./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --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 ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 10:24:14,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 10:24:14,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-25 10:24:14,545 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 10:24:14,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 10:24:14,567 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 10:24:14,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 10:24:14,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 10:24:14,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 10:24:14,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 10:24:14,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 10:24:14,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 10:24:14,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 10:24:14,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 10:24:14,573 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 10:24:14,574 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 10:24:14,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 10:24:14,574 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 10:24:14,575 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 10:24:14,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 10:24:14,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 10:24:14,576 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 10:24:14,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 10:24:14,576 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 10:24:14,576 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 10:24:14,576 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 10:24:14,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 10:24:14,577 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 10:24:14,577 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 10:24:14,577 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 10:24:14,577 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 10:24:14,577 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 10:24:14,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 10:24:14,578 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 10:24:14,578 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 10:24:14,579 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 10:24:14,579 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 10:24:14,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 10:24:14,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 10:24:14,580 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 10:24:14,580 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 10:24:14,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 10:24:14,580 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/certificate-witnesses-artifact/automizer/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/certificate-witnesses-artifact/automizer 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 -> ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Encode 'modifies' clause in 'ensures' clause of contracts -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-25 10:24:14,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 10:24:14,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 10:24:14,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 10:24:14,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 10:24:14,862 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 10:24:14,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 10:24:16,224 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 10:24:16,406 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 10:24:16,406 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2024-09-25 10:24:16,414 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0a71e5b36/df79c592089b4a8f9524474746611443/FLAGcc7017f2f [2024-09-25 10:24:16,785 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0a71e5b36/df79c592089b4a8f9524474746611443 [2024-09-25 10:24:16,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 10:24:16,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-25 10:24:16,788 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 10:24:16,788 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 10:24:16,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 10:24:16,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,793 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c6c345b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16, skipping insertion in model container [2024-09-25 10:24:16,793 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,806 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 10:24:16,917 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-25 10:24:16,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 10:24:16,928 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 10:24:16,938 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2024-09-25 10:24:16,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 10:24:16,949 INFO L204 MainTranslator]: Completed translation [2024-09-25 10:24:16,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16 WrapperNode [2024-09-25 10:24:16,950 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 10:24:16,951 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-25 10:24:16,951 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-25 10:24:16,951 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-25 10:24:16,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,961 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,966 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-25 10:24:16,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-25 10:24:16,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 10:24:16,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 10:24:16,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 10:24:16,974 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,975 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,983 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-25 10:24:16,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 10:24:16,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 10:24:16,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 10:24:16,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 10:24:16,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (1/1) ... [2024-09-25 10:24:16,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 10:24:17,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-25 10:24:17,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 10:24:17,038 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 10:24:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 10:24:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 10:24:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 10:24:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 10:24:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 10:24:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 10:24:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 10:24:17,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 10:24:17,162 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 10:24:17,164 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 10:24:17,289 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2024-09-25 10:24:17,291 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 10:24:17,313 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 10:24:17,313 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 10:24:17,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:24:17 BoogieIcfgContainer [2024-09-25 10:24:17,314 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 10:24:17,315 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-25 10:24:17,315 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-25 10:24:17,319 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-25 10:24:17,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:24:16" (1/3) ... [2024-09-25 10:24:17,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a27c9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:24:17, skipping insertion in model container [2024-09-25 10:24:17,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:24:16" (2/3) ... [2024-09-25 10:24:17,320 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a27c9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:24:17, skipping insertion in model container [2024-09-25 10:24:17,320 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:24:17" (3/3) ... [2024-09-25 10:24:17,321 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2024-09-25 10:24:17,333 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-25 10:24:17,334 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-25 10:24:17,379 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-25 10:24:17,384 INFO L336 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=All, 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;@27bc58a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-25 10:24:17,384 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-25 10:24:17,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) [2024-09-25 10:24:17,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-25 10:24:17,395 INFO L208 NwaCegarLoop]: Found error trace [2024-09-25 10:24:17,396 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-25 10:24:17,397 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-25 10:24:17,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:24:17,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1330646415, now seen corresponding path program 1 times [2024-09-25 10:24:17,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-25 10:24:17,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618101921] [2024-09-25 10:24:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-25 10:24:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-25 10:24:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:24:17,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-25 10:24:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:24:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:24:17,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-25 10:24:17,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618101921] [2024-09-25 10:24:17,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618101921] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-25 10:24:17,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-25 10:24:17,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-25 10:24:17,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005925388] [2024-09-25 10:24:17,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-25 10:24:17,621 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-25 10:24:17,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-25 10:24:17,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-25 10:24:17,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-25 10:24:17,641 INFO L87 Difference]: Start difference. First operand has 15 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 states have internal predecessors, (14), 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) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:24:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-25 10:24:17,708 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2024-09-25 10:24:17,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-25 10:24:17,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-25 10:24:17,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-25 10:24:17,716 INFO L225 Difference]: With dead ends: 25 [2024-09-25 10:24:17,716 INFO L226 Difference]: Without dead ends: 12 [2024-09-25 10:24:17,718 INFO L433 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 [2024-09-25 10:24:17,723 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 14 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-25 10:24:17,723 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 12 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-25 10:24:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2024-09-25 10:24:17,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2024-09-25 10:24:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:24:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-09-25 10:24:17,753 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2024-09-25 10:24:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-25 10:24:17,754 INFO L474 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-09-25 10:24:17,754 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:24:17,755 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:24:17,755 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-09-25 10:24:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-25 10:24:17,755 INFO L208 NwaCegarLoop]: Found error trace [2024-09-25 10:24:17,756 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-25 10:24:17,758 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-25 10:24:17,758 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-25 10:24:17,759 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:24:17,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1699571622, now seen corresponding path program 1 times [2024-09-25 10:24:17,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-25 10:24:17,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434983427] [2024-09-25 10:24:17,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-25 10:24:17,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-25 10:24:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:24:17,906 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-25 10:24:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:24:17,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:24:17,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-25 10:24:17,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434983427] [2024-09-25 10:24:17,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434983427] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-25 10:24:17,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970822686] [2024-09-25 10:24:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-25 10:24:17,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-25 10:24:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-25 10:24:17,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-25 10:24:17,915 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-25 10:24:17,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:24:17,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-25 10:24:17,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-25 10:24:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:24:17,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-25 10:24:18,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:24:18,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970822686] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-25 10:24:18,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-25 10:24:18,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2024-09-25 10:24:18,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504252273] [2024-09-25 10:24:18,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-25 10:24:18,038 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-09-25 10:24:18,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-25 10:24:18,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-09-25 10:24:18,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-09-25 10:24:18,040 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:24:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-25 10:24:18,102 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2024-09-25 10:24:18,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-25 10:24:18,102 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-25 10:24:18,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-25 10:24:18,103 INFO L225 Difference]: With dead ends: 13 [2024-09-25 10:24:18,103 INFO L226 Difference]: Without dead ends: 0 [2024-09-25 10:24:18,103 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2024-09-25 10:24:18,104 INFO L434 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-25 10:24:18,104 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-25 10:24:18,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-25 10:24:18,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-25 10:24:18,105 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) [2024-09-25 10:24:18,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-25 10:24:18,106 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2024-09-25 10:24:18,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-25 10:24:18,106 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-25 10:24:18,106 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 8 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:24:18,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:24:18,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-25 10:24:18,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-25 10:24:18,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-25 10:24:18,121 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-25 10:24:18,313 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-25 10:24:18,316 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-25 10:24:18,318 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-25 10:24:18,395 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-25 10:24:18,408 WARN L156 FloydHoareUtils]: Requires clause for main contained old-variable. Original clause: (= |old(~__return_144~0)| ~__return_144~0) Eliminated clause: true [2024-09-25 10:24:18,411 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-09-25 10:24:18,412 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-09-25 10:24:18,413 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-09-25 10:24:18,413 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-09-25 10:24:18,413 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-09-25 10:24:18,413 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-09-25 10:24:18,413 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-09-25 10:24:18,414 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-09-25 10:24:18,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:24:18 BoogieIcfgContainer [2024-09-25 10:24:18,414 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-25 10:24:18,415 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-25 10:24:18,415 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-25 10:24:18,415 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-25 10:24:18,415 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:24:17" (3/4) ... [2024-09-25 10:24:18,417 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-25 10:24:18,458 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-25 10:24:18,458 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-25 10:24:18,459 INFO L158 Benchmark]: Toolchain (without parser) took 1671.13ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 51.0MB in the beginning and 44.7MB in the end (delta: 6.3MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-09-25 10:24:18,461 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 10:24:18,462 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.59ms. Allocated memory is still 73.4MB. Free memory was 50.8MB in the beginning and 39.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-25 10:24:18,463 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.25ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 38.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 10:24:18,463 INFO L158 Benchmark]: Boogie Preprocessor took 25.57ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 36.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 10:24:18,463 INFO L158 Benchmark]: RCFGBuilder took 320.81ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 74.1MB in the end (delta: -37.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-25 10:24:18,463 INFO L158 Benchmark]: TraceAbstraction took 1098.98ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 47.3MB in the end (delta: 26.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. [2024-09-25 10:24:18,474 INFO L158 Benchmark]: Witness Printer took 43.60ms. Allocated memory is still 100.7MB. Free memory was 46.8MB in the beginning and 44.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 10:24:18,476 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 73.4MB. Free memory is still 50.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.59ms. Allocated memory is still 73.4MB. Free memory was 50.8MB in the beginning and 39.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 15.25ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 38.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.57ms. Allocated memory is still 73.4MB. Free memory was 38.2MB in the beginning and 36.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 320.81ms. Allocated memory was 73.4MB in the beginning and 100.7MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 74.1MB in the end (delta: -37.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1098.98ms. Allocated memory is still 100.7MB. Free memory was 73.3MB in the beginning and 47.3MB in the end (delta: 26.0MB). Peak memory consumption was 28.1MB. Max. memory is 16.1GB. * Witness Printer took 43.60ms. Allocated memory is still 100.7MB. Free memory was 46.8MB in the beginning and 44.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid * 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: 48]: 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 3 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 8 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 114 SizeOfPredicates, 1 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: 32]: Location Invariant Derived location invariant: (((main__x < 0) || (0 < main__y)) && (\old(__return_144) == __return_144)) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main. Ensures: (__return_main == \old(__return_main)) RESULT: Ultimate proved your program to be correct! [2024-09-25 10:24:18,501 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/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