./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops/trex02-1.c --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 de325976 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/loops/trex02-1.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 f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 --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-de32597-m [2024-09-18 15:31:10,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-18 15:31:10,814 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-18 15:31:10,819 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-18 15:31:10,820 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-18 15:31:10,846 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-18 15:31:10,847 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-18 15:31:10,847 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-18 15:31:10,848 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-18 15:31:10,853 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-18 15:31:10,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-18 15:31:10,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-18 15:31:10,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-18 15:31:10,854 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-18 15:31:10,855 INFO L153 SettingsManager]: * Use SBE=true [2024-09-18 15:31:10,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-18 15:31:10,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-18 15:31:10,855 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-18 15:31:10,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-18 15:31:10,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-18 15:31:10,858 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-18 15:31:10,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-18 15:31:10,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-18 15:31:10,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-18 15:31:10,859 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-18 15:31:10,859 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-18 15:31:10,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-18 15:31:10,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-18 15:31:10,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-18 15:31:10,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-18 15:31:10,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-18 15:31:10,861 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-18 15:31:10,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-18 15:31:10,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-18 15:31:10,863 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-18 15:31:10,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-18 15:31:10,863 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-18 15:31:10,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-18 15:31:10,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-18 15:31:10,864 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-18 15:31:10,864 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-18 15:31:10,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-18 15:31:10,865 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8f2b0fe07eaaf370138039a17933ca03641a0ac6eda79ccb91fdfa5c5cca256 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-18 15:31:11,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-18 15:31:11,150 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-18 15:31:11,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-18 15:31:11,155 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-18 15:31:11,156 INFO L274 PluginConnector]: CDTParser initialized [2024-09-18 15:31:11,157 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/trex02-1.c [2024-09-18 15:31:12,584 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-18 15:31:12,753 INFO L384 CDTParser]: Found 1 translation units. [2024-09-18 15:31:12,753 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/trex02-1.c [2024-09-18 15:31:12,760 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d59ea3016/c2c88587bfa349138267e00e4045b32b/FLAG7e3719fd4 [2024-09-18 15:31:13,165 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d59ea3016/c2c88587bfa349138267e00e4045b32b [2024-09-18 15:31:13,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-18 15:31:13,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-18 15:31:13,170 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-18 15:31:13,171 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-18 15:31:13,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-18 15:31:13,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@166594b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13, skipping insertion in model container [2024-09-18 15:31:13,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-18 15:31:13,340 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/loops/trex02-1.c[320,333] [2024-09-18 15:31:13,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-18 15:31:13,374 INFO L200 MainTranslator]: Completed pre-run [2024-09-18 15:31:13,386 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/loops/trex02-1.c[320,333] [2024-09-18 15:31:13,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-18 15:31:13,408 INFO L204 MainTranslator]: Completed translation [2024-09-18 15:31:13,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13 WrapperNode [2024-09-18 15:31:13,409 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-18 15:31:13,410 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-18 15:31:13,411 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-18 15:31:13,411 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-18 15:31:13,417 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,430 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-18 15:31:13,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-18 15:31:13,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-18 15:31:13,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-18 15:31:13,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-18 15:31:13,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,441 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,442 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,458 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]. [2024-09-18 15:31:13,458 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,461 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,465 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-18 15:31:13,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-18 15:31:13,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-18 15:31:13,473 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-18 15:31:13,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (1/1) ... [2024-09-18 15:31:13,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-18 15:31:13,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-18 15:31:13,511 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) [2024-09-18 15:31:13,528 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 [2024-09-18 15:31:13,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-18 15:31:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-09-18 15:31:13,576 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-09-18 15:31:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-18 15:31:13,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-18 15:31:13,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-18 15:31:13,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-18 15:31:13,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-18 15:31:13,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-18 15:31:13,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-18 15:31:13,579 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-18 15:31:13,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-18 15:31:13,629 INFO L242 CfgBuilder]: Building ICFG [2024-09-18 15:31:13,631 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-18 15:31:13,751 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-09-18 15:31:13,755 INFO L291 CfgBuilder]: Performing block encoding [2024-09-18 15:31:13,781 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-18 15:31:13,782 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-18 15:31:13,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:31:13 BoogieIcfgContainer [2024-09-18 15:31:13,783 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-18 15:31:13,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-18 15:31:13,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-18 15:31:13,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-18 15:31:13,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 03:31:13" (1/3) ... [2024-09-18 15:31:13,797 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134bfcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 03:31:13, skipping insertion in model container [2024-09-18 15:31:13,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 03:31:13" (2/3) ... [2024-09-18 15:31:13,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134bfcfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 03:31:13, skipping insertion in model container [2024-09-18 15:31:13,801 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:31:13" (3/3) ... [2024-09-18 15:31:13,802 INFO L112 eAbstractionObserver]: Analyzing ICFG trex02-1.c [2024-09-18 15:31:13,823 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-18 15:31:13,823 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-18 15:31:13,866 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-18 15:31:13,873 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;@9846715, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-18 15:31:13,873 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-18 15:31:13,876 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-09-18 15:31:13,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-18 15:31:13,882 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 15:31:13,883 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 15:31:13,883 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 15:31:13,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 15:31:13,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1589780687, now seen corresponding path program 1 times [2024-09-18 15:31:13,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 15:31:13,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953929768] [2024-09-18 15:31:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 15:31:13,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 15:31:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 15:31:14,055 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 15:31:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 15:31:14,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-18 15:31:14,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 15:31:14,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953929768] [2024-09-18 15:31:14,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953929768] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-18 15:31:14,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-18 15:31:14,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-18 15:31:14,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127922652] [2024-09-18 15:31:14,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 15:31:14,082 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-18 15:31:14,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 15:31:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-18 15:31:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-18 15:31:14,108 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 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) [2024-09-18 15:31:14,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 15:31:14,169 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2024-09-18 15:31:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-18 15:31:14,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 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) Word has length 10 [2024-09-18 15:31:14,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 15:31:14,177 INFO L225 Difference]: With dead ends: 34 [2024-09-18 15:31:14,177 INFO L226 Difference]: Without dead ends: 17 [2024-09-18 15:31:14,179 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-18 15:31:14,182 INFO L434 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-18 15:31:14,183 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-18 15:31:14,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-09-18 15:31:14,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-09-18 15:31:14,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 5 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-18 15:31:14,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-09-18 15:31:14,215 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 10 [2024-09-18 15:31:14,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 15:31:14,215 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-09-18 15:31:14,216 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 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) [2024-09-18 15:31:14,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 15:31:14,216 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-09-18 15:31:14,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-18 15:31:14,218 INFO L208 NwaCegarLoop]: Found error trace [2024-09-18 15:31:14,218 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-18 15:31:14,218 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-18 15:31:14,218 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-18 15:31:14,219 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 15:31:14,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1577774914, now seen corresponding path program 1 times [2024-09-18 15:31:14,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-18 15:31:14,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495928682] [2024-09-18 15:31:14,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-18 15:31:14,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-18 15:31:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 15:31:14,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-18 15:31:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-18 15:31:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-18 15:31:14,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-18 15:31:14,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495928682] [2024-09-18 15:31:14,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495928682] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-18 15:31:14,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-18 15:31:14,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-18 15:31:14,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351100347] [2024-09-18 15:31:14,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-18 15:31:14,411 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-18 15:31:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-18 15:31:14,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-18 15:31:14,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-18 15:31:14,414 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 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) [2024-09-18 15:31:14,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-18 15:31:14,568 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2024-09-18 15:31:14,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-18 15:31:14,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 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) Word has length 10 [2024-09-18 15:31:14,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-18 15:31:14,570 INFO L225 Difference]: With dead ends: 17 [2024-09-18 15:31:14,570 INFO L226 Difference]: Without dead ends: 0 [2024-09-18 15:31:14,570 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-09-18 15:31:14,572 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-18 15:31:14,573 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 53 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-18 15:31:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-18 15:31:14,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-18 15:31:14,576 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) [2024-09-18 15:31:14,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-18 15:31:14,576 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2024-09-18 15:31:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-18 15:31:14,577 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-18 15:31:14,577 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 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) [2024-09-18 15:31:14,577 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-18 15:31:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-18 15:31:14,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-18 15:31:14,581 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-18 15:31:14,582 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-18 15:31:14,585 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-18 15:31:14,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-18 15:31:14,702 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-18 15:31:14,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 03:31:14 BoogieIcfgContainer [2024-09-18 15:31:14,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-18 15:31:14,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-18 15:31:14,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-18 15:31:14,727 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-18 15:31:14,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 03:31:13" (3/4) ... [2024-09-18 15:31:14,730 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-18 15:31:14,785 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-18 15:31:14,786 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-18 15:31:14,786 INFO L158 Benchmark]: Toolchain (without parser) took 1617.28ms. Allocated memory is still 176.2MB. Free memory was 106.6MB in the beginning and 134.7MB in the end (delta: -28.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 15:31:14,787 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 176.2MB. Free memory was 133.4MB in the beginning and 133.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 15:31:14,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.66ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 95.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-18 15:31:14,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.87ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 94.3MB in the end (delta: 955.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 15:31:14,788 INFO L158 Benchmark]: Boogie Preprocessor took 40.79ms. Allocated memory is still 176.2MB. Free memory was 94.3MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-18 15:31:14,788 INFO L158 Benchmark]: RCFGBuilder took 310.99ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 138.1MB in the end (delta: -45.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-09-18 15:31:14,789 INFO L158 Benchmark]: TraceAbstraction took 939.73ms. Allocated memory is still 176.2MB. Free memory was 137.4MB in the beginning and 136.8MB in the end (delta: 581.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-18 15:31:14,789 INFO L158 Benchmark]: Witness Printer took 59.16ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 134.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-18 15:31:14,792 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 176.2MB. Free memory was 133.4MB in the beginning and 133.2MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.66ms. Allocated memory is still 176.2MB. Free memory was 106.4MB in the beginning and 95.2MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.87ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 94.3MB in the end (delta: 955.1kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.79ms. Allocated memory is still 176.2MB. Free memory was 94.3MB in the beginning and 92.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.99ms. Allocated memory is still 176.2MB. Free memory was 92.6MB in the beginning and 138.1MB in the end (delta: -45.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 939.73ms. Allocated memory is still 176.2MB. Free memory was 137.4MB in the beginning and 136.8MB in the end (delta: 581.3kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.16ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 134.7MB 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.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: 7]: 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 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 31 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (\old(x) <= 0) - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main. Requires: (x <= 0) Ensures: (\old(x) <= 0) - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((\old(cond) != 0) && (x <= 0)) Ensures: ((\old(cond) != 0) && (x <= 0)) RESULT: Ultimate proved your program to be correct! [2024-09-18 15:31:14,831 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