./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test08.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test08.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 55f41c66c50792cda5d5bbe104482e2cd600942b05623220f52aeb9f6286617d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 00:44:04,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 00:44:04,141 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 00:44:04,147 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 00:44:04,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 00:44:04,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 00:44:04,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 00:44:04,174 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 00:44:04,174 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 00:44:04,175 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 00:44:04,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 00:44:04,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 00:44:04,176 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 00:44:04,177 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 00:44:04,178 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 00:44:04,178 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 00:44:04,178 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 00:44:04,178 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 00:44:04,179 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 00:44:04,179 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 00:44:04,179 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 00:44:04,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 00:44:04,182 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 00:44:04,182 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 00:44:04,182 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 00:44:04,183 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 00:44:04,183 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 00:44:04,183 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 00:44:04,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 00:44:04,183 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 00:44:04,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 00:44:04,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 00:44:04,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 00:44:04,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 00:44:04,184 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 00:44:04,184 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 00:44:04,185 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 00:44:04,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 00:44:04,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 00:44:04,185 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 00:44:04,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 00:44:04,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 00:44:04,186 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55f41c66c50792cda5d5bbe104482e2cd600942b05623220f52aeb9f6286617d [2024-11-22 00:44:04,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 00:44:04,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 00:44:04,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 00:44:04,437 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 00:44:04,437 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 00:44:04,438 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test08.c [2024-11-22 00:44:05,666 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 00:44:05,810 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 00:44:05,811 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test08.c [2024-11-22 00:44:05,816 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2822fa435/9dd214dc1be3421cb8ec4f18ac5f2603/FLAGfb4d96770 [2024-11-22 00:44:06,237 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2822fa435/9dd214dc1be3421cb8ec4f18ac5f2603 [2024-11-22 00:44:06,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 00:44:06,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 00:44:06,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 00:44:06,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 00:44:06,247 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 00:44:06,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,249 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e37efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06, skipping insertion in model container [2024-11-22 00:44:06,250 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,264 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 00:44:06,402 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test08.c[578,591] [2024-11-22 00:44:06,408 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 00:44:06,417 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 00:44:06,430 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test08.c[578,591] [2024-11-22 00:44:06,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 00:44:06,445 INFO L204 MainTranslator]: Completed translation [2024-11-22 00:44:06,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06 WrapperNode [2024-11-22 00:44:06,445 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 00:44:06,446 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 00:44:06,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 00:44:06,447 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 00:44:06,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,458 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,472 INFO L138 Inliner]: procedures = 12, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 55 [2024-11-22 00:44:06,473 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 00:44:06,474 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 00:44:06,474 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 00:44:06,474 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 00:44:06,481 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,496 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2]. The 4 writes are split as follows [0, 4]. [2024-11-22 00:44:06,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,500 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,502 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,502 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 00:44:06,506 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 00:44:06,506 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 00:44:06,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 00:44:06,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (1/1) ... [2024-11-22 00:44:06,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 00:44:06,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 00:44:06,534 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) [2024-11-22 00:44:06,537 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 [2024-11-22 00:44:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 00:44:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 00:44:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 00:44:06,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 00:44:06,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 00:44:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 00:44:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 00:44:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 00:44:06,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 00:44:06,621 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 00:44:06,622 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 00:44:06,713 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-22 00:44:06,713 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 00:44:06,722 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 00:44:06,722 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 00:44:06,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:06 BoogieIcfgContainer [2024-11-22 00:44:06,722 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 00:44:06,724 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 00:44:06,724 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 00:44:06,726 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 00:44:06,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:44:06" (1/3) ... [2024-11-22 00:44:06,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66382818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:44:06, skipping insertion in model container [2024-11-22 00:44:06,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:44:06" (2/3) ... [2024-11-22 00:44:06,727 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66382818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:44:06, skipping insertion in model container [2024-11-22 00:44:06,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:06" (3/3) ... [2024-11-22 00:44:06,728 INFO L112 eAbstractionObserver]: Analyzing ICFG test08.c [2024-11-22 00:44:06,740 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 00:44:06,740 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 00:44:06,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 00:44:06,788 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;@202dcf6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 00:44:06,788 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 00:44:06,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-22 00:44:06,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-22 00:44:06,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 00:44:06,795 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-22 00:44:06,796 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 00:44:06,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 00:44:06,799 INFO L85 PathProgramCache]: Analyzing trace with hash 889508715, now seen corresponding path program 1 times [2024-11-22 00:44:06,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 00:44:06,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509634698] [2024-11-22 00:44:06,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 00:44:06,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 00:44:06,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 00:44:06,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-22 00:44:06,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-22 00:44:06,976 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-22 00:44:06,977 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-22 00:44:06,978 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 00:44:06,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 00:44:06,982 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-22 00:44:06,997 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 00:44:06,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:44:06 BoogieIcfgContainer [2024-11-22 00:44:06,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 00:44:06,999 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 00:44:07,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 00:44:07,000 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 00:44:07,000 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:44:06" (3/4) ... [2024-11-22 00:44:07,000 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-22 00:44:07,029 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 00:44:07,029 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 00:44:07,030 INFO L158 Benchmark]: Toolchain (without parser) took 789.62ms. Allocated memory is still 151.0MB. Free memory was 112.4MB in the beginning and 66.3MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,031 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 00:44:07,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.47ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 98.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.80ms. Allocated memory is still 151.0MB. Free memory was 98.9MB in the beginning and 97.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,035 INFO L158 Benchmark]: Boogie Preprocessor took 31.06ms. Allocated memory is still 151.0MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,035 INFO L158 Benchmark]: RCFGBuilder took 216.54ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 85.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,035 INFO L158 Benchmark]: TraceAbstraction took 275.25ms. Allocated memory is still 151.0MB. Free memory was 84.2MB in the beginning and 68.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,036 INFO L158 Benchmark]: Witness Printer took 29.89ms. Allocated memory is still 151.0MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 00:44:07,037 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 151.0MB. Free memory is still 113.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.47ms. Allocated memory is still 151.0MB. Free memory was 111.9MB in the beginning and 98.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.80ms. Allocated memory is still 151.0MB. Free memory was 98.9MB in the beginning and 97.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.06ms. Allocated memory is still 151.0MB. Free memory was 97.8MB in the beginning and 95.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 216.54ms. Allocated memory is still 151.0MB. Free memory was 95.7MB in the beginning and 85.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 275.25ms. Allocated memory is still 151.0MB. Free memory was 84.2MB in the beginning and 68.4MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 29.89ms. Allocated memory is still 151.0MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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: 38]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] int a, b; [L6] int a, b; [L6] int a, b; [L6] int a, b; [L7] int *p1, *p2; VAL [a={4:0}, b={5:0}, p1={0:0}, p2={0:0}] [L21] p1 = &a [L22] p2 = &b [L24] b = 1 [L25] a = 5 [L27] EXPR \read(a) [L27] a-- [L27] a-- [L29] CALL, EXPR f() [L10] EXPR \read(*p1) [L10] EXPR \read(*p2) [L10] EXPR \read(a) [L10] int v = *p1 + *p2 - a; [L11] COND TRUE v == 1 [L12] p1 = p2 [L13] return v; VAL [\result=1, a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] [L29] RET, EXPR f() [L29] a = f() [L31] EXPR \read(a) VAL [a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] [L31] COND TRUE a && p1 == p2 [L38] reach_error() VAL [a={4:0}, b={5:0}, p1={5:0}, p2={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=10occurred 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, 6 NumberOfCodeBlocks, 6 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! [2024-11-22 00:44:07,060 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE