./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version e378df2c
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )
--witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1 --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 0.2.5-wip.dk.contract-modifies-e378df2-m
[2024-10-15 14:38:25,882 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-10-15 14:38:25,949 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-15 14:38:25,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-10-15 14:38:25,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-15 14:38:25,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-15 14:38:25,979 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-15 14:38:25,979 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-15 14:38:25,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-15 14:38:25,980 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-10-15 14:38:25,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-15 14:38:25,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-15 14:38:25,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-15 14:38:25,981 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-10-15 14:38:25,981 INFO L153 SettingsManager]: * Use SBE=true
[2024-10-15 14:38:25,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-15 14:38:25,981 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-10-15 14:38:25,981 INFO L153 SettingsManager]: * sizeof long=4
[2024-10-15 14:38:25,982 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-10-15 14:38:25,982 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-10-15 14:38:25,982 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-10-15 14:38:25,982 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-10-15 14:38:25,983 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-15 14:38:25,983 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-10-15 14:38:25,983 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-10-15 14:38:25,983 INFO L153 SettingsManager]: * sizeof long double=12
[2024-10-15 14:38:25,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-10-15 14:38:25,984 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-10-15 14:38:25,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-15 14:38:25,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-10-15 14:38:25,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-10-15 14:38:25,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-10-15 14:38:25,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-15 14:38:25,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-15 14:38:25,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-10-15 14:38:25,985 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-15 14:38:25,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-10-15 14:38:25,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-15 14:38:25,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-15 14:38:25,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-15 14:38:25,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-10-15 14:38:25,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-15 14:38:25,987 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b373cbe6be5259af58bbd621acc4a598f97350f51d1b5f9aaeeeabd984828c1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-10-15 14:38:26,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-15 14:38:26,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-15 14:38:26,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-15 14:38:26,192 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-10-15 14:38:26,193 INFO L274 PluginConnector]: CDTParser initialized
[2024-10-15 14:38:26,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i
[2024-10-15 14:38:27,452 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-10-15 14:38:27,595 INFO L384 CDTParser]: Found 1 translation units.
[2024-10-15 14:38:27,595 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/divbin2_unwindbound1.i
[2024-10-15 14:38:27,601 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/0a06bbc9e/4375849467ef40d99b0f80a3734863fe/FLAGbc351c9f3
[2024-10-15 14:38:28,021 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/0a06bbc9e/4375849467ef40d99b0f80a3734863fe
[2024-10-15 14:38:28,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-15 14:38:28,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-15 14:38:28,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-15 14:38:28,026 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-15 14:38:28,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-15 14:38:28,030 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d1bb07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28, skipping insertion in model container
[2024-10-15 14:38:28,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,049 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-10-15 14:38:28,193 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/nla-digbench-scaling/divbin2_unwindbound1.i[951,964]
[2024-10-15 14:38:28,208 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-10-15 14:38:28,215 INFO L200 MainTranslator]: Completed pre-run
[2024-10-15 14:38:28,224 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/nla-digbench-scaling/divbin2_unwindbound1.i[951,964]
[2024-10-15 14:38:28,229 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-10-15 14:38:28,250 INFO L204 MainTranslator]: Completed translation
[2024-10-15 14:38:28,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28 WrapperNode
[2024-10-15 14:38:28,254 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-15 14:38:28,255 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-15 14:38:28,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-15 14:38:28,258 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-15 14:38:28,263 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,285 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-10-15 14:38:28,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-15 14:38:28,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-15 14:38:28,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-15 14:38:28,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-10-15 14:38:28,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,305 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,326 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].
[2024-10-15 14:38:28,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-15 14:38:28,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-15 14:38:28,342 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-10-15 14:38:28,345 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-10-15 14:38:28,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (1/1) ...
[2024-10-15 14:38:28,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-15 14:38:28,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-10-15 14:38:28,389 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)
[2024-10-15 14:38:28,396 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
[2024-10-15 14:38:28,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-15 14:38:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-10-15 14:38:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-10-15 14:38:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-15 14:38:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-10-15 14:38:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-10-15 14:38:28,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-15 14:38:28,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-15 14:38:28,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-10-15 14:38:28,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-10-15 14:38:28,489 INFO L238 CfgBuilder]: Building ICFG
[2024-10-15 14:38:28,491 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-15 14:38:28,635 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live.
