./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 64bit --witnessprinter.graph.data.programhash 3083533c764d58c30414dbf7288f818c32e2e2618f05934b32ba52cd08b21f3c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 22:32:42,354 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 22:32:42,395 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-10 22:32:42,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 22:32:42,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 22:32:42,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 22:32:42,421 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 22:32:42,422 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 22:32:42,422 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 22:32:42,422 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 22:32:42,423 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 22:32:42,423 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 22:32:42,423 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 22:32:42,424 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 22:32:42,424 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 22:32:42,424 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 22:32:42,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 22:32:42,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-10 22:32:42,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 22:32:42,425 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 22:32:42,425 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 22:32:42,429 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 22:32:42,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 22:32:42,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 22:32:42,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 22:32:42,430 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 22:32:42,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 22:32:42,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 22:32:42,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 22:32:42,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:32:42,430 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 22:32:42,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 22:32:42,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 22:32:42,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-10 22:32:42,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-10 22:32:42,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 22:32:42,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 22:32:42,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 22:32:42,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 22:32:42,434 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3083533c764d58c30414dbf7288f818c32e2e2618f05934b32ba52cd08b21f3c [2024-10-10 22:32:42,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 22:32:42,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 22:32:42,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 22:32:42,685 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 22:32:42,685 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 22:32:42,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i [2024-10-10 22:32:44,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 22:32:44,164 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 22:32:44,165 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i [2024-10-10 22:32:44,171 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/edad1376c/96031803c0c145baaa3afbf12283bb0e/FLAG8c7c11ef7 [2024-10-10 22:32:44,599 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/edad1376c/96031803c0c145baaa3afbf12283bb0e [2024-10-10 22:32:44,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 22:32:44,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 22:32:44,614 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 22:32:44,614 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 22:32:44,623 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 22:32:44,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da1a033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44, skipping insertion in model container [2024-10-10 22:32:44,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 22:32:44,821 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i[1089,1102] [2024-10-10 22:32:44,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:32:44,857 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 22:32:44,867 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i[1089,1102] [2024-10-10 22:32:44,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:32:44,890 INFO L204 MainTranslator]: Completed translation [2024-10-10 22:32:44,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44 WrapperNode [2024-10-10 22:32:44,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 22:32:44,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 22:32:44,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 22:32:44,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 22:32:44,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,927 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,942 INFO L138 Inliner]: procedures = 21, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2024-10-10 22:32:44,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 22:32:44,947 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 22:32:44,947 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 22:32:44,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 22:32:44,958 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,959 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,963 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,974 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]. [2024-10-10 22:32:44,974 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,974 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,976 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,981 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,982 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 22:32:44,988 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 22:32:44,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 22:32:44,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 22:32:44,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (1/1) ... [2024-10-10 22:32:44,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:32:45,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 22:32:45,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 22:32:45,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 22:32:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 22:32:45,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-10 22:32:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 22:32:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 22:32:45,082 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-10 22:32:45,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-10 22:32:45,136 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 22:32:45,140 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 22:32:45,232 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-10 22:32:45,233 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 22:32:45,246 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 22:32:45,246 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 22:32:45,247 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:32:45 BoogieIcfgContainer [2024-10-10 22:32:45,247 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 22:32:45,248 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 22:32:45,249 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 22:32:45,251 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 22:32:45,251 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 10:32:44" (1/3) ... [2024-10-10 22:32:45,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5812abc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:32:45, skipping insertion in model container [2024-10-10 22:32:45,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:44" (2/3) ... [2024-10-10 22:32:45,252 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5812abc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:32:45, skipping insertion in model container [2024-10-10 22:32:45,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:32:45" (3/3) ... [2024-10-10 22:32:45,253 INFO L112 eAbstractionObserver]: Analyzing ICFG 68-longjmp_12-counting-global_true.i [2024-10-10 22:32:45,265 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 22:32:45,265 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-10 22:32:45,305 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 22:32:45,311 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;@7df6af38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 22:32:45,312 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-10 22:32:45,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-10 22:32:45,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-10 22:32:45,321 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:32:45,321 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-10 22:32:45,323 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:32:45,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:32:45,328 INFO L85 PathProgramCache]: Analyzing trace with hash 2021790145, now seen corresponding path program 1 times [2024-10-10 22:32:45,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:32:45,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229373755] [2024-10-10 22:32:45,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:32:45,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:32:45,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:32:45,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:32:45,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:32:45,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229373755] [2024-10-10 22:32:45,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229373755] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:32:45,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:32:45,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:32:45,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636391863] [2024-10-10 22:32:45,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:32:45,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:32:45,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:32:45,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:32:45,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:32:45,577 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:45,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:32:45,624 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2024-10-10 22:32:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:32:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-10 22:32:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:32:45,638 INFO L225 Difference]: With dead ends: 24 [2024-10-10 22:32:45,638 INFO L226 Difference]: Without dead ends: 12 [2024-10-10 22:32:45,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:32:45,651 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 22:32:45,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 22:32:45,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-10 22:32:45,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-10 22:32:45,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-10 22:32:45,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-10-10 22:32:45,776 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 6 [2024-10-10 22:32:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:32:45,776 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-10-10 22:32:45,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:45,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-10-10 22:32:45,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-10 22:32:45,781 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:32:45,781 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-10 22:32:45,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-10 22:32:45,781 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:32:45,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:32:45,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2009724790, now seen corresponding path program 1 times [2024-10-10 22:32:45,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:32:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079873145] [2024-10-10 22:32:45,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:32:45,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:32:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:32:45,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:32:45,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-10 22:32:45,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079873145] [2024-10-10 22:32:45,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079873145] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:32:45,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:32:45,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-10 22:32:45,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078738123] [2024-10-10 22:32:45,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:32:45,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-10 22:32:45,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-10 22:32:45,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-10 22:32:45,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:32:45,883 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:32:45,934 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2024-10-10 22:32:45,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-10 22:32:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-10 22:32:45,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:32:45,935 INFO L225 Difference]: With dead ends: 12 [2024-10-10 22:32:45,935 INFO L226 Difference]: Without dead ends: 10 [2024-10-10 22:32:45,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-10 22:32:45,936 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 22:32:45,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 22:32:45,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-10 22:32:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-10 22:32:45,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-10 22:32:45,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2024-10-10 22:32:45,940 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2024-10-10 22:32:45,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:32:45,940 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2024-10-10 22:32:45,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:45,940 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2024-10-10 22:32:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-10 22:32:45,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:32:45,941 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:32:45,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-10 22:32:45,941 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:32:45,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:32:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash -128085966, now seen corresponding path program 1 times [2024-10-10 22:32:45,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-10 22:32:45,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716172482] [2024-10-10 22:32:45,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:32:45,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-10 22:32:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-10 22:32:45,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-10 22:32:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-10 22:32:45,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-10 22:32:45,974 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-10 22:32:45,975 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2024-10-10 22:32:45,976 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-10 22:32:45,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-10 22:32:45,979 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-10 22:32:45,992 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-10 22:32:45,995 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 10:32:45 BoogieIcfgContainer [2024-10-10 22:32:45,995 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-10 22:32:45,995 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-10 22:32:45,995 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-10 22:32:45,996 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-10 22:32:45,996 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:32:45" (3/4) ... [2024-10-10 22:32:45,998 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-10 22:32:45,998 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-10 22:32:45,999 INFO L158 Benchmark]: Toolchain (without parser) took 1390.32ms. Allocated memory is still 155.2MB. Free memory was 86.3MB in the beginning and 105.1MB in the end (delta: -18.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-10 22:32:45,999 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 110.3MB in the beginning and 110.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-10 22:32:46,000 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.59ms. Allocated memory is still 155.2MB. Free memory was 86.2MB in the beginning and 73.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-10 22:32:46,000 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.24ms. Allocated memory is still 155.2MB. Free memory was 73.9MB in the beginning and 126.4MB in the end (delta: -52.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2024-10-10 22:32:46,000 INFO L158 Benchmark]: Boogie Preprocessor took 40.44ms. Allocated memory is still 155.2MB. Free memory was 126.4MB in the beginning and 125.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-10 22:32:46,001 INFO L158 Benchmark]: RCFGBuilder took 259.37ms. Allocated memory is still 155.2MB. Free memory was 124.6MB in the beginning and 114.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-10 22:32:46,001 INFO L158 Benchmark]: TraceAbstraction took 746.48ms. Allocated memory is still 155.2MB. Free memory was 113.7MB in the beginning and 105.8MB in the end (delta: 7.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2024-10-10 22:32:46,001 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 105.1MB in the end (delta: 473.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-10 22:32:46,003 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 155.2MB. Free memory was 110.3MB in the beginning and 110.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.59ms. Allocated memory is still 155.2MB. Free memory was 86.2MB in the beginning and 73.9MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.24ms. Allocated memory is still 155.2MB. Free memory was 73.9MB in the beginning and 126.4MB in the end (delta: -52.5MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.44ms. Allocated memory is still 155.2MB. Free memory was 126.4MB in the beginning and 125.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 259.37ms. Allocated memory is still 155.2MB. Free memory was 124.6MB in the beginning and 114.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 746.48ms. Allocated memory is still 155.2MB. Free memory was 113.7MB in the beginning and 105.8MB in the end (delta: 7.9MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 155.2MB. Free memory was 105.5MB in the beginning and 105.1MB in the end (delta: 473.9kB). 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 - UnprovableResult [Line: 50]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of longjmp at line 50. Possible FailurePath: [L44] jmp_buf my_jump_buffer; [L45] int count = 0; [L55] COND TRUE count < 5 [L56] CALL foo() [L48] CALL __VERIFIER_assert(count >= 0 && count < 5) VAL [\old(cond)=1, count=0] [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, count=0] [L48] RET __VERIFIER_assert(count >= 0 && count < 5) VAL [count=0] [L49] count++ VAL [count=1] [L50] longjmp(my_jump_buffer, 1) VAL [count=1] - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2024-10-10 22:32:46,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 64bit --witnessprinter.graph.data.programhash 3083533c764d58c30414dbf7288f818c32e2e2618f05934b32ba52cd08b21f3c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-10 22:32:48,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-10 22:32:48,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-10-10 22:32:48,187 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-10 22:32:48,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-10 22:32:48,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-10 22:32:48,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-10 22:32:48,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-10 22:32:48,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-10 22:32:48,240 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-10 22:32:48,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-10 22:32:48,240 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-10 22:32:48,241 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-10 22:32:48,241 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-10 22:32:48,241 INFO L153 SettingsManager]: * Use SBE=true [2024-10-10 22:32:48,241 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-10 22:32:48,242 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-10 22:32:48,242 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-10 22:32:48,242 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-10 22:32:48,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-10 22:32:48,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-10 22:32:48,248 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-10 22:32:48,249 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-10 22:32:48,249 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-10 22:32:48,249 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-10 22:32:48,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-10 22:32:48,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-10 22:32:48,250 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-10 22:32:48,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-10 22:32:48,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-10 22:32:48,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-10 22:32:48,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:32:48,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-10 22:32:48,251 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-10 22:32:48,251 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-10 22:32:48,251 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-10 22:32:48,251 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-10 22:32:48,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-10 22:32:48,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-10 22:32:48,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-10 22:32:48,258 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-10 22:32:48,258 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-10 22:32:48,258 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3083533c764d58c30414dbf7288f818c32e2e2618f05934b32ba52cd08b21f3c [2024-10-10 22:32:48,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-10 22:32:48,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-10 22:32:48,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-10 22:32:48,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-10 22:32:48,850 INFO L274 PluginConnector]: CDTParser initialized [2024-10-10 22:32:48,852 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i [2024-10-10 22:32:50,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-10 22:32:50,771 INFO L384 CDTParser]: Found 1 translation units. [2024-10-10 22:32:50,773 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i [2024-10-10 22:32:50,780 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9fd809184/4026a5f610fa48bc8b730ab1b0acb69b/FLAGdee0747f6 [2024-10-10 22:32:50,793 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/9fd809184/4026a5f610fa48bc8b730ab1b0acb69b [2024-10-10 22:32:50,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-10 22:32:50,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-10 22:32:50,799 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-10 22:32:50,799 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-10 22:32:50,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-10 22:32:50,803 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:32:50" (1/1) ... [2024-10-10 22:32:50,804 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e599276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:50, skipping insertion in model container [2024-10-10 22:32:50,804 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 10:32:50" (1/1) ... [2024-10-10 22:32:50,820 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-10 22:32:50,971 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i[1089,1102] [2024-10-10 22:32:50,988 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:32:51,006 INFO L200 MainTranslator]: Completed pre-run [2024-10-10 22:32:51,018 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/longjmp/68-longjmp_12-counting-global_true.i[1089,1102] [2024-10-10 22:32:51,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-10 22:32:51,038 INFO L204 MainTranslator]: Completed translation [2024-10-10 22:32:51,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51 WrapperNode [2024-10-10 22:32:51,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-10 22:32:51,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-10 22:32:51,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-10 22:32:51,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-10 22:32:51,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,068 INFO L138 Inliner]: procedures = 21, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2024-10-10 22:32:51,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-10 22:32:51,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-10 22:32:51,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-10 22:32:51,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-10 22:32:51,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,079 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,087 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]. [2024-10-10 22:32:51,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,104 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-10 22:32:51,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-10 22:32:51,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-10 22:32:51,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-10 22:32:51,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (1/1) ... [2024-10-10 22:32:51,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-10 22:32:51,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-10 22:32:51,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-10 22:32:51,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-10 22:32:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-10 22:32:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-10 22:32:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-10 22:32:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-10 22:32:51,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-10 22:32:51,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-10 22:32:51,251 INFO L238 CfgBuilder]: Building ICFG [2024-10-10 22:32:51,252 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-10 22:32:51,370 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-10-10 22:32:51,370 INFO L287 CfgBuilder]: Performing block encoding [2024-10-10 22:32:51,401 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-10 22:32:51,402 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-10 22:32:51,402 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:32:51 BoogieIcfgContainer [2024-10-10 22:32:51,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-10 22:32:51,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-10 22:32:51,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-10 22:32:51,407 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-10 22:32:51,407 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 10:32:50" (1/3) ... [2024-10-10 22:32:51,408 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3f802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:32:51, skipping insertion in model container [2024-10-10 22:32:51,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 10:32:51" (2/3) ... [2024-10-10 22:32:51,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3f802c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 10:32:51, skipping insertion in model container [2024-10-10 22:32:51,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:32:51" (3/3) ... [2024-10-10 22:32:51,410 INFO L112 eAbstractionObserver]: Analyzing ICFG 68-longjmp_12-counting-global_true.i [2024-10-10 22:32:51,422 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-10 22:32:51,423 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-10 22:32:51,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-10 22:32:51,476 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;@684ad7b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-10 22:32:51,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-10 22:32:51,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-10 22:32:51,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-10 22:32:51,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:32:51,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-10 22:32:51,486 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:32:51,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:32:51,491 INFO L85 PathProgramCache]: Analyzing trace with hash 2021790145, now seen corresponding path program 1 times [2024-10-10 22:32:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-10 22:32:51,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273472128] [2024-10-10 22:32:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:32:51,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-10 22:32:51,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-10 22:32:51,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-10 22:32:51,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-10 22:32:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:32:51,579 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-10 22:32:51,582 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 22:32:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:32:51,610 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 22:32:51,611 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-10 22:32:51,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273472128] [2024-10-10 22:32:51,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273472128] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:32:51,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:32:51,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-10 22:32:51,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097349223] [2024-10-10 22:32:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:32:51,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-10 22:32:51,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-10 22:32:51,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-10 22:32:51,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:32:51,633 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 11 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:51,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:32:51,656 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2024-10-10 22:32:51,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-10 22:32:51,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-10 22:32:51,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:32:51,662 INFO L225 Difference]: With dead ends: 24 [2024-10-10 22:32:51,662 INFO L226 Difference]: Without dead ends: 12 [2024-10-10 22:32:51,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-10 22:32:51,666 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 22:32:51,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 8 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 22:32:51,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-10-10 22:32:51,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-10-10 22:32:51,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-10 22:32:51,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2024-10-10 22:32:51,690 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 6 [2024-10-10 22:32:51,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:32:51,690 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2024-10-10 22:32:51,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:51,691 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2024-10-10 22:32:51,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-10 22:32:51,691 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:32:51,691 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-10 22:32:51,700 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-10-10 22:32:51,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-10 22:32:51,893 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:32:51,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:32:51,894 INFO L85 PathProgramCache]: Analyzing trace with hash 2009724790, now seen corresponding path program 1 times [2024-10-10 22:32:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-10 22:32:51,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671390375] [2024-10-10 22:32:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:32:51,895 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-10 22:32:51,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-10 22:32:51,900 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-10 22:32:51,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-10 22:32:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-10 22:32:51,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-10 22:32:51,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-10 22:32:51,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-10 22:32:51,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-10 22:32:51,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-10 22:32:51,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671390375] [2024-10-10 22:32:51,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671390375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-10 22:32:51,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-10 22:32:51,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-10 22:32:51,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578798592] [2024-10-10 22:32:51,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-10 22:32:52,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-10 22:32:52,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-10 22:32:52,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-10 22:32:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-10 22:32:52,002 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:52,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-10 22:32:52,057 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2024-10-10 22:32:52,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-10 22:32:52,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-10 22:32:52,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-10 22:32:52,058 INFO L225 Difference]: With dead ends: 12 [2024-10-10 22:32:52,058 INFO L226 Difference]: Without dead ends: 10 [2024-10-10 22:32:52,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-10 22:32:52,060 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-10 22:32:52,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-10 22:32:52,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-10-10 22:32:52,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-10-10 22:32:52,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-10 22:32:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2024-10-10 22:32:52,065 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2024-10-10 22:32:52,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-10 22:32:52,065 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2024-10-10 22:32:52,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.0) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-10 22:32:52,068 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2024-10-10 22:32:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-10 22:32:52,068 INFO L207 NwaCegarLoop]: Found error trace [2024-10-10 22:32:52,068 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-10 22:32:52,072 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-10-10 22:32:52,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-10 22:32:52,269 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN === [ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-10 22:32:52,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-10 22:32:52,270 INFO L85 PathProgramCache]: Analyzing trace with hash -128085966, now seen corresponding path program 1 times [2024-10-10 22:32:52,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-10 22:32:52,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1874556861] [2024-10-10 22:32:52,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-10 22:32:52,270 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-10 22:32:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-10 22:32:52,273 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-10 22:32:52,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-10 22:32:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-10 22:32:52,329 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-10 22:32:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-10 22:32:52,376 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-10 22:32:52,376 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-10 22:32:52,377 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNKNOWN (1 of 2 remaining) [2024-10-10 22:32:52,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-10-10 22:32:52,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-10 22:32:52,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-10 22:32:52,584 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-10 22:32:52,596 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-10 22:32:52,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 10:32:52 BoogieIcfgContainer [2024-10-10 22:32:52,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-10 22:32:52,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-10 22:32:52,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-10 22:32:52,599 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-10 22:32:52,600 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 10:32:51" (3/4) ... [2024-10-10 22:32:52,601 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-10 22:32:52,602 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-10 22:32:52,603 INFO L158 Benchmark]: Toolchain (without parser) took 1806.47ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 33.7MB in the beginning and 95.7MB in the end (delta: -62.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-10 22:32:52,603 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-10 22:32:52,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.70ms. Allocated memory is still 71.3MB. Free memory was 33.5MB in the beginning and 42.4MB in the end (delta: -9.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-10-10 22:32:52,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.47ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 40.9MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-10 22:32:52,604 INFO L158 Benchmark]: Boogie Preprocessor took 38.76ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 39.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-10 22:32:52,605 INFO L158 Benchmark]: RCFGBuilder took 293.71ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 39.1MB in the beginning and 96.9MB in the end (delta: -57.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-10 22:32:52,605 INFO L158 Benchmark]: TraceAbstraction took 1194.90ms. Allocated memory is still 119.5MB. Free memory was 96.4MB in the beginning and 95.7MB in the end (delta: 670.1kB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2024-10-10 22:32:52,605 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 119.5MB. Free memory is still 95.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-10 22:32:52,607 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 71.3MB. Free memory was 47.9MB in the beginning and 47.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.70ms. Allocated memory is still 71.3MB. Free memory was 33.5MB in the beginning and 42.4MB in the end (delta: -9.0MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.47ms. Allocated memory is still 71.3MB. Free memory was 42.4MB in the beginning and 40.9MB in the end (delta: 1.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.76ms. Allocated memory is still 71.3MB. Free memory was 40.9MB in the beginning and 39.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.71ms. Allocated memory was 71.3MB in the beginning and 119.5MB in the end (delta: 48.2MB). Free memory was 39.1MB in the beginning and 96.9MB in the end (delta: -57.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1194.90ms. Allocated memory is still 119.5MB. Free memory was 96.4MB in the beginning and 95.7MB in the end (delta: 670.1kB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 119.5MB. Free memory is still 95.7MB. There was no memory consumed. 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 - UnprovableResult [Line: 50]: Unable to prove that unknown kind of specification holds Unable to prove that unknown kind of specification holds Reason: overapproximation of longjmp at line 50. Possible FailurePath: [L44] jmp_buf my_jump_buffer; [L45] int count = 0; [L55] COND TRUE count < 5 [L56] CALL foo() [L48] CALL __VERIFIER_assert(count >= 0 && count < 5) VAL [\old(cond)=1, count=0] [L19] COND FALSE !(!(cond)) VAL [\old(cond)=1, count=0] [L48] RET __VERIFIER_assert(count >= 0 && count < 5) VAL [count=0] [L49] count++ VAL [count=1] [L50] longjmp(my_jump_buffer, 1) VAL [count=1] - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 2 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces [2024-10-10 22:32:52,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 Result: UNKNOWN: Overapproximated counterexample