./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/loopv1.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 ca4ee3dd 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-crafted-1/loopv1.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 ca45dd6499a33c329d4936fe2abf573a615c1738e62276020fbb87860c7f9abc --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-ca4ee3d-m [2024-09-20 18:52:17,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 18:52:17,273 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 18:52:17,276 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 18:52:17,276 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 18:52:17,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 18:52:17,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 18:52:17,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 18:52:17,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 18:52:17,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 18:52:17,291 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 18:52:17,292 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 18:52:17,292 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 18:52:17,292 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 18:52:17,293 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 18:52:17,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 18:52:17,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 18:52:17,293 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 18:52:17,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 18:52:17,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 18:52:17,294 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 18:52:17,295 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 18:52:17,295 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 18:52:17,295 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 18:52:17,295 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 18:52:17,296 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 18:52:17,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 18:52:17,296 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 18:52:17,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 18:52:17,297 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 18:52:17,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 18:52:17,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 18:52:17,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 18:52:17,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 18:52:17,298 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 18:52:17,298 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 18:52:17,302 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 18:52:17,302 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 18:52:17,303 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 18:52:17,303 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 18:52:17,303 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 18:52:17,303 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 18:52:17,303 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca45dd6499a33c329d4936fe2abf573a615c1738e62276020fbb87860c7f9abc Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false [2024-09-20 18:52:17,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 18:52:17,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 18:52:17,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 18:52:17,549 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 18:52:17,550 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 18:52:17,551 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops-crafted-1/loopv1.c [2024-09-20 18:52:18,682 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 18:52:18,839 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 18:52:18,839 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops-crafted-1/loopv1.c [2024-09-20 18:52:18,847 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/bcd12f029/ceb668cb53df446daa81ef66c7137130/FLAG3409d1c04 [2024-09-20 18:52:18,861 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/bcd12f029/ceb668cb53df446daa81ef66c7137130 [2024-09-20 18:52:18,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 18:52:18,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-20 18:52:18,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 18:52:18,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 18:52:18,874 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 18:52:18,875 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:52:18" (1/1) ... [2024-09-20 18:52:18,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f23e6f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:18, skipping insertion in model container [2024-09-20 18:52:18,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:52:18" (1/1) ... [2024-09-20 18:52:18,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 18:52:19,017 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-crafted-1/loopv1.c[456,469] [2024-09-20 18:52:19,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 18:52:19,043 INFO L200 MainTranslator]: Completed pre-run [2024-09-20 18:52:19,058 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-crafted-1/loopv1.c[456,469] [2024-09-20 18:52:19,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 18:52:19,075 INFO L204 MainTranslator]: Completed translation [2024-09-20 18:52:19,076 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19 WrapperNode [2024-09-20 18:52:19,076 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 18:52:19,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 18:52:19,077 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 18:52:19,077 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 18:52:19,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,111 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-20 18:52:19,112 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 18:52:19,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 18:52:19,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 18:52:19,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 18:52:19,122 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,123 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,130 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-09-20 18:52:19,131 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,131 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,133 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,142 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,143 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 18:52:19,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 18:52:19,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 18:52:19,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 18:52:19,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (1/1) ... [2024-09-20 18:52:19,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 18:52:19,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 18:52:19,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-20 18:52:19,174 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-20 18:52:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 18:52:19,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-20 18:52:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-20 18:52:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 18:52:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-20 18:52:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-20 18:52:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 18:52:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 18:52:19,208 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-20 18:52:19,208 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-20 18:52:19,256 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 18:52:19,258 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 18:52:19,372 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-09-20 18:52:19,372 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 18:52:19,393 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 18:52:19,393 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 18:52:19,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:52:19 BoogieIcfgContainer [2024-09-20 18:52:19,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 18:52:19,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 18:52:19,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 18:52:19,397 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 18:52:19,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 06:52:18" (1/3) ... [2024-09-20 18:52:19,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525282b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 06:52:19, skipping insertion in model container [2024-09-20 18:52:19,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:52:19" (2/3) ... [2024-09-20 18:52:19,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@525282b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 06:52:19, skipping insertion in model container [2024-09-20 18:52:19,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:52:19" (3/3) ... [2024-09-20 18:52:19,399 INFO L112 eAbstractionObserver]: Analyzing ICFG loopv1.c [2024-09-20 18:52:19,412 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 18:52:19,412 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-20 18:52:19,448 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 18:52:19,453 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;@59023c4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 18:52:19,453 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-09-20 18:52:19,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-09-20 18:52:19,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-20 18:52:19,461 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 18:52:19,461 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 18:52:19,462 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 18:52:19,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 18:52:19,465 INFO L85 PathProgramCache]: Analyzing trace with hash 503327223, now seen corresponding path program 1 times [2024-09-20 18:52:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 18:52:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925494405] [2024-09-20 18:52:19,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 18:52:19,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 18:52:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 18:52:19,791 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 18:52:19,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 18:52:19,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 18:52:19,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 18:52:19,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925494405] [2024-09-20 18:52:19,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925494405] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 18:52:19,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 18:52:19,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-20 18:52:19,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947088239] [2024-09-20 18:52:19,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 18:52:19,805 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-20 18:52:19,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 18:52:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-20 18:52:19,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-20 18:52:19,825 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 13 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-09-20 18:52:19,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 18:52:19,966 INFO L93 Difference]: Finished difference Result 42 states and 52 transitions. [2024-09-20 18:52:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-20 18:52:19,967 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 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 11 [2024-09-20 18:52:19,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 18:52:19,972 INFO L225 Difference]: With dead ends: 42 [2024-09-20 18:52:19,972 INFO L226 Difference]: Without dead ends: 15 [2024-09-20 18:52:19,974 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-20 18:52:19,977 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 29 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-20 18:52:19,977 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-20 18:52:19,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-09-20 18:52:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2024-09-20 18:52:20,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 18:52:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2024-09-20 18:52:20,002 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2024-09-20 18:52:20,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 18:52:20,002 INFO L474 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2024-09-20 18:52:20,002 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 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) [2024-09-20 18:52:20,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 18:52:20,003 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-09-20 18:52:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-09-20 18:52:20,003 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 18:52:20,004 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 18:52:20,004 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 18:52:20,004 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-09-20 18:52:20,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 18:52:20,004 INFO L85 PathProgramCache]: Analyzing trace with hash -588063596, now seen corresponding path program 1 times [2024-09-20 18:52:20,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 18:52:20,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906264798] [2024-09-20 18:52:20,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 18:52:20,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 18:52:20,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 18:52:20,191 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-20 18:52:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 18:52:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 18:52:20,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 18:52:20,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906264798] [2024-09-20 18:52:20,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906264798] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-20 18:52:20,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793711027] [2024-09-20 18:52:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 18:52:20,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 18:52:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 18:52:20,197 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-20 18:52:20,198 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-20 18:52:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 18:52:20,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-20 18:52:20,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-20 18:52:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-20 18:52:20,294 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-20 18:52:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-20 18:52:20,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793711027] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-20 18:52:20,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-20 18:52:20,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 11 [2024-09-20 18:52:20,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131826737] [2024-09-20 18:52:20,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 18:52:20,393 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-20 18:52:20,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 18:52:20,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-20 18:52:20,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-09-20 18:52:20,395 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 18:52:20,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 18:52:20,420 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-09-20 18:52:20,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-20 18:52:20,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2024-09-20 18:52:20,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 18:52:20,421 INFO L225 Difference]: With dead ends: 14 [2024-09-20 18:52:20,421 INFO L226 Difference]: Without dead ends: 0 [2024-09-20 18:52:20,421 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-09-20 18:52:20,422 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 18:52:20,424 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 18:52:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-20 18:52:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-20 18:52:20,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-20 18:52:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-20 18:52:20,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-09-20 18:52:20,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 18:52:20,426 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-20 18:52:20,427 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-20 18:52:20,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 18:52:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-20 18:52:20,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-20 18:52:20,429 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-09-20 18:52:20,442 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-09-20 18:52:20,630 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-20 18:52:20,633 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-20 18:52:20,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-20 18:52:20,743 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 18:52:20,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 06:52:20 BoogieIcfgContainer [2024-09-20 18:52:20,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 18:52:20,755 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-20 18:52:20,755 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-20 18:52:20,758 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-20 18:52:20,758 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:52:19" (3/4) ... [2024-09-20 18:52:20,759 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-20 18:52:20,799 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-20 18:52:20,800 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-20 18:52:20,801 INFO L158 Benchmark]: Toolchain (without parser) took 1935.19ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 91.7MB in the beginning and 167.1MB in the end (delta: -75.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 18:52:20,801 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 18:52:20,804 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.83ms. Allocated memory is still 167.8MB. Free memory was 91.5MB in the beginning and 80.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-09-20 18:52:20,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.04ms. Allocated memory is still 167.8MB. Free memory was 80.3MB in the beginning and 138.7MB in the end (delta: -58.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2024-09-20 18:52:20,804 INFO L158 Benchmark]: Boogie Preprocessor took 32.63ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 139.5MB in the end (delta: -811.9kB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2024-09-20 18:52:20,804 INFO L158 Benchmark]: RCFGBuilder took 248.16ms. Allocated memory is still 167.8MB. Free memory was 139.5MB in the beginning and 133.6MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-09-20 18:52:20,805 INFO L158 Benchmark]: TraceAbstraction took 1359.74ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 133.6MB in the beginning and 169.3MB in the end (delta: -35.7MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2024-09-20 18:52:20,805 INFO L158 Benchmark]: Witness Printer took 45.34ms. Allocated memory is still 201.3MB. Free memory was 169.3MB in the beginning and 167.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 18:52:20,807 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 167.8MB. Free memory is still 136.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.83ms. Allocated memory is still 167.8MB. Free memory was 91.5MB in the beginning and 80.3MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.04ms. Allocated memory is still 167.8MB. Free memory was 80.3MB in the beginning and 138.7MB in the end (delta: -58.4MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.63ms. Allocated memory is still 167.8MB. Free memory was 138.7MB in the beginning and 139.5MB in the end (delta: -811.9kB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * RCFGBuilder took 248.16ms. Allocated memory is still 167.8MB. Free memory was 139.5MB in the beginning and 133.6MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1359.74ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 133.6MB in the beginning and 169.3MB in the end (delta: -35.7MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 45.34ms. Allocated memory is still 201.3MB. Free memory was 169.3MB in the beginning and 167.1MB 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: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, 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, 30 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 12 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 118 SizeOfPredicates, 1 NumberOfNonLiveVariables, 55 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: ((i % 3) == 0) - ProcedureContractResult [Line: 12]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-20 18:52:20,834 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