./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/terminator_01.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 82b79a9a0e08e4cbe68dbb8ee267b92366638418cbe09cb6aac3231ced8eab7e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 01:48:03,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 01:48:03,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 01:48:03,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 01:48:03,114 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 01:48:03,148 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 01:48:03,149 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 01:48:03,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 01:48:03,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 01:48:03,153 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 01:48:03,153 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 01:48:03,153 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 01:48:03,154 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 01:48:03,154 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 01:48:03,155 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 01:48:03,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 01:48:03,156 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 01:48:03,156 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 01:48:03,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 01:48:03,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 01:48:03,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 01:48:03,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 01:48:03,157 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 01:48:03,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 01:48:03,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 01:48:03,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 01:48:03,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 01:48:03,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 01:48:03,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 01:48:03,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 01:48:03,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 01:48:03,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 01:48:03,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 01:48:03,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 01:48:03,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 01:48:03,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 01:48:03,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 01:48:03,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 01:48:03,161 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 01:48:03,161 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 01:48:03,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 01:48:03,165 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 01:48:03,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 82b79a9a0e08e4cbe68dbb8ee267b92366638418cbe09cb6aac3231ced8eab7e [2024-10-11 01:48:03,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 01:48:03,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 01:48:03,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 01:48:03,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 01:48:03,463 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 01:48:03,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_01.c [2024-10-11 01:48:04,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 01:48:05,085 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 01:48:05,086 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/terminator_01.c [2024-10-11 01:48:05,094 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ff55d198a/9e5692736bf441409e6bfe9c65eac222/FLAG8daedc45f [2024-10-11 01:48:05,111 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/ff55d198a/9e5692736bf441409e6bfe9c65eac222 [2024-10-11 01:48:05,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 01:48:05,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 01:48:05,120 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 01:48:05,120 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 01:48:05,126 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 01:48:05,127 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,128 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@590bfccd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05, skipping insertion in model container [2024-10-11 01:48:05,128 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 01:48:05,348 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/loops/terminator_01.c[325,338] [2024-10-11 01:48:05,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 01:48:05,371 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 01:48:05,384 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/loops/terminator_01.c[325,338] [2024-10-11 01:48:05,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 01:48:05,406 INFO L204 MainTranslator]: Completed translation [2024-10-11 01:48:05,407 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05 WrapperNode [2024-10-11 01:48:05,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 01:48:05,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 01:48:05,409 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 01:48:05,409 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 01:48:05,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,424 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,442 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2024-10-11 01:48:05,443 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 01:48:05,444 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 01:48:05,445 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 01:48:05,445 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 01:48:05,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,455 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,457 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,473 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 1 writes are split as follows [0, 1]. [2024-10-11 01:48:05,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,479 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,482 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,487 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,488 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 01:48:05,490 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 01:48:05,491 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 01:48:05,491 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 01:48:05,492 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (1/1) ... [2024-10-11 01:48:05,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 01:48:05,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 01:48:05,558 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) [2024-10-11 01:48:05,561 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 [2024-10-11 01:48:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 01:48:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 01:48:05,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 01:48:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 01:48:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 01:48:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 01:48:05,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 01:48:05,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 01:48:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 01:48:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 01:48:05,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 01:48:05,705 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 01:48:05,708 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 01:48:05,826 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-11 01:48:05,827 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 01:48:05,863 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 01:48:05,864 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 01:48:05,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:48:05 BoogieIcfgContainer [2024-10-11 01:48:05,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 01:48:05,867 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 01:48:05,867 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 01:48:05,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 01:48:05,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 01:48:05" (1/3) ... [2024-10-11 01:48:05,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef3cb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:48:05, skipping insertion in model container [2024-10-11 01:48:05,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 01:48:05" (2/3) ... [2024-10-11 01:48:05,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ef3cb17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 01:48:05, skipping insertion in model container [2024-10-11 01:48:05,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:48:05" (3/3) ... [2024-10-11 01:48:05,875 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_01.c [2024-10-11 01:48:05,892 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 01:48:05,893 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 01:48:05,960 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 01:48:05,968 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;@557c2fcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 01:48:05,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 01:48:05,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 01:48:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-11 01:48:05,979 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 01:48:05,979 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 01:48:05,980 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 01:48:05,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 01:48:05,986 INFO L85 PathProgramCache]: Analyzing trace with hash 58614883, now seen corresponding path program 1 times [2024-10-11 01:48:05,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 01:48:05,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587873662] [2024-10-11 01:48:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:48:05,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 01:48:06,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 01:48:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 01:48:06,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 01:48:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587873662] [2024-10-11 01:48:06,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587873662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 01:48:06,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 01:48:06,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 01:48:06,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938833853] [2024-10-11 01:48:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 01:48:06,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 01:48:06,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 01:48:06,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 01:48:06,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 01:48:06,174 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 01:48:06,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 01:48:06,191 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2024-10-11 01:48:06,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 01:48:06,195 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-11 01:48:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 01:48:06,202 INFO L225 Difference]: With dead ends: 15 [2024-10-11 01:48:06,203 INFO L226 Difference]: Without dead ends: 7 [2024-10-11 01:48:06,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 01:48:06,208 INFO L432 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 01:48:06,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 01:48:06,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2024-10-11 01:48:06,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2024-10-11 01:48:06,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 01:48:06,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-10-11 01:48:06,239 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2024-10-11 01:48:06,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 01:48:06,239 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2024-10-11 01:48:06,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 01:48:06,240 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2024-10-11 01:48:06,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-11 01:48:06,240 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 01:48:06,240 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 01:48:06,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 01:48:06,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 01:48:06,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 01:48:06,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1810415056, now seen corresponding path program 1 times [2024-10-11 01:48:06,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 01:48:06,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230486657] [2024-10-11 01:48:06,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 01:48:06,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 01:48:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 01:48:06,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 01:48:06,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 01:48:06,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 01:48:06,296 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 01:48:06,298 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 01:48:06,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 01:48:06,303 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 01:48:06,320 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 01:48:06,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 01:48:06 BoogieIcfgContainer [2024-10-11 01:48:06,325 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 01:48:06,325 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 01:48:06,325 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 01:48:06,326 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 01:48:06,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 01:48:05" (3/4) ... [2024-10-11 01:48:06,330 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-11 01:48:06,370 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 01:48:06,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 01:48:06,371 INFO L158 Benchmark]: Toolchain (without parser) took 1255.39ms. Allocated memory is still 153.1MB. Free memory was 84.2MB in the beginning and 90.3MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 01:48:06,372 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 01:48:06,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.00ms. Allocated memory is still 153.1MB. Free memory was 84.1MB in the beginning and 72.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-11 01:48:06,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.55ms. Allocated memory is still 153.1MB. Free memory was 72.1MB in the beginning and 70.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 01:48:06,373 INFO L158 Benchmark]: Boogie Preprocessor took 44.14ms. Allocated memory is still 153.1MB. Free memory was 70.7MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 01:48:06,373 INFO L158 Benchmark]: RCFGBuilder took 375.40ms. Allocated memory is still 153.1MB. Free memory was 68.9MB in the beginning and 116.5MB in the end (delta: -47.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 01:48:06,374 INFO L158 Benchmark]: TraceAbstraction took 457.71ms. Allocated memory is still 153.1MB. Free memory was 115.4MB in the beginning and 92.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 01:48:06,374 INFO L158 Benchmark]: Witness Printer took 45.31ms. Allocated memory is still 153.1MB. Free memory was 92.1MB in the beginning and 90.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 01:48:06,376 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 113.2MB. Free memory is still 74.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.00ms. Allocated memory is still 153.1MB. Free memory was 84.1MB in the beginning and 72.3MB in the end (delta: 11.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.55ms. Allocated memory is still 153.1MB. Free memory was 72.1MB in the beginning and 70.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.14ms. Allocated memory is still 153.1MB. Free memory was 70.7MB in the beginning and 69.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 375.40ms. Allocated memory is still 153.1MB. Free memory was 68.9MB in the beginning and 116.5MB in the end (delta: -47.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 457.71ms. Allocated memory is still 153.1MB. Free memory was 115.4MB in the beginning and 92.1MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 45.31ms. Allocated memory is still 153.1MB. Free memory was 92.1MB in the beginning and 90.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int x=__VERIFIER_nondet_int(); [L15] int x=__VERIFIER_nondet_int(); [L16] int *p = &x; VAL [p={5:0}, x={5:0}] [L18] EXPR \read(x) [L18] COND FALSE !(x<100) [L21] CALL __VERIFIER_assert(0) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, 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, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-10-11 01:48:06,414 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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE