./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/test22-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-regression/test22-3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d801f0525ca26a676000831cf03fb7a7e79d5c4d235bd41da197ed6559b3bbff --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 12:59:34,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 12:59:34,780 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 12:59:34,784 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 12:59:34,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 12:59:34,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 12:59:34,808 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 12:59:34,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 12:59:34,809 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 12:59:34,809 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 12:59:34,810 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 12:59:34,810 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 12:59:34,811 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 12:59:34,811 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 12:59:34,811 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 12:59:34,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 12:59:34,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 12:59:34,813 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 12:59:34,813 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 12:59:34,813 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 12:59:34,817 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 12:59:34,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 12:59:34,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 12:59:34,818 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 12:59:34,818 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 12:59:34,819 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 12:59:34,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 12:59:34,819 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 12:59:34,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 12:59:34,819 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 12:59:34,820 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 12:59:34,820 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 12:59:34,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 12:59:34,820 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 12:59:34,821 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 12:59:34,821 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 12:59:34,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 12:59:34,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 12:59:34,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 12:59:34,823 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 12:59:34,824 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 12:59:34,824 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 12:59:34,824 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d801f0525ca26a676000831cf03fb7a7e79d5c4d235bd41da197ed6559b3bbff [2024-11-18 12:59:35,081 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 12:59:35,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 12:59:35,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 12:59:35,112 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 12:59:35,113 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 12:59:35,114 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test22-3.c [2024-11-18 12:59:36,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 12:59:36,774 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 12:59:36,775 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-3.c [2024-11-18 12:59:36,785 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a343ce6f5/b8cd422db8a4448585d2cb444537f3c3/FLAGd849425e8 [2024-11-18 12:59:36,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a343ce6f5/b8cd422db8a4448585d2cb444537f3c3 [2024-11-18 12:59:36,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 12:59:36,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 12:59:36,809 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 12:59:36,810 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 12:59:36,817 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 12:59:36,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:36" (1/1) ... [2024-11-18 12:59:36,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ea43609 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:36, skipping insertion in model container [2024-11-18 12:59:36,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:36" (1/1) ... [2024-11-18 12:59:36,846 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 12:59:37,029 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-3.c[1204,1217] [2024-11-18 12:59:37,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 12:59:37,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 12:59:37,086 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test22-3.c[1204,1217] [2024-11-18 12:59:37,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 12:59:37,130 INFO L204 MainTranslator]: Completed translation [2024-11-18 12:59:37,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37 WrapperNode [2024-11-18 12:59:37,135 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 12:59:37,136 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 12:59:37,137 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 12:59:37,137 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 12:59:37,143 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,171 INFO L138 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2024-11-18 12:59:37,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 12:59:37,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 12:59:37,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 12:59:37,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 12:59:37,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,184 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,196 INFO L175 MemorySlicer]: Split 16 memory accesses to 2 slices as follows [2, 14]. 88 percent of accesses are in the largest equivalence class. The 6 initializations are split as follows [2, 4]. The 4 writes are split as follows [0, 4]. [2024-11-18 12:59:37,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,202 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,205 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,206 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,208 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 12:59:37,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 12:59:37,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 12:59:37,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 12:59:37,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (1/1) ... [2024-11-18 12:59:37,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 12:59:37,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:59:37,255 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 12:59:37,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 12:59:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 12:59:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2024-11-18 12:59:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2024-11-18 12:59:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 12:59:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 12:59:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 12:59:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 12:59:37,377 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 12:59:37,379 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 12:59:37,552 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-18 12:59:37,552 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 12:59:37,564 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 12:59:37,565 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 12:59:37,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:37 BoogieIcfgContainer [2024-11-18 12:59:37,565 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 12:59:37,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 12:59:37,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 12:59:37,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 12:59:37,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:59:36" (1/3) ... [2024-11-18 12:59:37,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3292d9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:37, skipping insertion in model container [2024-11-18 12:59:37,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:37" (2/3) ... [2024-11-18 12:59:37,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3292d9c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:37, skipping insertion in model container [2024-11-18 12:59:37,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:37" (3/3) ... [2024-11-18 12:59:37,575 INFO L112 eAbstractionObserver]: Analyzing ICFG test22-3.c [2024-11-18 12:59:37,594 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 12:59:37,594 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 12:59:37,643 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 12:59:37,649 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;@677f0b2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 12:59:37,649 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 12:59:37,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 12:59:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-18 12:59:37,661 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:37,661 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:37,662 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:37,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:37,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1119319228, now seen corresponding path program 1 times [2024-11-18 12:59:37,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:37,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958450533] [2024-11-18 12:59:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:37,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:37,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:59:37,968 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 12:59:37,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 12:59:37,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958450533] [2024-11-18 12:59:37,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958450533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 12:59:37,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348521305] [2024-11-18 12:59:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:37,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 12:59:37,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 12:59:37,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 12:59:37,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 12:59:38,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 12:59:38,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 12:59:38,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 12:59:38,149 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-18 12:59:38,151 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 12:59:38,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348521305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 12:59:38,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 12:59:38,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 12:59:38,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370931606] [2024-11-18 12:59:38,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 12:59:38,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 12:59:38,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 12:59:38,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 12:59:38,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 12:59:38,183 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 12:59:38,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 12:59:38,197 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2024-11-18 12:59:38,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 12:59:38,199 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 37 [2024-11-18 12:59:38,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 12:59:38,204 INFO L225 Difference]: With dead ends: 63 [2024-11-18 12:59:38,204 INFO L226 Difference]: Without dead ends: 29 [2024-11-18 12:59:38,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 12:59:38,213 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 12:59:38,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 12:59:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-18 12:59:38,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-18 12:59:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-18 12:59:38,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-18 12:59:38,245 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 37 [2024-11-18 12:59:38,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 12:59:38,246 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-18 12:59:38,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.0) internal successors, (22), 2 states have internal predecessors, (22), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 12:59:38,246 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-18 12:59:38,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-18 12:59:38,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 12:59:38,248 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 12:59:38,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 12:59:38,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 12:59:38,449 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 12:59:38,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 12:59:38,450 INFO L85 PathProgramCache]: Analyzing trace with hash 996345364, now seen corresponding path program 1 times [2024-11-18 12:59:38,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 12:59:38,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163065099] [2024-11-18 12:59:38,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 12:59:38,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 12:59:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 12:59:38,529 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-18 12:59:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-18 12:59:38,626 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-18 12:59:38,626 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-18 12:59:38,629 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 12:59:38,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 12:59:38,635 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-18 12:59:38,676 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 12:59:38,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:59:38 BoogieIcfgContainer [2024-11-18 12:59:38,680 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 12:59:38,681 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 12:59:38,681 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 12:59:38,684 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 12:59:38,685 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:37" (3/4) ... [2024-11-18 12:59:38,686 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-18 12:59:38,752 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 12:59:38,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 12:59:38,753 INFO L158 Benchmark]: Toolchain (without parser) took 1946.59ms. Allocated memory is still 155.2MB. Free memory was 84.7MB in the beginning and 58.2MB in the end (delta: 26.5MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2024-11-18 12:59:38,754 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 109.8MB in the end (delta: 139.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 12:59:38,754 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.76ms. Allocated memory is still 155.2MB. Free memory was 84.5MB in the beginning and 124.8MB in the end (delta: -40.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2024-11-18 12:59:38,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.90ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 123.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 12:59:38,755 INFO L158 Benchmark]: Boogie Preprocessor took 36.03ms. Allocated memory is still 155.2MB. Free memory was 123.2MB in the beginning and 120.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 12:59:38,755 INFO L158 Benchmark]: RCFGBuilder took 356.40ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 106.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-18 12:59:38,755 INFO L158 Benchmark]: TraceAbstraction took 1112.41ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 61.3MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-18 12:59:38,756 INFO L158 Benchmark]: Witness Printer took 71.95ms. Allocated memory is still 155.2MB. Free memory was 60.8MB in the beginning and 58.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-18 12:59:38,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 155.2MB. Free memory was 109.9MB in the beginning and 109.8MB in the end (delta: 139.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.76ms. Allocated memory is still 155.2MB. Free memory was 84.5MB in the beginning and 124.8MB in the end (delta: -40.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.90ms. Allocated memory is still 155.2MB. Free memory was 124.8MB in the beginning and 123.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.03ms. Allocated memory is still 155.2MB. Free memory was 123.2MB in the beginning and 120.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 356.40ms. Allocated memory is still 155.2MB. Free memory was 120.6MB in the beginning and 106.9MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1112.41ms. Allocated memory is still 155.2MB. Free memory was 106.4MB in the beginning and 61.3MB in the end (delta: 45.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 71.95ms. Allocated memory is still 155.2MB. Free memory was 60.8MB in the beginning and 58.2MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 56]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; [L15] struct dummy d1, d2; VAL [d1={4:0}, d2={5:0}] [L40] CALL init() [L19] d1.a = __VERIFIER_nondet_int() [L20] d1.b = __VERIFIER_nondet_int() [L21] EXPR d1.a VAL [d1={4:0}, d2={5:0}] [L21] CALL assume_abort_if_not(d1.a >= -2147483638) VAL [\old(cond)=1, d1={4:0}, d2={5:0}] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, d1={4:0}, d2={5:0}] [L21] RET assume_abort_if_not(d1.a >= -2147483638) VAL [d1={4:0}, d2={5:0}] [L23] d2.a = __VERIFIER_nondet_int() [L24] d2.b = __VERIFIER_nondet_int() [L25] EXPR d2.a VAL [d1={4:0}, d2={5:0}] [L25] CALL assume_abort_if_not(d2.a >= -2147483638) VAL [\old(cond)=1, d1={4:0}, d2={5:0}] [L8] COND FALSE !(!cond) VAL [\old(cond)=1, d1={4:0}, d2={5:0}] [L25] RET assume_abort_if_not(d2.a >= -2147483638) VAL [d1={4:0}, d2={5:0}] [L40] RET init() [L41] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L30] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L41] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L41] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L41] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L30] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L41] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, pd1={4:0}] [L41] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L41] CALL, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}] [L30] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L41] RET, EXPR get_dummy() VAL [d1={4:0}, d2={5:0}, pd1={4:0}, pd2={4:0}] [L41] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L42] int i = __VERIFIER_nondet_int(); [L43] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={4:0}, d2={5:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}] [L43] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L43] EXPR (*pd2).a [L43] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [d1={4:0}, d2={5:0}, pd1={4:0}, pd2={4:0}, pd3={5:0}] [L43] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L44] int *pa = &pd1->a; [L45] EXPR pd3->a [L45] i = pd3->a - 10 [L46] EXPR \read(*pa) VAL [d1={4:0}, d2={5:0}] [L46] COND FALSE !(i < *pa) [L49] CALL, EXPR check(pd2, i) [L35] EXPR s1->a [L35] return s1->a == i; [L49] RET, EXPR check(pd2, i) [L49] COND TRUE !check(pd2, i) [L56] reach_error() VAL [d1={4:0}, d2={5:0}, pa={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 38 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 38 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 176 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 24/26 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-18 12:59:38,783 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE