in the beginning and 172.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.50ms. Allocated memory is still 209.7MB. Free memory was 172.6MB in the beginning and 171.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 186.59ms. Allocated memory is still 209.7MB. Free memory was 171.0MB in the beginning and 161.6MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 377.27ms. Allocated memory is still 209.7MB. Free memory was 161.1MB in the beginning and 149.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 14]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] unsigned int plus_one = 1; [L7] int minus_one = -1; VAL [minus_one=-1, plus_one=1] [L9] COND TRUE plus_one < minus_one [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-31 19:33:15,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...