./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/sanfoundry_24-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-examples/sanfoundry_24-1.i -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 e0a16588b251f5de7b3febde43795c7086835cc989637b8bd82aa8d6af355c6b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-21 20:30:06,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-21 20:30:06,232 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-21 20:30:06,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-21 20:30:06,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-21 20:30:06,256 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-21 20:30:06,257 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-21 20:30:06,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-21 20:30:06,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-21 20:30:06,260 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-21 20:30:06,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-21 20:30:06,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-21 20:30:06,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-21 20:30:06,262 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-21 20:30:06,263 INFO L153 SettingsManager]: * Use SBE=true [2024-11-21 20:30:06,263 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-21 20:30:06,263 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-21 20:30:06,263 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-21 20:30:06,264 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-21 20:30:06,264 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-21 20:30:06,264 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-21 20:30:06,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-21 20:30:06,267 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-21 20:30:06,267 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-21 20:30:06,268 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-21 20:30:06,268 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-21 20:30:06,268 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-21 20:30:06,268 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-21 20:30:06,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-21 20:30:06,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-21 20:30:06,269 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-21 20:30:06,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-21 20:30:06,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 20:30:06,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-21 20:30:06,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-21 20:30:06,269 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-21 20:30:06,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-21 20:30:06,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-21 20:30:06,270 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-21 20:30:06,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-21 20:30:06,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-21 20:30:06,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-21 20:30:06,272 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0a16588b251f5de7b3febde43795c7086835cc989637b8bd82aa8d6af355c6b [2024-11-21 20:30:06,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-21 20:30:06,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-21 20:30:06,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-21 20:30:06,507 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-21 20:30:06,507 INFO L274 PluginConnector]: CDTParser initialized [2024-11-21 20:30:06,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sanfoundry_24-1.i [2024-11-21 20:30:07,731 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-21 20:30:07,864 INFO L384 CDTParser]: Found 1 translation units. [2024-11-21 20:30:07,864 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sanfoundry_24-1.i [2024-11-21 20:30:07,870 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa61b818/06bbb36122a541e4a0984360b04e443d/FLAGfce6a4f36 [2024-11-21 20:30:08,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfa61b818/06bbb36122a541e4a0984360b04e443d [2024-11-21 20:30:08,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-21 20:30:08,286 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-21 20:30:08,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-21 20:30:08,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-21 20:30:08,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-21 20:30:08,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494a935a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08, skipping insertion in model container [2024-11-21 20:30:08,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-21 20:30:08,439 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/array-examples/sanfoundry_24-1.i[848,861] [2024-11-21 20:30:08,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 20:30:08,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-21 20:30:08,479 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/array-examples/sanfoundry_24-1.i[848,861] [2024-11-21 20:30:08,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-21 20:30:08,501 INFO L204 MainTranslator]: Completed translation [2024-11-21 20:30:08,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08 WrapperNode [2024-11-21 20:30:08,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-21 20:30:08,503 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-21 20:30:08,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-21 20:30:08,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-21 20:30:08,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,515 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,531 INFO L138 Inliner]: procedures = 18, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-11-21 20:30:08,531 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-21 20:30:08,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-21 20:30:08,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-21 20:30:08,532 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-21 20:30:08,543 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,543 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,545 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,554 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-21 20:30:08,554 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,554 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,558 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,560 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,561 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,563 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-21 20:30:08,563 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-21 20:30:08,564 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-21 20:30:08,564 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-21 20:30:08,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (1/1) ... [2024-11-21 20:30:08,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-21 20:30:08,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-21 20:30:08,592 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) [2024-11-21 20:30:08,594 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 [2024-11-21 20:30:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-21 20:30:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-21 20:30:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-21 20:30:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-21 20:30:08,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-21 20:30:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-21 20:30:08,683 INFO L238 CfgBuilder]: Building ICFG [2024-11-21 20:30:08,685 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-21 20:30:08,810 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-21 20:30:08,810 INFO L287 CfgBuilder]: Performing block encoding [2024-11-21 20:30:08,823 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-21 20:30:08,824 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-21 20:30:08,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:30:08 BoogieIcfgContainer [2024-11-21 20:30:08,824 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-21 20:30:08,841 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-21 20:30:08,841 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-21 20:30:08,844 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-21 20:30:08,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:30:08" (1/3) ... [2024-11-21 20:30:08,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efe6179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:30:08, skipping insertion in model container [2024-11-21 20:30:08,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:30:08" (2/3) ... [2024-11-21 20:30:08,845 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efe6179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:30:08, skipping insertion in model container [2024-11-21 20:30:08,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:30:08" (3/3) ... [2024-11-21 20:30:08,846 INFO L112 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2024-11-21 20:30:08,859 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-21 20:30:08,859 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-21 20:30:08,899 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-21 20:30:08,904 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;@295c442e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-21 20:30:08,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-21 20:30:08,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 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) [2024-11-21 20:30:08,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-21 20:30:08,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:30:08,914 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:30:08,915 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:30:08,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:30:08,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1970177477, now seen corresponding path program 1 times [2024-11-21 20:30:08,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:30:08,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964999017] [2024-11-21 20:30:08,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:30:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:30:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:30:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-21 20:30:09,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:30:09,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964999017] [2024-11-21 20:30:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964999017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:30:09,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:30:09,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-21 20:30:09,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165653977] [2024-11-21 20:30:09,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:30:09,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-21 20:30:09,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:30:09,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-21 20:30:09,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:30:09,196 INFO L87 Difference]: Start difference. First operand has 26 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 22 states have internal predecessors, (31), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-21 20:30:09,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:30:09,278 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2024-11-21 20:30:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-21 20:30:09,290 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 10 [2024-11-21 20:30:09,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:30:09,302 INFO L225 Difference]: With dead ends: 64 [2024-11-21 20:30:09,302 INFO L226 Difference]: Without dead ends: 34 [2024-11-21 20:30:09,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-21 20:30:09,322 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 20:30:09,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 58 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 20:30:09,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-21 20:30:09,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 24. [2024-11-21 20:30:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 20 states have (on average 1.25) internal successors, (25), 20 states have internal predecessors, (25), 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) [2024-11-21 20:30:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2024-11-21 20:30:09,359 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 10 [2024-11-21 20:30:09,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:30:09,359 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2024-11-21 20:30:09,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2024-11-21 20:30:09,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2024-11-21 20:30:09,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-21 20:30:09,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:30:09,360 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:30:09,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-21 20:30:09,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:30:09,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:30:09,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1314979911, now seen corresponding path program 1 times [2024-11-21 20:30:09,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:30:09,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398998421] [2024-11-21 20:30:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:30:09,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:30:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:30:09,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-21 20:30:09,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:30:09,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398998421] [2024-11-21 20:30:09,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398998421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:30:09,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:30:09,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-21 20:30:09,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289907880] [2024-11-21 20:30:09,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:30:09,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-21 20:30:09,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:30:09,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-21 20:30:09,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-21 20:30:09,693 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-11-21 20:30:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:30:09,761 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-11-21 20:30:09,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 20:30:09,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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 12 [2024-11-21 20:30:09,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:30:09,762 INFO L225 Difference]: With dead ends: 30 [2024-11-21 20:30:09,763 INFO L226 Difference]: Without dead ends: 28 [2024-11-21 20:30:09,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-21 20:30:09,764 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-21 20:30:09,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 95 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-21 20:30:09,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-21 20:30:09,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-21 20:30:09,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 23 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-21 20:30:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-11-21 20:30:09,771 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 12 [2024-11-21 20:30:09,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:30:09,773 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-11-21 20:30:09,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 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) [2024-11-21 20:30:09,774 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-11-21 20:30:09,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-21 20:30:09,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-21 20:30:09,775 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-21 20:30:09,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-21 20:30:09,775 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-21 20:30:09,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-21 20:30:09,777 INFO L85 PathProgramCache]: Analyzing trace with hash -663653835, now seen corresponding path program 1 times [2024-11-21 20:30:09,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-21 20:30:09,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726255784] [2024-11-21 20:30:09,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-21 20:30:09,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-21 20:30:09,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-21 20:30:09,993 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-21 20:30:09,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-21 20:30:09,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726255784] [2024-11-21 20:30:09,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726255784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-21 20:30:09,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-21 20:30:09,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-21 20:30:09,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148971697] [2024-11-21 20:30:09,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-21 20:30:09,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-21 20:30:09,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-21 20:30:09,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-21 20:30:09,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-21 20:30:09,996 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-21 20:30:10,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-21 20:30:10,040 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2024-11-21 20:30:10,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-21 20:30:10,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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 17 [2024-11-21 20:30:10,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-21 20:30:10,041 INFO L225 Difference]: With dead ends: 28 [2024-11-21 20:30:10,041 INFO L226 Difference]: Without dead ends: 0 [2024-11-21 20:30:10,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-21 20:30:10,042 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-21 20:30:10,043 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 96 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-21 20:30:10,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-21 20:30:10,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-21 20:30:10,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-21 20:30:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-21 20:30:10,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2024-11-21 20:30:10,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-21 20:30:10,045 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-21 20:30:10,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-21 20:30:10,046 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-21 20:30:10,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-21 20:30:10,048 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-21 20:30:10,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-21 20:30:10,051 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-21 20:30:10,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-21 20:30:10,072 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-21 20:30:10,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 08:30:10 BoogieIcfgContainer [2024-11-21 20:30:10,092 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-21 20:30:10,093 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-21 20:30:10,095 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-21 20:30:10,096 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-21 20:30:10,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:30:08" (3/4) ... [2024-11-21 20:30:10,098 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-21 20:30:10,102 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-21 20:30:10,104 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-21 20:30:10,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-21 20:30:10,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-21 20:30:10,105 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-21 20:30:10,177 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-21 20:30:10,178 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-21 20:30:10,178 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-21 20:30:10,178 INFO L158 Benchmark]: Toolchain (without parser) took 1892.17ms. Allocated memory was 159.4MB in the beginning and 220.2MB in the end (delta: 60.8MB). Free memory was 87.9MB in the beginning and 82.7MB in the end (delta: 5.1MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,179 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 159.4MB. Free memory was 110.3MB in the beginning and 110.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-21 20:30:10,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.54ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 75.4MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,179 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.00ms. Allocated memory is still 159.4MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,179 INFO L158 Benchmark]: Boogie Preprocessor took 30.95ms. Allocated memory is still 159.4MB. Free memory was 73.7MB in the beginning and 71.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,180 INFO L158 Benchmark]: RCFGBuilder took 260.74ms. Allocated memory is still 159.4MB. Free memory was 71.6MB in the beginning and 127.1MB in the end (delta: -55.6MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,180 INFO L158 Benchmark]: TraceAbstraction took 1251.17ms. Allocated memory is still 220.2MB. Free memory was 190.5MB in the beginning and 86.9MB in the end (delta: 103.5MB). Peak memory consumption was 100.4MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,180 INFO L158 Benchmark]: Witness Printer took 85.22ms. Allocated memory is still 220.2MB. Free memory was 86.9MB in the beginning and 82.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-21 20:30:10,181 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 159.4MB. Free memory was 110.3MB in the beginning and 110.1MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.54ms. Allocated memory is still 159.4MB. Free memory was 87.7MB in the beginning and 75.4MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.00ms. Allocated memory is still 159.4MB. Free memory was 75.3MB in the beginning and 73.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.95ms. Allocated memory is still 159.4MB. Free memory was 73.7MB in the beginning and 71.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 260.74ms. Allocated memory is still 159.4MB. Free memory was 71.6MB in the beginning and 127.1MB in the end (delta: -55.6MB). Peak memory consumption was 17.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1251.17ms. Allocated memory is still 220.2MB. Free memory was 190.5MB in the beginning and 86.9MB in the end (delta: 103.5MB). Peak memory consumption was 100.4MB. Max. memory is 16.1GB. * Witness Printer took 85.22ms. Allocated memory is still 220.2MB. Free memory was 86.9MB in the beginning and 82.7MB in the end (delta: 4.2MB). 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 - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 249 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 182 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 108 IncrementalHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 67 mSDtfsCounter, 108 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 17, 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, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 94 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (cond != 0) Ensures: (cond != 0) RESULT: Ultimate proved your program to be correct! [2024-11-21 20:30:10,199 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 Result: TRUE