./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f1d7dc9d Calling Ultimate with: /root/.sdkman/candidates/java/current/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.i -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 d7b840784ed09a8ba534cc1991a3b26e3517ca5684a3a750b52e1a997eff0418 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 12:03:44,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 12:03:44,270 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 12:03:44,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 12:03:44,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 12:03:44,317 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 12:03:44,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 12:03:44,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 12:03:44,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 12:03:44,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 12:03:44,323 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 12:03:44,323 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 12:03:44,324 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 12:03:44,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 12:03:44,326 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 12:03:44,326 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 12:03:44,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 12:03:44,327 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 12:03:44,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 12:03:44,327 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 12:03:44,328 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 12:03:44,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 12:03:44,331 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 12:03:44,331 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 12:03:44,332 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 12:03:44,333 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 12:03:44,333 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 12:03:44,334 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 12:03:44,334 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 12:03:44,334 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 12:03:44,335 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 12:03:44,335 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 12:03:44,336 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 12:03:44,336 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 12:03:44,336 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 12:03:44,337 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 12:03:44,337 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 12:03:44,337 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 12:03:44,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 12:03:44,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 12:03:44,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 12:03:44,339 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 12:03:44,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7b840784ed09a8ba534cc1991a3b26e3517ca5684a3a750b52e1a997eff0418 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-20 12:03:44,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 12:03:44,636 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 12:03:44,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 12:03:44,643 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 12:03:44,644 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 12:03:44,645 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/gsv2008.i [2024-09-20 12:03:46,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 12:03:46,380 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 12:03:46,381 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.i [2024-09-20 12:03:46,388 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/659305d71/5a9707062ab743618c4827b700f441d3/FLAG97a26d711 [2024-09-20 12:03:46,759 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/659305d71/5a9707062ab743618c4827b700f441d3 [2024-09-20 12:03:46,761 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 12:03:46,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-20 12:03:46,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 12:03:46,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 12:03:46,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 12:03:46,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:46,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc272c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46, skipping insertion in model container [2024-09-20 12:03:46,772 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:46,795 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 12:03:46,943 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.i[895,908] [2024-09-20 12:03:46,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 12:03:46,964 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 12:03:46,977 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.i[895,908] [2024-09-20 12:03:46,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 12:03:46,997 INFO L204 MainTranslator]: Completed translation [2024-09-20 12:03:46,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46 WrapperNode [2024-09-20 12:03:46,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 12:03:47,000 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 12:03:47,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 12:03:47,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 12:03:47,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,020 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-20 12:03:47,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 12:03:47,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 12:03:47,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 12:03:47,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 12:03:47,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,034 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,048 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]. [2024-09-20 12:03:47,048 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,048 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,054 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,061 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,063 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,065 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 12:03:47,066 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 12:03:47,067 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 12:03:47,067 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 12:03:47,068 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (1/1) ... [2024-09-20 12:03:47,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 12:03:47,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:03:47,105 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) [2024-09-20 12:03:47,108 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 [2024-09-20 12:03:47,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 12:03:47,242 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 12:03:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 12:03:47,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 12:03:47,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 12:03:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 12:03:47,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 12:03:47,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 12:03:47,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 12:03:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 12:03:47,301 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 12:03:47,304 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 12:03:47,420 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-20 12:03:47,421 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 12:03:47,439 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 12:03:47,439 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 12:03:47,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:03:47 BoogieIcfgContainer [2024-09-20 12:03:47,439 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 12:03:47,441 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 12:03:47,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 12:03:47,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 12:03:47,445 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:03:46" (1/3) ... [2024-09-20 12:03:47,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a72e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:03:47, skipping insertion in model container [2024-09-20 12:03:47,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:46" (2/3) ... [2024-09-20 12:03:47,446 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a72e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:03:47, skipping insertion in model container [2024-09-20 12:03:47,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:03:47" (3/3) ... [2024-09-20 12:03:47,448 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.i [2024-09-20 12:03:47,465 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 12:03:47,466 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-20 12:03:47,529 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 12:03:47,536 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;@1bfa4de1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 12:03:47,536 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-20 12:03:47,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-20 12:03:47,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-20 12:03:47,548 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:03:47,549 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:03:47,550 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:03:47,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:03:47,556 INFO L85 PathProgramCache]: Analyzing trace with hash -33105417, now seen corresponding path program 1 times [2024-09-20 12:03:47,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:03:47,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087491590] [2024-09-20 12:03:47,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:03:47,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:03:47,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:03:47,798 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 12:03:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:03:47,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:03:47,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:03:47,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087491590] [2024-09-20 12:03:47,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087491590] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 12:03:47,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 12:03:47,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 12:03:47,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202520443] [2024-09-20 12:03:47,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 12:03:47,823 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 12:03:47,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:03:47,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 12:03:47,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 12:03:47,857 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 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) [2024-09-20 12:03:47,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:03:47,899 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2024-09-20 12:03:47,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 12:03:47,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 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 [2024-09-20 12:03:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:03:47,917 INFO L225 Difference]: With dead ends: 34 [2024-09-20 12:03:47,918 INFO L226 Difference]: Without dead ends: 13 [2024-09-20 12:03:47,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 12:03:47,925 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 12:03:47,927 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 12:03:47,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-09-20 12:03:47,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-09-20 12:03:47,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:03:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-09-20 12:03:47,964 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2024-09-20 12:03:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:03:47,965 INFO L474 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-09-20 12:03:47,965 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 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) [2024-09-20 12:03:47,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:03:47,966 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-09-20 12:03:47,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-20 12:03:47,968 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 12:03:47,968 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 12:03:47,968 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 12:03:47,970 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 12:03:47,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:03:47,972 INFO L85 PathProgramCache]: Analyzing trace with hash -990730179, now seen corresponding path program 1 times [2024-09-20 12:03:47,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 12:03:47,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74956005] [2024-09-20 12:03:47,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:03:47,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 12:03:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:03:48,243 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 12:03:48,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:03:48,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:03:48,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 12:03:48,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74956005] [2024-09-20 12:03:48,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74956005] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 12:03:48,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574100058] [2024-09-20 12:03:48,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 12:03:48,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 12:03:48,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 12:03:48,257 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) [2024-09-20 12:03:48,259 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 12:03:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 12:03:48,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-20 12:03:48,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 12:03:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:03:48,427 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 12:03:48,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 12:03:48,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574100058] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-20 12:03:48,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-20 12:03:48,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-09-20 12:03:48,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526807359] [2024-09-20 12:03:48,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-20 12:03:48,562 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-20 12:03:48,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 12:03:48,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-20 12:03:48,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-09-20 12:03:48,565 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:03:48,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 12:03:48,630 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2024-09-20 12:03:48,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-20 12:03:48,630 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-20 12:03:48,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 12:03:48,631 INFO L225 Difference]: With dead ends: 15 [2024-09-20 12:03:48,631 INFO L226 Difference]: Without dead ends: 0 [2024-09-20 12:03:48,632 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-09-20 12:03:48,636 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 12:03:48,637 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 12:03:48,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-20 12:03:48,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-20 12:03:48,640 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) [2024-09-20 12:03:48,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-20 12:03:48,640 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2024-09-20 12:03:48,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 12:03:48,642 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-20 12:03:48,642 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 1.4) internal successors, (14), 10 states have internal predecessors, (14), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 12:03:48,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 12:03:48,643 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-20 12:03:48,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-20 12:03:48,646 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-20 12:03:48,661 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-20 12:03:48,848 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 [2024-09-20 12:03:48,852 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-20 12:03:48,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-20 12:03:48,938 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 12:03:48,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:03:48 BoogieIcfgContainer [2024-09-20 12:03:48,960 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 12:03:48,961 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-20 12:03:48,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-20 12:03:48,961 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-20 12:03:48,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:03:47" (3/4) ... [2024-09-20 12:03:48,963 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-20 12:03:49,020 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-20 12:03:49,021 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-20 12:03:49,021 INFO L158 Benchmark]: Toolchain (without parser) took 2258.67ms. Allocated memory is still 182.5MB. Free memory was 112.8MB in the beginning and 90.5MB in the end (delta: 22.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2024-09-20 12:03:49,022 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 182.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 12:03:49,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 234.87ms. Allocated memory is still 182.5MB. Free memory was 112.6MB in the beginning and 101.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 12:03:49,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.65ms. Allocated memory is still 182.5MB. Free memory was 101.1MB in the beginning and 100.3MB in the end (delta: 839.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 12:03:49,026 INFO L158 Benchmark]: Boogie Preprocessor took 43.47ms. Allocated memory is still 182.5MB. Free memory was 100.3MB in the beginning and 98.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 12:03:49,026 INFO L158 Benchmark]: RCFGBuilder took 373.29ms. Allocated memory is still 182.5MB. Free memory was 98.5MB in the beginning and 145.0MB in the end (delta: -46.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 12:03:49,027 INFO L158 Benchmark]: TraceAbstraction took 1518.67ms. Allocated memory is still 182.5MB. Free memory was 144.3MB in the beginning and 92.6MB in the end (delta: 51.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-09-20 12:03:49,027 INFO L158 Benchmark]: Witness Printer took 60.12ms. Allocated memory is still 182.5MB. Free memory was 92.6MB in the beginning and 90.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 12:03:49,033 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 182.5MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 234.87ms. Allocated memory is still 182.5MB. Free memory was 112.6MB in the beginning and 101.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.65ms. Allocated memory is still 182.5MB. Free memory was 101.1MB in the beginning and 100.3MB in the end (delta: 839.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.47ms. Allocated memory is still 182.5MB. Free memory was 100.3MB in the beginning and 98.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.29ms. Allocated memory is still 182.5MB. Free memory was 98.5MB in the beginning and 145.0MB in the end (delta: -46.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1518.67ms. Allocated memory is still 182.5MB. Free memory was 144.3MB in the beginning and 92.6MB in the end (delta: 51.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 60.12ms. Allocated memory is still 182.5MB. Free memory was 92.6MB in the beginning and 90.5MB 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.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: 19]: 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 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 40 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 24 mSDtfsCounter, 40 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 2 NumberOfNonLiveVariables, 45 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: 29]: Loop Invariant Derived loop invariant: ((x < 0) || (0 < y)) - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (1 <= \old(cond)) Ensures: (1 <= \old(cond)) RESULT: Ultimate proved your program to be correct! [2024-09-20 12:03:49,077 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE