This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m [2024-09-20 13:30:08,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-20 13:30:08,153 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-20 13:30:08,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-20 13:30:08,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-20 13:30:08,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-20 13:30:08,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-20 13:30:08,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-20 13:30:08,191 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-20 13:30:08,192 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-20 13:30:08,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-20 13:30:08,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-20 13:30:08,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-20 13:30:08,195 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-20 13:30:08,195 INFO L153 SettingsManager]: * Use SBE=true [2024-09-20 13:30:08,198 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-20 13:30:08,198 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-20 13:30:08,199 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-20 13:30:08,199 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-20 13:30:08,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-20 13:30:08,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-20 13:30:08,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-20 13:30:08,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-20 13:30:08,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-20 13:30:08,200 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-20 13:30:08,201 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-20 13:30:08,201 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-20 13:30:08,201 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-20 13:30:08,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-20 13:30:08,202 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-20 13:30:08,202 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-20 13:30:08,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-20 13:30:08,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:30:08,202 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-20 13:30:08,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-20 13:30:08,203 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-20 13:30:08,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-20 13:30:08,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-20 13:30:08,205 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-20 13:30:08,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-20 13:30:08,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-20 13:30:08,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-20 13:30:08,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> None [2024-09-20 13:30:08,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-20 13:30:08,481 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-20 13:30:08,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-20 13:30:08,484 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-09-20 13:30:08,485 INFO L274 PluginConnector]: Witness Parser initialized [2024-09-20 13:30:08,487 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../results/automizer-verification-files/SV-COMP24_unreach-call/trex04.yml/witness-2.1.yml [2024-09-20 13:30:08,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-20 13:30:08,573 INFO L274 PluginConnector]: CDTParser initialized [2024-09-20 13:30:08,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loops/trex04.c [2024-09-20 13:30:10,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-20 13:30:10,250 INFO L384 CDTParser]: Found 1 translation units. [2024-09-20 13:30:10,250 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loops/trex04.c [2024-09-20 13:30:10,257 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/d6064bf5d/d018bf7dc2314384ae51e9851a96e778/FLAG8c55cc0bd [2024-09-20 13:30:10,640 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/d6064bf5d/d018bf7dc2314384ae51e9851a96e778 [2024-09-20 13:30:10,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-20 13:30:10,641 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-09-20 13:30:10,643 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-20 13:30:10,643 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-20 13:30:10,647 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-20 13:30:10,648 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:08" (1/2) ... [2024-09-20 13:30:10,648 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115dcd60 and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:30:10, skipping insertion in model container [2024-09-20 13:30:10,649 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:08" (1/2) ... [2024-09-20 13:30:10,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36fa6e9e and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.09 01:30:10, skipping insertion in model container [2024-09-20 13:30:10,650 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:10" (2/2) ... [2024-09-20 13:30:10,650 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@115dcd60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10, skipping insertion in model container [2024-09-20 13:30:10,651 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:10" (2/2) ... [2024-09-20 13:30:10,658 INFO L93 nessWitnessExtractor]: Found the following entries in the witness: [2024-09-20 13:30:10,658 INFO L1541 ArrayList]: Function contract at [L9]: requires (\old(cond) != 0), ensures (\old(cond) != 0) [2024-09-20 13:30:10,678 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-20 13:30:10,838 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/trex04.c[405,418] [2024-09-20 13:30:10,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:30:10,869 INFO L200 MainTranslator]: Completed pre-run Start Parsing Global Start Parsing Global [2024-09-20 13:30:10,899 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/trex04.c[405,418] [2024-09-20 13:30:10,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-20 13:30:10,925 INFO L204 MainTranslator]: Completed translation [2024-09-20 13:30:10,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10 WrapperNode [2024-09-20 13:30:10,925 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-20 13:30:10,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-20 13:30:10,927 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-20 13:30:10,927 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-20 13:30:10,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:10,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:10,963 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2024-09-20 13:30:10,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-20 13:30:10,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-20 13:30:10,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-20 13:30:10,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-20 13:30:10,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:10,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:10,980 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:10,999 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 13:30:10,999 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,003 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,006 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,012 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-20 13:30:11,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-20 13:30:11,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-20 13:30:11,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-20 13:30:11,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (1/1) ... [2024-09-20 13:30:11,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-20 13:30:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-20 13:30:11,045 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 13:30:11,052 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 13:30:11,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-20 13:30:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2024-09-20 13:30:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2024-09-20 13:30:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-20 13:30:11,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-20 13:30:11,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-20 13:30:11,158 INFO L242 CfgBuilder]: Building ICFG [2024-09-20 13:30:11,160 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-20 13:30:11,417 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-09-20 13:30:11,417 INFO L291 CfgBuilder]: Performing block encoding [2024-09-20 13:30:11,454 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-20 13:30:11,455 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-20 13:30:11,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:11 BoogieIcfgContainer [2024-09-20 13:30:11,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-20 13:30:11,459 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-20 13:30:11,460 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-20 13:30:11,463 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-20 13:30:11,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness-2.1.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.09 01:30:08" (1/4) ... [2024-09-20 13:30:11,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ce638a and model type witness-2.1.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.09 01:30:11, skipping insertion in model container [2024-09-20 13:30:11,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:10" (2/4) ... [2024-09-20 13:30:11,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ce638a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:11, skipping insertion in model container [2024-09-20 13:30:11,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:10" (3/4) ... [2024-09-20 13:30:11,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ce638a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:11, skipping insertion in model container [2024-09-20 13:30:11,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:11" (4/4) ... [2024-09-20 13:30:11,467 INFO L112 eAbstractionObserver]: Analyzing ICFG trex04.c [2024-09-20 13:30:11,484 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-20 13:30:11,484 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-09-20 13:30:11,529 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-20 13:30:11,537 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=None, 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;@5d739526, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-20 13:30:11,537 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-20 13:30:11,541 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 23 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-20 13:30:11,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-20 13:30:11,551 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:11,552 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:30:11,552 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-20 13:30:11,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:11,558 INFO L85 PathProgramCache]: Analyzing trace with hash -891123107, now seen corresponding path program 1 times [2024-09-20 13:30:11,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:11,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342792574] [2024-09-20 13:30:11,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:11,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:11,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:11,873 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 13:30:11,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:11,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342792574] [2024-09-20 13:30:11,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342792574] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:11,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:11,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 13:30:11,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382496407] [2024-09-20 13:30:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:11,882 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-20 13:30:11,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:11,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-20 13:30:11,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:30:11,907 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 23 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 13:30:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:11,964 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2024-09-20 13:30:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-20 13:30:11,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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) Word has length 10 [2024-09-20 13:30:11,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:11,976 INFO L225 Difference]: With dead ends: 23 [2024-09-20 13:30:11,976 INFO L226 Difference]: Without dead ends: 20 [2024-09-20 13:30:11,978 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-20 13:30:11,981 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:11,982 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 71 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 13:30:11,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-09-20 13:30:12,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-09-20 13:30:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-20 13:30:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2024-09-20 13:30:12,010 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 27 transitions. Word has length 10 [2024-09-20 13:30:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:12,010 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 27 transitions. [2024-09-20 13:30:12,011 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 13:30:12,011 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2024-09-20 13:30:12,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-20 13:30:12,013 INFO L208 NwaCegarLoop]: Found error trace [2024-09-20 13:30:12,013 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-20 13:30:12,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-20 13:30:12,013 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION] === [2024-09-20 13:30:12,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-20 13:30:12,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1670810880, now seen corresponding path program 1 times [2024-09-20 13:30:12,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-20 13:30:12,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302470504] [2024-09-20 13:30:12,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-20 13:30:12,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-20 13:30:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-20 13:30:12,139 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 13:30:12,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-20 13:30:12,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302470504] [2024-09-20 13:30:12,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302470504] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-20 13:30:12,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-20 13:30:12,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-20 13:30:12,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029815092] [2024-09-20 13:30:12,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-20 13:30:12,144 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-20 13:30:12,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-20 13:30:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-20 13:30:12,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:30:12,145 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 13:30:12,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-20 13:30:12,156 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2024-09-20 13:30:12,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-20 13:30:12,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) Word has length 12 [2024-09-20 13:30:12,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-20 13:30:12,157 INFO L225 Difference]: With dead ends: 18 [2024-09-20 13:30:12,157 INFO L226 Difference]: Without dead ends: 0 [2024-09-20 13:30:12,157 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-20 13:30:12,159 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-20 13:30:12,159 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-20 13:30:12,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-20 13:30:12,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-20 13:30:12,162 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 13:30:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-20 13:30:12,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2024-09-20 13:30:12,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-20 13:30:12,162 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-20 13:30:12,163 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 13:30:12,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-20 13:30:12,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-20 13:30:12,167 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONPRE_CONDITION (2 of 3 remaining) [2024-09-20 13:30:12,168 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2024-09-20 13:30:12,168 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONPOST_CONDITION (0 of 3 remaining) [2024-09-20 13:30:12,169 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-20 13:30:12,172 INFO L408 BasicCegarLoop]: Path program histogram: [1, 1] [2024-09-20 13:30:12,174 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-20 13:30:12,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:12 BoogieIcfgContainer [2024-09-20 13:30:12,178 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-20 13:30:12,179 INFO L158 Benchmark]: Toolchain (without parser) took 1537.54ms. Allocated memory is still 163.6MB. Free memory was 90.8MB in the beginning and 87.0MB in the end (delta: 3.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2024-09-20 13:30:12,179 INFO L158 Benchmark]: Witness Parser took 0.22ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:30:12,180 INFO L158 Benchmark]: CDTParser took 1.10ms. Allocated memory is still 163.6MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:30:12,182 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.02ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 77.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:30:12,182 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.18ms. Allocated memory is still 163.6MB. Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-20 13:30:12,182 INFO L158 Benchmark]: Boogie Preprocessor took 49.72ms. Allocated memory is still 163.6MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-20 13:30:12,183 INFO L158 Benchmark]: RCFGBuilder took 441.47ms. Allocated memory is still 163.6MB. Free memory was 73.9MB in the beginning and 126.9MB in the end (delta: -53.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-09-20 13:30:12,183 INFO L158 Benchmark]: TraceAbstraction took 719.14ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 87.0MB in the end (delta: 39.1MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-09-20 13:30:12,185 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.22ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 73.9MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.10ms. Allocated memory is still 163.6MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.02ms. Allocated memory is still 163.6MB. Free memory was 90.4MB in the beginning and 77.2MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.18ms. Allocated memory is still 163.6MB. Free memory was 77.2MB in the beginning and 75.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.72ms. Allocated memory is still 163.6MB. Free memory was 75.5MB in the beginning and 73.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.47ms. Allocated memory is still 163.6MB. Free memory was 73.9MB in the beginning and 126.9MB in the end (delta: -53.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 719.14ms. Allocated memory is still 163.6MB. Free memory was 126.1MB in the beginning and 87.0MB in the end (delta: 39.1MB). Peak memory consumption was 37.7MB. 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: 9]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 11]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 9]: procedure postcondition always holds For all program executions holds that procedure postcondition always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 50 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-20 13:30:12,224 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...