[2024-10-15 14:38:28,635 INFO L287 CfgBuilder]: Performing block encoding
[2024-10-15 14:38:28,653 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-15 14:38:28,657 INFO L314 CfgBuilder]: Removed 2 assume(true) statements.
[2024-10-15 14:38:28,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:28 BoogieIcfgContainer
[2024-10-15 14:38:28,658 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-15 14:38:28,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-15 14:38:28,659 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-10-15 14:38:28,661 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-10-15 14:38:28,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:38:28" (1/3) ...
[2024-10-15 14:38:28,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ee0f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:28, skipping insertion in model container
[2024-10-15 14:38:28,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:38:28" (2/3) ...
[2024-10-15 14:38:28,664 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ee0f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:38:28, skipping insertion in model container
[2024-10-15 14:38:28,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:28" (3/3) ...
[2024-10-15 14:38:28,665 INFO L112 eAbstractionObserver]: Analyzing ICFG divbin2_unwindbound1.i
[2024-10-15 14:38:28,676 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-15 14:38:28,677 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-15 14:38:28,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-15 14:38:28,725 INFO L333 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;@33c6d7a0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-15 14:38:28,725 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-15 14:38:28,728 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.6) internal successors, (24), 16 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4)
[2024-10-15 14:38:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2024-10-15 14:38:28,732 INFO L207 NwaCegarLoop]: Found error trace
[2024-10-15 14:38:28,733 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-15 14:38:28,733 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-15 14:38:28,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:28,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1996614108, now seen corresponding path program 1 times
[2024-10-15 14:38:28,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-15 14:38:28,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521148012]
[2024-10-15 14:38:28,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-15 14:38:28,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-15 14:38:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:28,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-10-15 14:38:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:28,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-15 14:38:28,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-15 14:38:28,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521148012]
[2024-10-15 14:38:28,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521148012] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-15 14:38:28,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-15 14:38:28,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-15 14:38:28,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85010391]
[2024-10-15 14:38:28,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-15 14:38:28,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-15 14:38:28,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-15 14:38:28,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-15 14:38:28,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-15 14:38:28,868 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.6) internal successors, (24), 16 states have internal predecessors, (24), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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)
[2024-10-15 14:38:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-15 14:38:28,947 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions.
[2024-10-15 14:38:28,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-10-15 14:38:28,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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
[2024-10-15 14:38:28,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-15 14:38:28,954 INFO L225 Difference]: With dead ends: 41
[2024-10-15 14:38:28,954 INFO L226 Difference]: Without dead ends: 21
[2024-10-15 14:38:28,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-15 14:38:28,964 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-15 14:38:28,964 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 34 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-15 14:38:28,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states.
[2024-10-15 14:38:28,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20.
[2024-10-15 14:38:28,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 14 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-10-15 14:38:28,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions.
[2024-10-15 14:38:28,988 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11
[2024-10-15 14:38:28,988 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-10-15 14:38:28,988 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions.
[2024-10-15 14:38:28,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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)
[2024-10-15 14:38:28,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:28,989 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions.
[2024-10-15 14:38:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-10-15 14:38:28,990 INFO L207 NwaCegarLoop]: Found error trace
[2024-10-15 14:38:28,990 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-15 14:38:28,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-15 14:38:28,990 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-15 14:38:28,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:28,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1251497910, now seen corresponding path program 1 times
[2024-10-15 14:38:28,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-15 14:38:28,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872836465]
[2024-10-15 14:38:28,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-15 14:38:28,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-15 14:38:29,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:29,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-10-15 14:38:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-15 14:38:29,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-15 14:38:29,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872836465]
[2024-10-15 14:38:29,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872836465] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-15 14:38:29,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-15 14:38:29,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-15 14:38:29,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094573228]
[2024-10-15 14:38:29,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-15 14:38:29,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-15 14:38:29,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-15 14:38:29,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-15 14:38:29,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-15 14:38:29,106 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-10-15 14:38:29,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-15 14:38:29,150 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions.
[2024-10-15 14:38:29,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2024-10-15 14:38:29,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13
[2024-10-15 14:38:29,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-15 14:38:29,151 INFO L225 Difference]: With dead ends: 34
[2024-10-15 14:38:29,151 INFO L226 Difference]: Without dead ends: 22
[2024-10-15 14:38:29,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-15 14:38:29,154 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 6 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-15 14:38:29,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 53 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-15 14:38:29,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-10-15 14:38:29,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2024-10-15 14:38:29,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2)
[2024-10-15 14:38:29,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions.
[2024-10-15 14:38:29,163 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13
[2024-10-15 14:38:29,163 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-10-15 14:38:29,163 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions.
[2024-10-15 14:38:29,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-10-15 14:38:29,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:29,168 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions.
[2024-10-15 14:38:29,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-10-15 14:38:29,168 INFO L207 NwaCegarLoop]: Found error trace
[2024-10-15 14:38:29,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-15 14:38:29,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-15 14:38:29,169 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-15 14:38:29,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:29,170 INFO L85 PathProgramCache]: Analyzing trace with hash -239317110, now seen corresponding path program 1 times
[2024-10-15 14:38:29,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-15 14:38:29,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107986996]
[2024-10-15 14:38:29,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-15 14:38:29,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-15 14:38:29,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:29,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-10-15 14:38:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:29,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-15 14:38:29,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-15 14:38:29,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107986996]
[2024-10-15 14:38:29,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107986996] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-15 14:38:29,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-15 14:38:29,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-10-15 14:38:29,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830510518]
[2024-10-15 14:38:29,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-15 14:38:29,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-10-15 14:38:29,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-15 14:38:29,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-10-15 14:38:29,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-10-15 14:38:29,339 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2024-10-15 14:38:29,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-15 14:38:29,412 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions.
[2024-10-15 14:38:29,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2024-10-15 14:38:29,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 14
[2024-10-15 14:38:29,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-15 14:38:29,413 INFO L225 Difference]: With dead ends: 31
[2024-10-15 14:38:29,413 INFO L226 Difference]: Without dead ends: 17
[2024-10-15 14:38:29,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90
[2024-10-15 14:38:29,414 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 16 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-15 14:38:29,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-15 14:38:29,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-10-15 14:38:29,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-10-15 14:38:29,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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)
[2024-10-15 14:38:29,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions.
[2024-10-15 14:38:29,421 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14
[2024-10-15 14:38:29,421 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-10-15 14:38:29,421 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions.
[2024-10-15 14:38:29,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 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)
[2024-10-15 14:38:29,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:29,422 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions.
[2024-10-15 14:38:29,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2024-10-15 14:38:29,422 INFO L207 NwaCegarLoop]: Found error trace
[2024-10-15 14:38:29,422 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-15 14:38:29,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-15 14:38:29,423 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-15 14:38:29,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:29,423 INFO L85 PathProgramCache]: Analyzing trace with hash -241104570, now seen corresponding path program 1 times
[2024-10-15 14:38:29,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-15 14:38:29,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180570229]
[2024-10-15 14:38:29,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-15 14:38:29,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-15 14:38:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown
[2024-10-15 14:38:29,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [965221199]
[2024-10-15 14:38:29,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-15 14:38:29,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-15 14:38:29,435 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-10-15 14:38:29,436 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)
[2024-10-15 14:38:29,441 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-10-15 14:38:29,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-15 14:38:29,477 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-10-15 14:38:29,480 INFO L278 TraceCheckSpWp]: Computing forward predicates...
[2024-10-15 14:38:29,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-15 14:38:29,530 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-10-15 14:38:29,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-15 14:38:29,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180570229]
[2024-10-15 14:38:29,531 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2024-10-15 14:38:29,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965221199]
[2024-10-15 14:38:29,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [965221199] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-15 14:38:29,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-15 14:38:29,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-15 14:38:29,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4530232]
[2024-10-15 14:38:29,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-15 14:38:29,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-15 14:38:29,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-15 14:38:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-15 14:38:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-15 14:38:29,533 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-10-15 14:38:29,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-15 14:38:29,547 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions.
[2024-10-15 14:38:29,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-10-15 14:38:29,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 14
[2024-10-15 14:38:29,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-15 14:38:29,548 INFO L225 Difference]: With dead ends: 17
[2024-10-15 14:38:29,548 INFO L226 Difference]: Without dead ends: 0
[2024-10-15 14:38:29,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-15 14:38:29,549 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-15 14:38:29,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-15 14:38:29,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-10-15 14:38:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-10-15 14:38:29,550 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)
[2024-10-15 14:38:29,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-10-15 14:38:29,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14
[2024-10-15 14:38:29,551 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-10-15 14:38:29,551 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-10-15 14:38:29,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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)
[2024-10-15 14:38:29,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier
[2024-10-15 14:38:29,552 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-10-15 14:38:29,552 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-10-15 14:38:29,554 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-10-15 14:38:29,566 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-10-15 14:38:29,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-15 14:38:29,758 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1]
[2024-10-15 14:38:29,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-10-15 14:38:29,926 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-10-15 14:38:29,939 WARN L156 FloydHoareUtils]: Requires clause for main contained old-variable. Original clause: (and (= ~counter~0 0) (= |old(~counter~0)| 0)) Eliminated clause: (= ~counter~0 0)
[2024-10-15 14:38:29,946 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:38:29 BoogieIcfgContainer
[2024-10-15 14:38:29,947 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-10-15 14:38:29,948 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-10-15 14:38:29,948 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-10-15 14:38:29,948 INFO L274 PluginConnector]: Witness Printer initialized
[2024-10-15 14:38:29,949 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:38:28" (3/4) ...
[2024-10-15 14:38:29,950 INFO L139 WitnessPrinter]: Generating witness for correct program
[2024-10-15 14:38:29,993 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-10-15 14:38:29,993 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-10-15 14:38:29,994 INFO L158 Benchmark]: Toolchain (without parser) took 1969.08ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 70.3MB in the end (delta: 42.8MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB.
[2024-10-15 14:38:29,994 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-10-15 14:38:29,994 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.60ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 100.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-10-15 14:38:29,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.77ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
[2024-10-15 14:38:29,994 INFO L158 Benchmark]: Boogie Preprocessor took 51.03ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-10-15 14:38:29,995 INFO L158 Benchmark]: RCFGBuilder took 316.24ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 85.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
[2024-10-15 14:38:29,995 INFO L158 Benchmark]: TraceAbstraction took 1288.53ms. Allocated memory is still 167.8MB. Free memory was 84.2MB in the beginning and 73.5MB in the end (delta: 10.7MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB.
[2024-10-15 14:38:29,995 INFO L158 Benchmark]: Witness Printer took 45.32ms. Allocated memory is still 167.8MB. Free memory was 73.5MB in the beginning and 70.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2024-10-15 14:38:29,997 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 131.0MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 228.60ms. Allocated memory is still 167.8MB. Free memory was 113.1MB in the beginning and 100.4MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 34.77ms. Allocated memory is still 167.8MB. Free memory was 100.4MB in the beginning and 99.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 51.03ms. Allocated memory is still 167.8MB. Free memory was 99.3MB in the beginning and 97.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 316.24ms. Allocated memory is still 167.8MB. Free memory was 97.8MB in the beginning and 85.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB.
* TraceAbstraction took 1288.53ms. Allocated memory is still 167.8MB. Free memory was 84.2MB in the beginning and 73.5MB in the end (delta: 10.7MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB.
* Witness Printer took 45.32ms. Allocated memory is still 167.8MB. Free memory was 73.5MB in the beginning and 70.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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: 21]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 56 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 1 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 34]: Loop Invariant
Derived loop invariant: ((\old(counter) == 0) && ((((A == r) && (counter == 0)) && (q == 0)) || (((A == r) && (1 <= counter)) && (q == 0))))
- InvariantResult [Line: 38]: Loop Invariant
Derived loop invariant: ((((A == r) && (1 <= counter)) && (\old(counter) == 0)) && (q == 0))
- ProcedureContractResult [Line: 26]: Procedure Contract for main
Derived contract for procedure main. Requires: (counter == 0) Ensures: (\old(counter) == 0)
- ProcedureContractResult [Line: 18]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: ((1 <= counter) && (1 <= cond)) Ensures: (((1 <= counter) && (1 <= cond)) && (counter == \old(counter)))
RESULT: Ultimate proved your program to be correct!
[2024-10-15 14:38:30,020 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE