./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/ddlm2013.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 f1d7dc9d
Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/ddlm2013.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 65bd222d84b3d0ffad0fae15432ef5f02ecc91b1ed6d337cf01ace7c551e4ada --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --witnessprinter.generate.graphml.witnesses false
--- Real Ultimate output ---
This is Ultimate 0.2.4-tmp.dk.referee-eval-f1d7dc9-m
[2024-09-20 12:02:59,037 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2024-09-20 12:02:59,102 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-09-20 12:02:59,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2024-09-20 12:02:59,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-09-20 12:02:59,127 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2024-09-20 12:02:59,128 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-09-20 12:02:59,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-09-20 12:02:59,129 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-09-20 12:02:59,129 INFO L153 SettingsManager]: * Use memory slicer=true
[2024-09-20 12:02:59,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-09-20 12:02:59,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-09-20 12:02:59,130 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-09-20 12:02:59,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2024-09-20 12:02:59,131 INFO L153 SettingsManager]: * Use SBE=true
[2024-09-20 12:02:59,131 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-09-20 12:02:59,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2024-09-20 12:02:59,134 INFO L153 SettingsManager]: * sizeof long=4
[2024-09-20 12:02:59,134 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2024-09-20 12:02:59,135 INFO L153 SettingsManager]: * sizeof POINTER=4
[2024-09-20 12:02:59,135 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2024-09-20 12:02:59,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2024-09-20 12:02:59,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-09-20 12:02:59,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2024-09-20 12:02:59,139 INFO L153 SettingsManager]: * Allow undefined functions=false
[2024-09-20 12:02:59,139 INFO L153 SettingsManager]: * sizeof long double=12
[2024-09-20 12:02:59,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2024-09-20 12:02:59,139 INFO L153 SettingsManager]: * Use constant arrays=true
[2024-09-20 12:02:59,139 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-09-20 12:02:59,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2024-09-20 12:02:59,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2024-09-20 12:02:59,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2024-09-20 12:02:59,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 12:02:59,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-09-20 12:02:59,140 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2024-09-20 12:02:59,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2024-09-20 12:02:59,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2024-09-20 12:02:59,141 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-09-20 12:02:59,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2024-09-20 12:02:59,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2024-09-20 12:02:59,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2024-09-20 12:02:59,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2024-09-20 12:02:59,143 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65bd222d84b3d0ffad0fae15432ef5f02ecc91b1ed6d337cf01ace7c551e4ada
Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Generate GraphML witnesses -> false
[2024-09-20 12:02:59,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2024-09-20 12:02:59,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-09-20 12:02:59,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-09-20 12:02:59,370 INFO L270 PluginConnector]: Initializing CDTParser...
[2024-09-20 12:02:59,370 INFO L274 PluginConnector]: CDTParser initialized
[2024-09-20 12:02:59,371 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/ddlm2013.i
[2024-09-20 12:03:00,619 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2024-09-20 12:03:00,842 INFO L384 CDTParser]: Found 1 translation units.
[2024-09-20 12:03:00,842 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/ddlm2013.i
[2024-09-20 12:03:00,851 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/a3dd8be35/19dbe1162d00415aa75f12c128515c86/FLAG186286445
[2024-09-20 12:03:01,211 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/a3dd8be35/19dbe1162d00415aa75f12c128515c86
[2024-09-20 12:03:01,213 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-09-20 12:03:01,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2024-09-20 12:03:01,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-09-20 12:03:01,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-09-20 12:03:01,222 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2024-09-20 12:03:01,222 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470b4502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01, skipping insertion in model container
[2024-09-20 12:03:01,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,240 INFO L175 MainTranslator]: Built tables and reachable declarations
[2024-09-20 12:03:01,391 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/ddlm2013.i[895,908]
[2024-09-20 12:03:01,414 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 12:03:01,419 INFO L200 MainTranslator]: Completed pre-run
[2024-09-20 12:03:01,427 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/ddlm2013.i[895,908]
[2024-09-20 12:03:01,430 INFO L210 PostProcessor]: Analyzing one entry point: main
[2024-09-20 12:03:01,442 INFO L204 MainTranslator]: Completed translation
[2024-09-20 12:03:01,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01 WrapperNode
[2024-09-20 12:03:01,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-09-20 12:03:01,443 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-09-20 12:03:01,443 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-09-20 12:03:01,443 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2024-09-20 12:03:01,448 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,456 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2024-09-20 12:03:01,457 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-09-20 12:03:01,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-09-20 12:03:01,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2024-09-20 12:03:01,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2024-09-20 12:03:01,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,464 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,473 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 12:03:01,476 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,476 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,478 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,481 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,484 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-09-20 12:03:01,484 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-09-20 12:03:01,484 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2024-09-20 12:03:01,484 INFO L274 PluginConnector]: RCFGBuilder initialized
[2024-09-20 12:03:01,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (1/1) ...
[2024-09-20 12:03:01,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-09-20 12:03:01,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 12:03:01,507 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 12:03:01,510 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 12:03:01,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-09-20 12:03:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2024-09-20 12:03:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2024-09-20 12:03:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-09-20 12:03:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2024-09-20 12:03:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2024-09-20 12:03:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-09-20 12:03:01,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-09-20 12:03:01,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2024-09-20 12:03:01,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2024-09-20 12:03:01,585 INFO L242 CfgBuilder]: Building ICFG
[2024-09-20 12:03:01,586 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation
[2024-09-20 12:03:01,721 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live.
[2024-09-20 12:03:01,721 INFO L291 CfgBuilder]: Performing block encoding
[2024-09-20 12:03:01,742 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-09-20 12:03:01,742 INFO L318 CfgBuilder]: Removed 1 assume(true) statements.
[2024-09-20 12:03:01,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:03:01 BoogieIcfgContainer
[2024-09-20 12:03:01,742 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-09-20 12:03:01,744 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-09-20 12:03:01,744 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2024-09-20 12:03:01,747 INFO L274 PluginConnector]: TraceAbstraction initialized
[2024-09-20 12:03:01,747 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:03:01" (1/3) ...
[2024-09-20 12:03:01,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe5ec30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:03:01, skipping insertion in model container
[2024-09-20 12:03:01,748 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:03:01" (2/3) ...
[2024-09-20 12:03:01,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fe5ec30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:03:01, skipping insertion in model container
[2024-09-20 12:03:01,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:03:01" (3/3) ...
[2024-09-20 12:03:01,750 INFO L112 eAbstractionObserver]: Analyzing ICFG ddlm2013.i
[2024-09-20 12:03:01,762 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-09-20 12:03:01,763 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-09-20 12:03:01,801 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-09-20 12:03:01,806 INFO L336 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@167c2589, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-09-20 12:03:01,806 INFO L337 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-09-20 12:03:01,809 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3)
[2024-09-20 12:03:01,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2024-09-20 12:03:01,814 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 12:03:01,814 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 12:03:01,814 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 12:03:01,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1442839998, now seen corresponding path program 1 times
[2024-09-20 12:03:01,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 12:03:01,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574005527]
[2024-09-20 12:03:01,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:01,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 12:03:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:01,951 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 12:03:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:01,962 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 12:03:01,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 12:03:01,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574005527]
[2024-09-20 12:03:01,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574005527] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 12:03:01,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 12:03:01,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2024-09-20 12:03:01,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984275577]
[2024-09-20 12:03:01,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 12:03:01,973 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-09-20 12:03:01,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 12:03:01,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-09-20 12:03:01,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-20 12:03:01,992 INFO L87 Difference]: Start difference. First operand has 21 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 15 states have internal predecessors, (20), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:02,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 12:03:02,012 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions.
[2024-09-20 12:03:02,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2024-09-20 12:03:02,018 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 12
[2024-09-20 12:03:02,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 12:03:02,023 INFO L225 Difference]: With dead ends: 33
[2024-09-20 12:03:02,024 INFO L226 Difference]: Without dead ends: 15
[2024-09-20 12:03:02,025 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-09-20 12:03:02,029 INFO L434 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 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 12:03:02,030 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 12:03:02,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states.
[2024-09-20 12:03:02,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15.
[2024-09-20 12:03:02,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:02,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions.
[2024-09-20 12:03:02,051 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12
[2024-09-20 12:03:02,051 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 12:03:02,051 INFO L474 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions.
[2024-09-20 12:03:02,051 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:02,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:02,052 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions.
[2024-09-20 12:03:02,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14
[2024-09-20 12:03:02,052 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 12:03:02,052 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 12:03:02,053 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-09-20 12:03:02,053 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 12:03:02,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:02,053 INFO L85 PathProgramCache]: Analyzing trace with hash -851694555, now seen corresponding path program 1 times
[2024-09-20 12:03:02,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 12:03:02,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073112867]
[2024-09-20 12:03:02,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:02,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 12:03:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:02,381 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 12:03:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:02,386 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 12:03:02,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 12:03:02,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073112867]
[2024-09-20 12:03:02,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073112867] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 12:03:02,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 12:03:02,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-09-20 12:03:02,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355946470]
[2024-09-20 12:03:02,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 12:03:02,390 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-09-20 12:03:02,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 12:03:02,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-09-20 12:03:02,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-09-20 12:03:02,393 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 12:03:02,428 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions.
[2024-09-20 12:03:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2024-09-20 12:03:02,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13
[2024-09-20 12:03:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 12:03:02,429 INFO L225 Difference]: With dead ends: 23
[2024-09-20 12:03:02,429 INFO L226 Difference]: Without dead ends: 17
[2024-09-20 12:03:02,430 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-09-20 12:03:02,431 INFO L434 NwaCegarLoop]: 14 mSDtfsCounter, 2 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 12:03:02,434 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 51 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 12:03:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states.
[2024-09-20 12:03:02,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17.
[2024-09-20 12:03:02,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:02,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions.
[2024-09-20 12:03:02,441 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 13
[2024-09-20 12:03:02,441 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 12:03:02,441 INFO L474 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions.
[2024-09-20 12:03:02,441 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:02,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:02,442 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions.
[2024-09-20 12:03:02,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-20 12:03:02,443 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 12:03:02,443 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 12:03:02,444 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-09-20 12:03:02,444 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 12:03:02,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:02,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1149051831, now seen corresponding path program 1 times
[2024-09-20 12:03:02,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 12:03:02,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609760336]
[2024-09-20 12:03:02,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:02,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 12:03:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:02,857 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 12:03:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:02,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 12:03:02,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 12:03:02,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609760336]
[2024-09-20 12:03:02,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609760336] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 12:03:02,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729233580]
[2024-09-20 12:03:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:02,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 12:03:02,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 12:03:02,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 12:03:02,876 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-09-20 12:03:02,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:02,912 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjuncts are in the unsatisfiable core
[2024-09-20 12:03:02,916 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 12:03:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 12:03:03,003 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 12:03:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 12:03:03,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729233580] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 12:03:03,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 12:03:03,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14
[2024-09-20 12:03:03,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644866037]
[2024-09-20 12:03:03,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 12:03:03,096 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states
[2024-09-20 12:03:03,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 12:03:03,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2024-09-20 12:03:03,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182
[2024-09-20 12:03:03,098 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 12 states have internal predecessors, (27), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:03,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 12:03:03,186 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions.
[2024-09-20 12:03:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2024-09-20 12:03:03,186 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 12 states have internal predecessors, (27), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16
[2024-09-20 12:03:03,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 12:03:03,187 INFO L225 Difference]: With dead ends: 28
[2024-09-20 12:03:03,187 INFO L226 Difference]: Without dead ends: 22
[2024-09-20 12:03:03,188 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240
[2024-09-20 12:03:03,188 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-09-20 12:03:03,189 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 102 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-09-20 12:03:03,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2024-09-20 12:03:03,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20.
[2024-09-20 12:03:03,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:03,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions.
[2024-09-20 12:03:03,193 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 16
[2024-09-20 12:03:03,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 12:03:03,193 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions.
[2024-09-20 12:03:03,193 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 12 states have internal predecessors, (27), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:03,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:03,194 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions.
[2024-09-20 12:03:03,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2024-09-20 12:03:03,194 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 12:03:03,195 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 12:03:03,211 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-09-20 12:03:03,395 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 12:03:03,396 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 12:03:03,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:03,396 INFO L85 PathProgramCache]: Analyzing trace with hash -447987253, now seen corresponding path program 1 times
[2024-09-20 12:03:03,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 12:03:03,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973684430]
[2024-09-20 12:03:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:03,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 12:03:03,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:03,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 12:03:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-09-20 12:03:03,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 12:03:03,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973684430]
[2024-09-20 12:03:03,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973684430] provided 1 perfect and 0 imperfect interpolant sequences
[2024-09-20 12:03:03,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-09-20 12:03:03,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-09-20 12:03:03,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802504020]
[2024-09-20 12:03:03,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 12:03:03,417 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 12:03:03,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 12:03:03,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 12:03:03,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-09-20 12:03:03,418 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:03,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 12:03:03,426 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions.
[2024-09-20 12:03:03,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 12:03:03,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 16
[2024-09-20 12:03:03,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 12:03:03,427 INFO L225 Difference]: With dead ends: 31
[2024-09-20 12:03:03,427 INFO L226 Difference]: Without dead ends: 20
[2024-09-20 12:03:03,428 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 12:03:03,428 INFO L434 NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 12:03:03,428 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 12:03:03,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2024-09-20 12:03:03,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2024-09-20 12:03:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2024-09-20 12:03:03,439 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16
[2024-09-20 12:03:03,439 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 12:03:03,439 INFO L474 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2024-09-20 12:03:03,439 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:03,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:03,440 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2024-09-20 12:03:03,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2024-09-20 12:03:03,445 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 12:03:03,445 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 12:03:03,446 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-09-20 12:03:03,446 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 12:03:03,446 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:03,446 INFO L85 PathProgramCache]: Analyzing trace with hash 797870501, now seen corresponding path program 2 times
[2024-09-20 12:03:03,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 12:03:03,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874691447]
[2024-09-20 12:03:03,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 12:03:03,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:03,840 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 12:03:03,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:03,843 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 12:03:03,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 12:03:03,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874691447]
[2024-09-20 12:03:03,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874691447] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 12:03:03,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946294874]
[2024-09-20 12:03:03,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2024-09-20 12:03:03,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 12:03:03,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 12:03:03,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 12:03:03,852 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-09-20 12:03:03,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2024-09-20 12:03:03,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2024-09-20 12:03:03,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 23 conjuncts are in the unsatisfiable core
[2024-09-20 12:03:03,887 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 12:03:04,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 12:03:04,013 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 12:03:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-09-20 12:03:04,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946294874] provided 0 perfect and 2 imperfect interpolant sequences
[2024-09-20 12:03:04,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-09-20 12:03:04,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19
[2024-09-20 12:03:04,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938986596]
[2024-09-20 12:03:04,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-09-20 12:03:04,149 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states
[2024-09-20 12:03:04,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 12:03:04,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2024-09-20 12:03:04,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342
[2024-09-20 12:03:04,153 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:04,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 12:03:04,482 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions.
[2024-09-20 12:03:04,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2024-09-20 12:03:04,482 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19
[2024-09-20 12:03:04,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 12:03:04,483 INFO L225 Difference]: With dead ends: 51
[2024-09-20 12:03:04,483 INFO L226 Difference]: Without dead ends: 30
[2024-09-20 12:03:04,484 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552
[2024-09-20 12:03:04,484 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 12 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-09-20 12:03:04,484 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 127 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-09-20 12:03:04,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states.
[2024-09-20 12:03:04,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23.
[2024-09-20 12:03:04,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions.
[2024-09-20 12:03:04,489 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 19
[2024-09-20 12:03:04,489 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 12:03:04,489 INFO L474 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions.
[2024-09-20 12:03:04,489 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 17 states have internal predecessors, (36), 4 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:04,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:04,489 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions.
[2024-09-20 12:03:04,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-09-20 12:03:04,490 INFO L208 NwaCegarLoop]: Found error trace
[2024-09-20 12:03:04,490 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-09-20 12:03:04,502 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-09-20 12:03:04,690 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 12:03:04,691 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-09-20 12:03:04,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:04,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1271204789, now seen corresponding path program 1 times
[2024-09-20 12:03:04,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-09-20 12:03:04,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714751163]
[2024-09-20 12:03:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:04,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-09-20 12:03:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:04,750 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0
[2024-09-20 12:03:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:04,752 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-09-20 12:03:04,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-09-20 12:03:04,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714751163]
[2024-09-20 12:03:04,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714751163] provided 0 perfect and 1 imperfect interpolant sequences
[2024-09-20 12:03:04,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205235930]
[2024-09-20 12:03:04,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-09-20 12:03:04,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-09-20 12:03:04,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3
[2024-09-20 12:03:04,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-09-20 12:03:04,757 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-09-20 12:03:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-09-20 12:03:04,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 7 conjuncts are in the unsatisfiable core
[2024-09-20 12:03:04,794 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2024-09-20 12:03:04,816 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-09-20 12:03:04,816 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2024-09-20 12:03:04,842 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-09-20 12:03:04,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205235930] provided 1 perfect and 1 imperfect interpolant sequences
[2024-09-20 12:03:04,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences.
[2024-09-20 12:03:04,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 7
[2024-09-20 12:03:04,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134652817]
[2024-09-20 12:03:04,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-09-20 12:03:04,846 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-09-20 12:03:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-09-20 12:03:04,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-09-20 12:03:04,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-09-20 12:03:04,847 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:04,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-09-20 12:03:04,864 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions.
[2024-09-20 12:03:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2024-09-20 12:03:04,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 22
[2024-09-20 12:03:04,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2024-09-20 12:03:04,864 INFO L225 Difference]: With dead ends: 23
[2024-09-20 12:03:04,865 INFO L226 Difference]: Without dead ends: 0
[2024-09-20 12:03:04,865 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42
[2024-09-20 12:03:04,865 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-09-20 12:03:04,866 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-09-20 12:03:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2024-09-20 12:03:04,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2024-09-20 12:03:04,866 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 12:03:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2024-09-20 12:03:04,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22
[2024-09-20 12:03:04,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2024-09-20 12:03:04,867 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2024-09-20 12:03:04,867 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2024-09-20 12:03:04,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2024-09-20 12:03:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2024-09-20 12:03:04,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2024-09-20 12:03:04,869 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2024-09-20 12:03:04,886 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2024-09-20 12:03:05,073 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5
[2024-09-20 12:03:05,080 INFO L408 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1]
[2024-09-20 12:03:05,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2024-09-20 12:03:05,251 INFO L165 ceAbstractionStarter]: Computing trace abstraction results
[2024-09-20 12:03:05,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:03:05 BoogieIcfgContainer
[2024-09-20 12:03:05,263 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2024-09-20 12:03:05,263 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2024-09-20 12:03:05,263 INFO L270 PluginConnector]: Initializing Witness Printer...
[2024-09-20 12:03:05,263 INFO L274 PluginConnector]: Witness Printer initialized
[2024-09-20 12:03:05,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:03:01" (3/4) ...
[2024-09-20 12:03:05,265 INFO L139 WitnessPrinter]: Generating witness for correct program
[2024-09-20 12:03:05,298 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml
[2024-09-20 12:03:05,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2024-09-20 12:03:05,298 INFO L158 Benchmark]: Toolchain (without parser) took 4084.45ms. Allocated memory was 165.7MB in the beginning and 241.2MB in the end (delta: 75.5MB). Free memory was 110.5MB in the beginning and 175.2MB in the end (delta: -64.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,299 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB.
[2024-09-20 12:03:05,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.16ms. Allocated memory is still 165.7MB. Free memory was 110.5MB in the beginning and 135.1MB in the end (delta: -24.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,299 INFO L158 Benchmark]: Boogie Procedure Inliner took 13.64ms. Allocated memory is still 165.7MB. Free memory was 135.1MB in the beginning and 133.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,299 INFO L158 Benchmark]: Boogie Preprocessor took 26.79ms. Allocated memory is still 165.7MB. Free memory was 133.9MB in the beginning and 132.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,299 INFO L158 Benchmark]: RCFGBuilder took 258.18ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 120.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,300 INFO L158 Benchmark]: TraceAbstraction took 3518.89ms. Allocated memory was 165.7MB in the beginning and 241.2MB in the end (delta: 75.5MB). Free memory was 119.3MB in the beginning and 177.3MB in the end (delta: -58.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,300 INFO L158 Benchmark]: Witness Printer took 35.06ms. Allocated memory is still 241.2MB. Free memory was 177.3MB in the beginning and 175.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2024-09-20 12:03:05,301 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.14ms. Allocated memory is still 96.5MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 225.16ms. Allocated memory is still 165.7MB. Free memory was 110.5MB in the beginning and 135.1MB in the end (delta: -24.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 13.64ms. Allocated memory is still 165.7MB. Free memory was 135.1MB in the beginning and 133.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 26.79ms. Allocated memory is still 165.7MB. Free memory was 133.9MB in the beginning and 132.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 258.18ms. Allocated memory is still 165.7MB. Free memory was 132.5MB in the beginning and 120.5MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* TraceAbstraction took 3518.89ms. Allocated memory was 165.7MB in the beginning and 241.2MB in the end (delta: 75.5MB). Free memory was 119.3MB in the beginning and 177.3MB in the end (delta: -58.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB.
* Witness Printer took 35.06ms. Allocated memory is still 241.2MB. Free memory was 177.3MB in the beginning and 175.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- PositiveResult [Line: 19]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.3s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 343 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 255 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 177 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 88 mSDtfsCounter, 177 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 164 GetRequests, 114 SyntacticMatches, 4 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=5, InterpolantAutomatonStates: 35, 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, 6 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 155 NumberOfCodeBlocks, 155 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 200 ConstructedInterpolants, 0 QuantifiedInterpolants, 903 SizeOfPredicates, 4 NumberOfNonLiveVariables, 224 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 41/74 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: 35]: Loop Invariant
Derived loop invariant: ((flag == 0) || (((0 == (i % 2)) && (a == b)) && ((((long long) a + 1) % 4294967296) == ((((long long) b + j) + ((unsigned long long) i * 4294967295)) % 4294967296))))
- ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert
Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0)
RESULT: Ultimate proved your program to be correct!
[2024-09-20 12:03:05,335 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0
Received shutdown request...
--- End real Ultimate output ---
Execution finished normally
Writing output log to file Ultimate.log
Result:
TRUE