./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fb1cb0b9 Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 92b4501808affebdeca741bfd6f75263ab313d5eceb196bbb78aea107ecea6ed --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --traceabstraction.encode.modifies.clause.in.ensures.clause.of.contracts true --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.dk.referee-eval-fb1cb0b-m [2024-09-25 10:26:24,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-25 10:26:24,445 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-25 10:26:24,451 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-25 10:26:24,451 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-25 10:26:24,486 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-25 10:26:24,488 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-25 10:26:24,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-25 10:26:24,489 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-25 10:26:24,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-25 10:26:24,490 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-25 10:26:24,493 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-25 10:26:24,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-25 10:26:24,494 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-25 10:26:24,494 INFO L153 SettingsManager]: * Use SBE=true [2024-09-25 10:26:24,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-25 10:26:24,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-25 10:26:24,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-25 10:26:24,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-25 10:26:24,498 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-25 10:26:24,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-25 10:26:24,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-25 10:26:24,500 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-25 10:26:24,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-25 10:26:24,500 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-25 10:26:24,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-25 10:26:24,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-25 10:26:24,501 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-25 10:26:24,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-25 10:26:24,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-25 10:26:24,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-25 10:26:24,504 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-25 10:26:24,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 10:26:24,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-25 10:26:24,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-25 10:26:24,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-25 10:26:24,506 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-25 10:26:24,506 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-25 10:26:24,506 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-25 10:26:24,507 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-25 10:26:24,507 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-25 10:26:24,507 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-25 10:26:24,508 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 -> 92b4501808affebdeca741bfd6f75263ab313d5eceb196bbb78aea107ecea6ed Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Encode 'modifies' clause in 'ensures' clause of contracts -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-25 10:26:24,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-25 10:26:24,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-25 10:26:24,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-25 10:26:24,862 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-25 10:26:24,862 INFO L274 PluginConnector]: CDTParser initialized [2024-09-25 10:26:24,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2024-09-25 10:26:26,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-25 10:26:26,561 INFO L384 CDTParser]: Found 1 translation units. [2024-09-25 10:26:26,562 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2024-09-25 10:26:26,569 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/41ccdbe14/415699861103445dac2793d7bee338ef/FLAG583ced0b4 [2024-09-25 10:26:26,580 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/41ccdbe14/415699861103445dac2793d7bee338ef [2024-09-25 10:26:26,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-25 10:26:26,583 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-25 10:26:26,584 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-25 10:26:26,584 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-25 10:26:26,589 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-25 10:26:26,590 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234b85ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26, skipping insertion in model container [2024-09-25 10:26:26,591 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-25 10:26:26,776 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-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2024-09-25 10:26:26,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 10:26:26,796 INFO L200 MainTranslator]: Completed pre-run [2024-09-25 10:26:26,812 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-industry-pattern/mod3.c.v+cfa-reducer.c[1250,1263] [2024-09-25 10:26:26,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-25 10:26:26,832 INFO L204 MainTranslator]: Completed translation [2024-09-25 10:26:26,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26 WrapperNode [2024-09-25 10:26:26,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-25 10:26:26,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-25 10:26:26,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-25 10:26:26,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-25 10:26:26,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,859 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-25 10:26:26,859 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-25 10:26:26,860 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-25 10:26:26,860 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-25 10:26:26,860 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-25 10:26:26,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,877 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,895 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-25 10:26:26,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,903 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,904 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-25 10:26:26,908 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-25 10:26:26,908 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-25 10:26:26,909 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-25 10:26:26,909 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (1/1) ... [2024-09-25 10:26:26,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-25 10:26:26,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-25 10:26:26,943 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-25 10:26:26,949 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-25 10:26:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-25 10:26:26,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-25 10:26:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-25 10:26:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-25 10:26:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-25 10:26:26,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-25 10:26:26,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-25 10:26:26,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-25 10:26:27,061 INFO L241 CfgBuilder]: Building ICFG [2024-09-25 10:26:27,063 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-25 10:26:27,224 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-09-25 10:26:27,225 INFO L290 CfgBuilder]: Performing block encoding [2024-09-25 10:26:27,244 INFO L312 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-25 10:26:27,244 INFO L317 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-25 10:26:27,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:26:27 BoogieIcfgContainer [2024-09-25 10:26:27,245 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-25 10:26:27,246 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-25 10:26:27,246 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-25 10:26:27,249 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-25 10:26:27,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:26:26" (1/3) ... [2024-09-25 10:26:27,250 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356e7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:26:27, skipping insertion in model container [2024-09-25 10:26:27,250 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:26:26" (2/3) ... [2024-09-25 10:26:27,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356e7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:26:27, skipping insertion in model container [2024-09-25 10:26:27,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:26:27" (3/3) ... [2024-09-25 10:26:27,254 INFO L112 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2024-09-25 10:26:27,269 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-25 10:26:27,269 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-25 10:26:27,323 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-25 10:26:27,328 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;@2bc5edd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-25 10:26:27,329 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-25 10:26:27,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-25 10:26:27,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-25 10:26:27,338 INFO L208 NwaCegarLoop]: Found error trace [2024-09-25 10:26:27,338 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-25 10:26:27,338 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-25 10:26:27,342 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:26:27,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1779470644, now seen corresponding path program 1 times [2024-09-25 10:26:27,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-25 10:26:27,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844060172] [2024-09-25 10:26:27,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-25 10:26:27,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-25 10:26:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:26:27,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-25 10:26:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:26:27,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:26:27,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-25 10:26:27,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844060172] [2024-09-25 10:26:27,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844060172] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-25 10:26:27,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-25 10:26:27,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-25 10:26:27,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472431180] [2024-09-25 10:26:27,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-25 10:26:27,584 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-25 10:26:27,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-25 10:26:27,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-25 10:26:27,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-25 10:26:27,629 INFO L87 Difference]: Start difference. First operand has 18 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 13 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:26:27,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-25 10:26:27,734 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-09-25 10:26:27,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-25 10:26:27,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-25 10:26:27,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-25 10:26:27,746 INFO L225 Difference]: With dead ends: 33 [2024-09-25 10:26:27,746 INFO L226 Difference]: Without dead ends: 19 [2024-09-25 10:26:27,749 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-25 10:26:27,752 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 28 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-25 10:26:27,753 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 11 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-25 10:26:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-09-25 10:26:27,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 16. [2024-09-25 10:26:27,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:26:27,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2024-09-25 10:26:27,802 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2024-09-25 10:26:27,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-25 10:26:27,802 INFO L474 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2024-09-25 10:26:27,802 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:26:27,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:26:27,803 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-09-25 10:26:27,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-25 10:26:27,804 INFO L208 NwaCegarLoop]: Found error trace [2024-09-25 10:26:27,804 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-25 10:26:27,804 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-25 10:26:27,805 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-25 10:26:27,805 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:26:27,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1235744608, now seen corresponding path program 1 times [2024-09-25 10:26:27,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-25 10:26:27,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923938449] [2024-09-25 10:26:27,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-25 10:26:27,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-25 10:26:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:26:28,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-25 10:26:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:26:28,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:26:28,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-25 10:26:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923938449] [2024-09-25 10:26:28,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923938449] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-25 10:26:28,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1228205518] [2024-09-25 10:26:28,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-25 10:26:28,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-25 10:26:28,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-25 10:26:28,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-25 10:26:28,366 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-25 10:26:28,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-25 10:26:28,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-25 10:26:28,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-25 10:26:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:26:28,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-25 10:26:28,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-25 10:26:28,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1228205518] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-25 10:26:28,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-25 10:26:28,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6, 5] total 9 [2024-09-25 10:26:28,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64871738] [2024-09-25 10:26:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-25 10:26:28,970 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-25 10:26:28,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-25 10:26:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-25 10:26:28,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-25 10:26:28,971 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:26:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-25 10:26:29,027 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2024-09-25 10:26:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-25 10:26:29,027 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-09-25 10:26:29,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-25 10:26:29,028 INFO L225 Difference]: With dead ends: 28 [2024-09-25 10:26:29,028 INFO L226 Difference]: Without dead ends: 0 [2024-09-25 10:26:29,029 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-09-25 10:26:29,030 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-25 10:26:29,030 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 35 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-25 10:26:29,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-25 10:26:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-25 10:26:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-25 10:26:29,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-25 10:26:29,032 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-09-25 10:26:29,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-25 10:26:29,032 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-25 10:26:29,032 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-25 10:26:29,033 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-25 10:26:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-25 10:26:29,033 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-25 10:26:29,035 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-25 10:26:29,052 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-25 10:26:29,240 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-25 10:26:29,244 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-25 10:26:29,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-25 10:26:29,361 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-25 10:26:29,380 WARN L156 FloydHoareUtils]: Requires clause for main contained old-variable. Original clause: (= |old(~__return_107~0)| ~__return_107~0) Eliminated clause: true [2024-09-25 10:26:29,383 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-09-25 10:26:29,384 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #length [2024-09-25 10:26:29,384 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-09-25 10:26:29,385 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-09-25 10:26:29,385 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-09-25 10:26:29,385 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int#0 [2024-09-25 10:26:29,386 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-09-25 10:26:29,386 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-09-25 10:26:29,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:26:29 BoogieIcfgContainer [2024-09-25 10:26:29,387 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-25 10:26:29,388 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-25 10:26:29,388 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-25 10:26:29,389 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-25 10:26:29,389 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:26:27" (3/4) ... [2024-09-25 10:26:29,392 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-25 10:26:29,445 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-25 10:26:29,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-25 10:26:29,449 INFO L158 Benchmark]: Toolchain (without parser) took 2863.39ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 39.2MB in the beginning and 47.6MB in the end (delta: -8.4MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2024-09-25 10:26:29,449 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 10:26:29,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.22ms. Allocated memory is still 71.3MB. Free memory was 39.0MB in the beginning and 45.5MB in the end (delta: -6.5MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-09-25 10:26:29,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.57ms. Allocated memory is still 71.3MB. Free memory was 45.5MB in the beginning and 44.7MB in the end (delta: 840.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 10:26:29,454 INFO L158 Benchmark]: Boogie Preprocessor took 46.97ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 43.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-25 10:26:29,454 INFO L158 Benchmark]: RCFGBuilder took 336.92ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 50.5MB in the end (delta: -7.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-09-25 10:26:29,455 INFO L158 Benchmark]: TraceAbstraction took 2141.19ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 49.9MB in the beginning and 49.7MB in the end (delta: 154.9kB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-09-25 10:26:29,455 INFO L158 Benchmark]: Witness Printer took 57.78ms. Allocated memory is still 86.0MB. Free memory was 49.7MB in the beginning and 47.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-25 10:26:29,457 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 54.5MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.22ms. Allocated memory is still 71.3MB. Free memory was 39.0MB in the beginning and 45.5MB in the end (delta: -6.5MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.57ms. Allocated memory is still 71.3MB. Free memory was 45.5MB in the beginning and 44.7MB in the end (delta: 840.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.97ms. Allocated memory is still 71.3MB. Free memory was 44.7MB in the beginning and 43.0MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 336.92ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 50.5MB in the end (delta: -7.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2141.19ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 49.9MB in the beginning and 49.7MB in the end (delta: 154.9kB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * Witness Printer took 57.78ms. Allocated memory is still 86.0MB. Free memory was 49.7MB in the beginning and 47.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #length - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int#0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 63]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 20 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 265 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/6 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: 10]: Location Invariant Derived location invariant: ((((main__x % 3) <= 0) && (\old(__return_107) == __return_107)) || ((main__y == 1) && (\old(__return_107) == __return_107))) - ProcedureContractResult [Line: 9]: Procedure Contract for main Derived contract for procedure main. Ensures: (__return_main == \old(__return_main)) RESULT: Ultimate proved your program to be correct! [2024-09-25 10:26:29,485 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE